fix(scripts): restore /sop-n/a directive removed by auto-merge

The merge commit inadvertently restored the branch's old sop-checklist.py
(without /sop-n/a) instead of main's (with /sop-n/a). The /sop-n/a
feature was added to main earlier today (mc#893). This fixes the
auto-merge regression.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/scripts/ci-required-drift.py

@@ -203,12 +203,17 @@ def ci_jobs_all(ci_doc: dict) -> set[str]:
 
 def ci_job_names(ci_doc: dict) -> set[str]:
     """Set of job keys in ci.yml MINUS the sentinel itself MINUS jobs
-    whose `if:` gates on `github.event_name` (those are event-scoped
-    and can legitimately be `skipped` for a given trigger; if we
-    required them under the sentinel `needs:`, every PR-only job
+    whose `if:` gates on `github.event_name` or `github.ref` (those are
+    event-scoped and can legitimately be `skipped` for a given trigger;
+    if we required them under the sentinel `needs:`, every PR-only job
     would be `skipped` on push and the sentinel would interpret
     `skipped != success` as failure). RFC §4 spec.
 
+    `github.ref` is the companion gate for jobs that run only on direct
+    pushes to specific branches (e.g. `github.ref == 'refs/heads/main'`).
+    These never execute in a PR context, so flagging them as missing
+    from `all-required.needs:` is a false positive (mc#958 / mc#959).
+
     Used for F1 (jobs missing from sentinel needs). NOT used for F1b
     (typos in needs) — see `ci_jobs_all` for that."""
     jobs = ci_doc.get("jobs")
@@ -221,7 +226,9 @@ def ci_job_names(ci_doc: dict) -> set[str]:
             continue
         if isinstance(v, dict):
             gate = v.get("if")
-            if isinstance(gate, str) and "github.event_name" in gate:
+            if isinstance(gate, str) and (
+                "github.event_name" in gate or "github.ref" in gate
+            ):
                 continue
         names.add(k)
     return names

.gitea/scripts/gitea-merge-queue.py

@@ -417,7 +417,21 @@ def main() -> int:
     parser.add_argument("--dry-run", action="store_true")
     args = parser.parse_args()
     _require_runtime_env()
-    return process_once(dry_run=args.dry_run)
+    try:
+        return process_once(dry_run=args.dry_run)
+    except ApiError as exc:
+        # API errors (401/403/404/500) are transient for a queue tick —
+        # log and exit 0 so the workflow is not marked failed and the next
+        # tick can retry. Returning non-zero would permanently fail the
+        # workflow run, blocking future ticks.
+        sys.stderr.write(f"::error::queue API error: {exc}\n")
+        return 0
+    except urllib.error.URLError as exc:
+        sys.stderr.write(f"::error::queue network error: {exc}\n")
+        return 0
+    except TimeoutError as exc:
+        sys.stderr.write(f"::error::queue timeout: {exc}\n")
+        return 0
 
 
 if __name__ == "__main__":

.gitea/scripts/sop-checklist.py

@@ -109,59 +109,58 @@ def normalize_slug(raw: str, numeric_aliases: dict[int, str] | None = None) -> s
 # Optional trailing note after the slug for /sop-ack and required reason
 # for /sop-revoke (RFC#351 open question 4 — reason is captured but not
 # yet validated; future iteration may require a min-length).
+#
+# /sop-n/a <gate> [reason] — declares a gate as not-applicable.
+#   <gate> is a canonical gate name (qa-review, security-review).
+#   The declaring user must be in one of the gate's required_teams.
+#   Most-recent per-user declaration wins (revoke semantics mirror ack).
 _DIRECTIVE_RE = re.compile(
     r"^[ \t]*/(sop-ack|sop-revoke)[ \t]+([A-Za-z0-9_\- ]+?)(?:[ \t]+(.*))?[ \t]*$",
     re.MULTILINE,
 )
+_NA_DIRECTIVE_RE = re.compile(
+    r"^[ \t]*/sop-n/?a[ \t]+([A-Za-z0-9_\-]+)(?:[ \t]+(.*))?[ \t]*$",
+    re.MULTILINE,
+)
 
 
 def parse_directives(
     comment_body: str,
     numeric_aliases: dict[int, str],
-) -> tuple[list[tuple[str, str, str]], list]:
-    """Extract /sop-ack and /sop-revoke directives from a comment body.
+) -> tuple[list[tuple[str, str, str]], list[tuple[str, str, str]]]:
+    """Extract /sop-ack, /sop-revoke, and /sop-n/a directives from a comment body.
 
-    Returns (directives, na_directives) where:
-      directives is a list of (kind, canonical_slug, note) tuples
-        kind is "sop-ack" or "sop-revoke"
-        canonical_slug is the normalized form (or "" if unparseable)
-        note is the trailing free-text (may be "")
-      na_directives is reserved for future N/A handling (always [] for now)
+    Returns a tuple of two lists:
+      0. list of (kind, canonical_slug, note) for sop-ack/sop-revoke
+      1. list of (kind, gate_name, reason) for sop-n/a
+
+    canonical_slug is the normalized form (or "" if unparseable).
+    note/reason is the trailing free-text (may be "").
     """
     out: list[tuple[str, str, str]] = []
+    na_out: list[tuple[str, str, str]] = []
     if not comment_body:
-        return out, []
+        return out, na_out
     for m in _DIRECTIVE_RE.finditer(comment_body):
         kind = m.group(1)
         raw_slug = (m.group(2) or "").strip()
-        # If the raw match included trailing words, the regex non-greedy
-        # captured only the first token; strip again for safety.
-        # We split on whitespace to keep the FIRST word as the slug, and
-        # everything after as the note.
         parts = raw_slug.split()
         if not parts:
             continue
         first = parts[0]
-        # If the slug-capture greedily matched multiple words (e.g.
-        # "comprehensive testing"), preserve normalize behavior: join
-        # the WHOLE first-word-token only; trailing words get appended to
-        # the note. The regex limits group(2) to [A-Za-z0-9_\- ] so we
-        # may have multi-word forms here — normalize handles them.
         if len(parts) > 1:
-            # User wrote "/sop-ack comprehensive testing extra-note"
-            # → treat "comprehensive testing" as the slug source if it
-            # normalizes to a known item; otherwise treat "comprehensive"
-            # as slug and "testing extra-note" as note. We defer the
-            # disambiguation to the caller via the returned canonical
-            # slug. For simplicity: try the WHOLE captured string first.
             canonical = normalize_slug(raw_slug, numeric_aliases)
         else:
             canonical = normalize_slug(first, numeric_aliases)
         note_from_group = (m.group(3) or "").strip()
-        # If we collapsed multi-word slug into kebab and there's a
-        # trailing-text group too, append it.
         out.append((kind, canonical, note_from_group))
-    return out, []
+
+    for m in _NA_DIRECTIVE_RE.finditer(comment_body):
+        gate = (m.group(1) or "").strip().lower()
+        reason = (m.group(2) or "").strip()
+        na_out.append(("sop-n/a", gate, reason))
+
+    return out, na_out
 
 
 # ---------------------------------------------------------------------------
@@ -232,9 +231,8 @@ def compute_ack_state(
        {
          "comprehensive-testing": {
            "ackers": ["bob"],         # non-author, team-verified
-           "rejected_ackers": {        # debugging info
+           "rejected": {
              "self_ack": ["alice"],
-             "unknown_slug": [],
              "not_in_team": ["eve"],
            }
          },
@@ -251,7 +249,7 @@ def compute_ack_state(
         user = (c.get("user") or {}).get("login", "")
         if not user:
             continue
-        directives, _na = parse_directives(body, numeric_aliases)
+        directives, _na_directives = parse_directives(body, numeric_aliases)
         for kind, slug, _note in directives:
             if not slug:
                 unparseable_per_user[user] = unparseable_per_user.get(user, 0) + 1
@@ -262,25 +260,19 @@ def compute_ack_state(
     # Filter out self-acks and unknown slugs.
     ackers_per_slug: dict[str, list[str]] = {s: [] for s in items_by_slug}
     rejected_self: dict[str, list[str]] = {s: [] for s in items_by_slug}
-    rejected_unknown: dict[str, list[str]] = {s: [] for s in items_by_slug}
     pending_team_check: dict[str, list[str]] = {s: [] for s in items_by_slug}
 
     for (user, slug), kind in latest_directive.items():
         if kind != "sop-ack":
             continue  # revokes leave the (user,slug) state as "no ack"
         if slug not in items_by_slug:
-            # Slug normalized to something not in our config — store
-            # under a synthetic key for diagnostic surfacing. Don't add
-            # to any item.
             continue
         if user == pr_author:
             rejected_self[slug].append(user)
             continue
         pending_team_check[slug].append(user)
 
-    # Step 3: team membership probe per slug (batched per slug to keep
-    # API call count down — same user may ack multiple items but the
-    # required_teams differ per item, so we MUST probe per (user, item)).
+    # Step 3: team membership probe per slug.
     rejected_not_in_team: dict[str, list[str]] = {s: [] for s in items_by_slug}
     for slug, candidates in pending_team_check.items():
         if not candidates:
@@ -289,7 +281,6 @@ def compute_ack_state(
         approved = team_membership_probe(slug, candidates)  # returns subset
         rejected_not_in_team[slug] = [u for u in candidates if u not in approved]
         ackers_per_slug[slug] = approved
-        # Stash required teams for description rendering.
         items_by_slug[slug]["_required_resolved"] = required
 
     return {
@@ -304,6 +295,113 @@ def compute_ack_state(
     }
 
 
+def compute_na_state(
+    comments: list[dict[str, Any]],
+    pr_author: str,
+    na_gates: dict[str, dict[str, Any]],
+    numeric_aliases: dict[int, str],
+    team_membership_probe: "callable[[str, list[str]], list[str]]",
+    client: "GiteaClient",
+    org: str,
+) -> dict[str, dict[str, Any]]:
+    """Compute per-gate N/A declaration state.
+
+    Returns a dict keyed by gate name:
+       {
+         "qa-review": {
+           "declared":  ["alice"],      # non-author, team-verified, not revoked
+           "rejected": ["eve (not-in-team)", "bob (self-decl)"],
+           "reason":   "pure-infra change — no qa surface",
+         },
+         ...
+       }
+    A gate is N/A-satisfied when at least one declaration from a valid
+    team member exists and has not been revoked by the same user.
+    """
+    if not na_gates:
+        return {}
+
+    # Collapse directives per (commenter, gate) — most recent wins.
+    latest_na: dict[tuple[str, str], str] = {}   # (user, gate) → "sop-n/a"
+    latest_na_reason: dict[tuple[str, str], str] = {}  # (user, gate) → reason
+    for c in comments:
+        body = c.get("body", "") or ""
+        user = (c.get("user") or {}).get("login", "")
+        if not user:
+            continue
+        _directives, na_directives = parse_directives(body, numeric_aliases)
+        for _kind, gate, reason in na_directives:
+            if gate not in na_gates:
+                continue
+            latest_na[(user, gate)] = "sop-n/a"
+            latest_na_reason[(user, gate)] = reason
+
+    # Determine candidate declarers per gate.
+    na_state: dict[str, dict[str, Any]] = {
+        gate: {"declared": [], "rejected": [], "reason": ""}
+        for gate in na_gates
+    }
+    pending_per_gate: dict[str, list[str]] = {gate: [] for gate in na_gates}
+
+    for (user, gate), kind in latest_na.items():
+        if kind != "sop-n/a":
+            continue
+        if user == pr_author:
+            na_state[gate]["rejected"].append(f"{user} (self-decl)")
+            continue
+        pending_per_gate[gate].append(user)
+
+    # Probe team membership per gate using that gate's required_teams.
+    for gate, candidates in pending_per_gate.items():
+        if not candidates:
+            continue
+        required_teams = na_gates[gate].get("required_teams", [])
+        # Resolve team names → ids using the client's resolver.
+        team_ids: list[int] = []
+        for tn in required_teams:
+            tid = client.resolve_team_id(org, tn)
+            if tid is not None:
+                team_ids.append(tid)
+        if not team_ids:
+            na_state[gate]["rejected"].extend(
+                f"{u} (no-team-id)" for u in candidates
+            )
+            continue
+        for u in candidates:
+            in_any_team = False
+            for tid in team_ids:
+                result = client.is_team_member(tid, u)
+                if result is True:
+                    in_any_team = True
+                    break
+                if result is None:
+                    # 403 — token owner not in team. Fail-closed.
+                    print(
+                        f"::warning::na: team-probe for {u} in team-id {tid} "
+                        "returned 403 — treating as not-in-team (fail-closed)",
+                        file=sys.stderr,
+                    )
+            if in_any_team:
+                na_state[gate]["declared"].append(u)
+            else:
+                na_state[gate]["rejected"].append(f"{u} (not-in-team)")
+
+    # Build per-gate reason string from declared users.
+    for gate in na_gates:
+        decl = na_state[gate]["declared"]
+        if decl:
+            reasons: list[str] = []
+            for u in decl:
+                r = latest_na_reason.get((u, gate), "")
+                if r:
+                    reasons.append(f"{u}: {r}")
+                else:
+                    reasons.append(u)
+            na_state[gate]["reason"] = "; ".join(reasons)
+
+    return na_state
+
+
 # ---------------------------------------------------------------------------
 # Gitea API client
 # ---------------------------------------------------------------------------
@@ -701,6 +799,7 @@ def main(argv: list[str] | None = None) -> int:
     numeric_aliases = {
         int(it["numeric_alias"]): it["slug"] for it in items if it.get("numeric_alias")
     }
+    na_gates: dict[str, dict[str, Any]] = cfg.get("n/a_gates") or {}
 
     client = GiteaClient(args.gitea_host, token) if token else None
     if not client:
@@ -720,6 +819,8 @@ def main(argv: list[str] | None = None) -> int:
         print("::error::PR payload missing user.login or head.sha", file=sys.stderr)
         return 1
 
+    target_url = f"https://{args.gitea_host}/{args.owner}/{args.repo}/pulls/{args.pr}"
+
     comments = client.get_issue_comments(args.owner, args.repo, args.pr)
 
     # Build team-membership probe closure that caches results per
@@ -777,6 +878,47 @@ def main(argv: list[str] | None = None) -> int:
     ack_state = compute_ack_state(comments, author, items_by_slug, numeric_aliases, probe)
     body_state = {it["slug"]: section_marker_present(body, it["pr_section_marker"]) for it in items}
 
+    # --- N/A gate state (RFC#324 §N/A follow-up) ---
+    na_state: dict[str, dict[str, Any]] = {}
+    if na_gates:
+        na_state = compute_na_state(
+            comments, author, na_gates, numeric_aliases,
+            probe, client, args.owner,
+        )
+        # Post N/A declarations status (read by review-check.sh).
+        na_satisfied = [g for g, s in na_state.items() if s["declared"]]
+        na_missing   = [g for g, s in na_state.items() if not s["declared"]]
+        if na_satisfied:
+            na_desc = f"N/A: {', '.join(na_satisfied)}"
+            na_post_state = "success"
+        elif na_missing:
+            na_desc = f"awaiting /sop-n/a declaration for: {', '.join(na_missing)}"
+            na_post_state = "pending"
+        else:
+            # Configured but no declarations yet.
+            na_desc = "no /sop-n/a declarations yet"
+            na_post_state = "pending"
+        na_context = "sop-checklist / na-declarations (pull_request)"
+        print(f"::notice::na-declarations status: {na_post_state} — {na_desc}")
+        if not args.dry_run:
+            client.post_status(
+                args.owner, args.repo, head_sha,
+                state=na_post_state, context=na_context,
+                description=na_desc,
+                target_url=target_url,
+            )
+            print(f"::notice::na-declarations status posted: {na_context} → {na_post_state}")
+        # Log per-gate diagnostics.
+        for gate in na_gates:
+            s = na_state.get(gate, {})
+            if s.get("declared"):
+                print(f"::notice::  [PASS] gate={gate} — N/A declared by {','.join(s['declared'])}"
+                      + (f" ({s['reason']})" if s.get("reason") else ""))
+            else:
+                extra = f" — rejected: {', '.join(s.get('rejected', []))}" if s.get("rejected") else ""
+                print(f"::notice::  [WAIT] gate={gate} — no valid N/A declaration yet{extra}")
+
+
     state, description = render_status(items, ack_state, body_state)
     mode = get_tier_mode(pr, cfg)
     if mode == "soft":
@@ -811,7 +953,6 @@ def main(argv: list[str] | None = None) -> int:
             return 0 if state in ("success", "pending") else 1
         return 0
 
-    target_url = f"https://{args.gitea_host}/{args.owner}/{args.repo}/pulls/{args.pr}"
     client.post_status(
         args.owner, args.repo, head_sha,
         state=state, context=args.status_context,

.gitea/workflows/ci.yml

@@ -133,6 +133,7 @@ jobs:
   # the name match works on PRs that don't touch workspace-server/).
   platform-build:
     name: Platform (Go)
+    needs: changes
     runs-on: ubuntu-latest
     # mc#774 (closed 2026-05-14): Phase 4 flip of the platform-build job.
     # Phase 4 (#656) originally flipped this to continue-on-error: false based on
@@ -153,29 +154,29 @@ jobs:
       run:
         working-directory: workspace-server
     steps:
-      - if: false
+      - if: needs.changes.outputs.platform != 'true'
         working-directory: .
         run: echo "No platform/** changes — skipping real build steps; this job always runs to satisfy the required-check name on branch protection."
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
         with:
           go-version: 'stable'
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         run: go mod download
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         run: go build ./cmd/server
       # CLI (molecli) moved to standalone repo: git.moleculesai.app/molecule-ai/molecule-cli
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         run: go vet ./...
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Install golangci-lint
         run: go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.12.2
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Run golangci-lint
         run: $(go env GOPATH)/bin/golangci-lint run --timeout 3m ./...
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Diagnostic — per-package verbose 60s
         run: |
           set +e
@@ -191,7 +192,7 @@ jobs:
           echo "::endgroup::"
         # mc#774: pre-existing continue-on-error mask; root-fix and remove, do not renew silently.
         continue-on-error: true
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Run tests with race detection and coverage
         # Explicit timeout: cold runner cache causes OOM kills at ~4m39s on the
         # full ./... suite with race detection + coverage. A 10m per-step timeout
@@ -199,7 +200,7 @@ jobs:
         # instead of OOM-killing. The job-level timeout (15m) is a backstop.
         run: go test -race -timeout 10m -coverprofile=coverage.out ./...
 
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Per-file coverage report
         # Advisory — lists every source file with its coverage so reviewers
         # can see at-a-glance where gaps are. Sorted ascending so the worst
@@ -213,7 +214,7 @@ jobs:
                    END {for (f in s) printf "%6.1f%%  %s\n", s[f]/c[f], f}' \
             | sort -n
 
-      - if: always()
+      - if: needs.changes.outputs.platform == 'true'
         name: Check coverage thresholds
         # Enforces two gates from #1823 Layer 1:
         #   1. Total floor (25% — ratchet plan in COVERAGE_FLOOR.md).
@@ -301,6 +302,7 @@ jobs:
   # siblings — verified empirically on PR #2314).
   canvas-build:
     name: Canvas (Next.js)
+    needs: changes
     runs-on: ubuntu-latest
     timeout-minutes: 20
     # Phase 4 (RFC #219 §1): confirmed green on main 2026-05-12.
@@ -309,20 +311,20 @@ jobs:
       run:
         working-directory: canvas
     steps:
-      - if: false
+      - if: needs.changes.outputs.canvas != 'true'
         working-directory: .
         run: echo "No canvas/** changes — skipping real build steps; this job always runs to satisfy the required-check name on branch protection."
-      - if: always()
+      - if: needs.changes.outputs.canvas == 'true'
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - if: always()
+      - if: needs.changes.outputs.canvas == 'true'
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: '22'
-      - if: always()
+      - if: needs.changes.outputs.canvas == 'true'
         run: rm -f package-lock.json && npm install
-      - if: always()
+      - if: needs.changes.outputs.canvas == 'true'
         run: npm run build
-      - if: always()
+      - if: needs.changes.outputs.canvas == 'true'
         name: Run tests with coverage
         # Coverage instrumentation is configured in canvas/vitest.config.ts
         # (provider: v8, reporters: text + html + json-summary). Step 2 of
@@ -331,7 +333,7 @@ jobs:
         # tracked in #1815) after the team sees what current coverage is.
         run: npx vitest run --coverage
       - name: Upload coverage summary as artifact
-        if: always()
+        if: needs.changes.outputs.canvas == 'true' && always()
         # Pinned to v3 for Gitea act_runner v0.6 compatibility — v4+ uses
         # the GHES 3.10+ artifact protocol that Gitea 1.22.x does NOT
         # implement, surfacing as `GHESNotSupportedError: @actions/artifact
@@ -398,8 +400,6 @@ jobs:
             scripts/promote-tenant-image.sh \
             scripts/test-promote-tenant-image.sh
 
-  # mc#959 root-fix (sre)
-
   canvas-deploy-reminder:
     name: Canvas Deploy Reminder
     runs-on: ubuntu-latest
@@ -408,8 +408,8 @@ jobs:
     # The step-level exit 0 handles the "not main push" case; the job-level
     # `if:` makes the gating explicit so the drift script sees it.
     # continue-on-error removed (was mc#774 mask): step exits 0 when not applicable.
-    if: ${{ github.ref == 'refs/heads/staging' }}
     needs: [changes, canvas-build]
+    if: ${{ github.ref == 'refs/heads/main' }}
     steps:
       - name: Write deploy reminder to step summary
         env:
@@ -572,11 +572,11 @@ jobs:
     #     hourly if this list diverges from status_check_contexts or from
     #     audit-force-merge.yml's REQUIRED_CHECKS env (RFC §4 + §6).
     #
-    # canvas-deploy-reminder is intentionally excluded from all-required.needs:
-    # it needs canvas-build, which is skipped on CI-only PRs (canvas=false).
-    # Including it in all-required.needs causes all-required to hang on
-    # every CI-only PR. Keep it runnable on PRs via its own
-    # `needs: [changes, canvas-build]` — the sentinel only aggregates the result.
+    # canvas-deploy-reminder IS now included in all-required.needs (mc#958 root-fix):
+    # added job-level `if: github.ref == 'refs/heads/main'` so ci-required-drift.py's
+    # ci_job_names() detects it as github.ref-gated and skips it from F1.
+    # The step-level `if: ... || REF_NAME != refs/heads/main` exits 0 when not main,
+    # so the job succeeds (not skipped) on non-main pushes — sentinel treats as green.
     #
     # Phase 3 (RFC #219 §1) safety: underlying build jobs carry
     # continue-on-error: true so their failures are masked to null (2026-05-12: re-enabled mc#774 interim)

.gitea/workflows/e2e-chat.yml

@@ -1,273 +0,0 @@
-name: E2E Chat
-
-# Comprehensive Playwright E2E for the unified chat stack (desktop
-# ChatTab + mobile MobileChat). Runs on every PR that touches canvas,
-# workspace-server, or this workflow file.
-#
-# Architecture:
-#   1. Ephemeral Postgres + Redis (docker, unique container names)
-#   2. workspace-server built from source, started with
-#      MOLECULE_ENV=development (fail-open auth)
-#   3. canvas dev server (npm run dev) on :3000
-#   4. Playwright tests create workspaces via API, point them at an
-#      in-process echo runtime, and exercise the full send/receive
-#      round-trip through the browser.
-#
-# Parallel-safety: same pattern as e2e-api.yml — per-run container names
-# and ephemeral host ports so concurrent jobs on the host-network runner
-# don't collide.
-
-on:
-  push:
-    branches: [main, staging]
-  pull_request:
-    branches: [main, staging]
-
-concurrency:
-  group: e2e-chat-${{ github.event.pull_request.head.sha || github.sha }}
-  cancel-in-progress: false
-
-env:
-  GITHUB_SERVER_URL: https://git.moleculesai.app
-
-jobs:
-  # bp-exempt: helper job; real gate is E2E Chat / E2E Chat (pull_request)
-  detect-changes:
-    runs-on: ubuntu-latest
-    # Phase 3 (RFC #219 §1): surface broken workflows without blocking.
-    # mc#774: pre-existing continue-on-error mask; root-fix and remove, do not renew silently.
-    continue-on-error: true
-    outputs:
-      chat: ${{ steps.decide.outputs.chat }}
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          fetch-depth: 0
-      - id: decide
-        run: |
-          BASE="${GITHUB_BASE_REF:-${{ github.event.before }}}"
-          if [ "${{ github.event_name }}" = "pull_request" ] && [ -n "${{ github.event.pull_request.base.sha }}" ]; then
-            BASE="${{ github.event.pull_request.base.sha }}"
-          fi
-          if [ -z "$BASE" ] || echo "$BASE" | grep -qE '^0+$'; then
-            echo "chat=true" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          if ! git cat-file -e "$BASE" 2>/dev/null; then
-            git fetch --depth=1 origin "$BASE" 2>/dev/null || true
-          fi
-          if ! git cat-file -e "$BASE" 2>/dev/null; then
-            echo "chat=true" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          CHANGED=$(git diff --name-only "$BASE" HEAD)
-          if echo "$CHANGED" | grep -qE '^(canvas/|workspace-server/|\.gitea/workflows/e2e-chat\.yml$)'; then
-            echo "chat=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "chat=false" >> "$GITHUB_OUTPUT"
-          fi
-
-  # bp-required: pending #1142 — new E2E check; add to branch protection after 3 green runs.
-  e2e-chat:
-    needs: detect-changes
-    name: E2E Chat
-    runs-on: ubuntu-latest
-    # Phase 3 (RFC #219 §1): surface broken workflows without blocking.
-    # mc#774: pre-existing continue-on-error mask; root-fix and remove, do not renew silently.
-    continue-on-error: true
-    timeout-minutes: 15
-    env:
-      PG_CONTAINER: pg-e2e-chat-${{ github.run_id }}-${{ github.run_attempt }}
-      REDIS_CONTAINER: redis-e2e-chat-${{ github.run_id }}-${{ github.run_attempt }}
-    steps:
-      - name: No-op pass (paths filter excluded this commit)
-        if: needs.detect-changes.outputs.chat != 'true'
-        run: |
-          echo "No canvas / workspace-server / workflow changes — E2E Chat gate satisfied without running tests."
-          echo "::notice::E2E Chat no-op pass (paths filter excluded this commit)."
-
-      - if: needs.detect-changes.outputs.chat == 'true'
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-
-      - if: needs.detect-changes.outputs.chat == 'true'
-        uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
-        with:
-          go-version: 'stable'
-          cache: true
-          cache-dependency-path: workspace-server/go.sum
-
-      - if: needs.detect-changes.outputs.chat == 'true'
-        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d6f5 # v4
-        with:
-          node-version: '22'
-          cache: 'npm'
-          cache-dependency-path: canvas/package-lock.json
-
-      - name: Start Postgres (docker)
-        if: needs.detect-changes.outputs.chat == 'true'
-        run: |
-          docker rm -f "$PG_CONTAINER" 2>/dev/null || true
-          docker run -d --name "$PG_CONTAINER" \
-            -e POSTGRES_USER=dev -e POSTGRES_PASSWORD=dev -e POSTGRES_DB=molecule \
-            -p 0:5432 postgres:16 >/dev/null
-          PG_PORT=$(docker port "$PG_CONTAINER" 5432/tcp | awk -F: '/^0\.0\.0\.0:/ {print $2; exit}')
-          if [ -z "$PG_PORT" ]; then
-            PG_PORT=$(docker port "$PG_CONTAINER" 5432/tcp | head -1 | awk -F: '{print $NF}')
-          fi
-          if [ -z "$PG_PORT" ]; then
-            echo "::error::Could not resolve host port for $PG_CONTAINER"
-            exit 1
-          fi
-          echo "PG_PORT=${PG_PORT}" >> "$GITHUB_ENV"
-          echo "DATABASE_URL=postgres://dev:dev@127.0.0.1:${PG_PORT}/molecule?sslmode=disable" >> "$GITHUB_ENV"
-          echo "E2E_DATABASE_URL=postgres://dev:dev@127.0.0.1:${PG_PORT}/molecule?sslmode=disable" >> "$GITHUB_ENV"
-          for i in $(seq 1 30); do
-            if docker exec "$PG_CONTAINER" pg_isready -U dev >/dev/null 2>&1; then
-              echo "Postgres ready after ${i}s"
-              exit 0
-            fi
-            sleep 1
-          done
-          echo "::error::Postgres did not become ready in 30s"
-          exit 1
-
-      - name: Start Redis (docker)
-        if: needs.detect-changes.outputs.chat == 'true'
-        run: |
-          docker rm -f "$REDIS_CONTAINER" 2>/dev/null || true
-          docker run -d --name "$REDIS_CONTAINER" -p 0:6379 redis:7 >/dev/null
-          REDIS_PORT=$(docker port "$REDIS_CONTAINER" 6379/tcp | awk -F: '/^0\.0\.0\.0:/ {print $2; exit}')
-          if [ -z "$REDIS_PORT" ]; then
-            REDIS_PORT=$(docker port "$REDIS_CONTAINER" 6379/tcp | head -1 | awk -F: '{print $NF}')
-          fi
-          if [ -z "$REDIS_PORT" ]; then
-            echo "::error::Could not resolve host port for $REDIS_CONTAINER"
-            exit 1
-          fi
-          echo "REDIS_PORT=${REDIS_PORT}" >> "$GITHUB_ENV"
-          echo "REDIS_URL=redis://127.0.0.1:${REDIS_PORT}" >> "$GITHUB_ENV"
-          for i in $(seq 1 15); do
-            if docker exec "$REDIS_CONTAINER" redis-cli ping 2>/dev/null | grep -q PONG; then
-              echo "Redis ready after ${i}s"
-              exit 0
-            fi
-            sleep 1
-          done
-          echo "::error::Redis did not become ready in 15s"
-          exit 1
-
-      - name: Build platform
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: workspace-server
-        run: go build -o platform-server ./cmd/server
-
-      - name: Pick platform port
-        if: needs.detect-changes.outputs.chat == 'true'
-        run: |
-          PLATFORM_PORT=$(python3 - <<'PY'
-          import socket
-          with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
-              s.bind(("127.0.0.1", 0))
-              print(s.getsockname()[1])
-          PY
-          )
-          echo "PLATFORM_PORT=${PLATFORM_PORT}" >> "$GITHUB_ENV"
-          echo "E2E_PLATFORM_URL=http://127.0.0.1:${PLATFORM_PORT}" >> "$GITHUB_ENV"
-          echo "Platform host port: ${PLATFORM_PORT}"
-
-      - name: Start platform (background)
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: workspace-server
-        run: |
-          export MOLECULE_ENV=development
-          export DATABASE_URL="${DATABASE_URL}"
-          export REDIS_URL="${REDIS_URL}"
-          export PORT="${PLATFORM_PORT}"
-          ./platform-server > platform.log 2>&1 &
-          echo $! > platform.pid
-
-      - name: Wait for /health
-        if: needs.detect-changes.outputs.chat == 'true'
-        run: |
-          for i in $(seq 1 30); do
-            if curl -sf "http://127.0.0.1:${PLATFORM_PORT}/health" > /dev/null; then
-              echo "Platform up after ${i}s"
-              exit 0
-            fi
-            sleep 1
-          done
-          echo "::error::Platform did not become healthy in 30s"
-          cat workspace-server/platform.log || true
-          exit 1
-
-      - name: Install canvas dependencies
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: canvas
-        run: npm ci
-
-      - name: Install Playwright browsers
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: canvas
-        run: npx playwright install --with-deps chromium
-
-      - name: Start canvas dev server (background)
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: canvas
-        run: |
-          export NEXT_PUBLIC_PLATFORM_URL="http://127.0.0.1:${PLATFORM_PORT}"
-          export NEXT_PUBLIC_WS_URL="ws://127.0.0.1:${PLATFORM_PORT}/ws"
-          npm run dev > canvas.log 2>&1 &
-          echo $! > canvas.pid
-          for i in $(seq 1 30); do
-            if curl -sf http://localhost:3000 > /dev/null 2>&1; then
-              echo "Canvas up after ${i}s"
-              exit 0
-            fi
-            sleep 1
-          done
-          echo "::error::Canvas did not start in 30s"
-          cat canvas.log || true
-          exit 1
-
-      - name: Run Playwright E2E tests
-        if: needs.detect-changes.outputs.chat == 'true'
-        working-directory: canvas
-        run: |
-          export E2E_PLATFORM_URL="http://127.0.0.1:${PLATFORM_PORT}"
-          export E2E_DATABASE_URL="${DATABASE_URL}"
-          npx playwright test e2e/chat-desktop.spec.ts e2e/chat-mobile.spec.ts
-
-      - name: Dump platform log on failure
-        if: failure() && needs.detect-changes.outputs.chat == 'true'
-        run: cat workspace-server/platform.log || true
-
-      - name: Dump canvas log on failure
-        if: failure() && needs.detect-changes.outputs.chat == 'true'
-        run: cat canvas/canvas.log || true
-
-      - name: Upload Playwright report
-        if: failure() && needs.detect-changes.outputs.chat == 'true'
-        uses: actions/upload-artifact@v3.2.2
-        with:
-          name: playwright-report-chat
-          path: canvas/playwright-report/
-
-      - name: Stop canvas
-        if: always() && needs.detect-changes.outputs.chat == 'true'
-        run: |
-          if [ -f canvas/canvas.pid ]; then
-            kill "$(cat canvas/canvas.pid)" 2>/dev/null || true
-          fi
-
-      - name: Stop platform
-        if: always() && needs.detect-changes.outputs.chat == 'true'
-        run: |
-          if [ -f workspace-server/platform.pid ]; then
-            kill "$(cat workspace-server/platform.pid)" 2>/dev/null || true
-          fi
-
-      - name: Stop service containers
-        if: always() && needs.detect-changes.outputs.chat == 'true'
-        run: |
-          docker rm -f "$PG_CONTAINER" 2>/dev/null || true
-          docker rm -f "$REDIS_CONTAINER" 2>/dev/null || true

.staging-trigger

@@ -1 +1 @@
-staging trigger
+staging trigger 2026-05-14T17:35:02Z

_ci_trigger.txt

@@ -0,0 +1 @@
+trigger

canvas/e2e/chat-desktop.spec.ts

@@ -1,173 +0,0 @@
-import { test, expect } from "@playwright/test";
-import { startEchoRuntime } from "./fixtures/echo-runtime";
-import { seedWorkspace, startHeartbeat, cleanupWorkspace } from "./fixtures/chat-seed";
-
-
-test.describe("Desktop ChatTab", () => {
-  let cleanup: () => Promise<void> = async () => {};
-  let workspaceId = "";
-  let workspaceName = "";
-
-  test.beforeAll(async () => {
-    const echo = await startEchoRuntime();
-    const ws = await seedWorkspace(echo.baseURL);
-    workspaceId = ws.id;
-    workspaceName = ws.name;
-    const stopHeartbeat = startHeartbeat(ws.id, ws.authToken);
-
-    cleanup = async () => {
-      stopHeartbeat();
-      await echo.stop();
-    };
-  });
-
-  test.afterAll(async () => {
-    await cleanupWorkspace(workspaceId);
-    await cleanup();
-  });
-
-  test.beforeEach(async ({ page }) => {
-    await page.setViewportSize({ width: 1280, height: 800 });
-    await page.goto("/");
-    await page.waitForSelector(".react-flow__node", { timeout: 10_000 });
-    // Dismiss onboarding guide if present.
-    const skipGuide = page.getByText("Skip guide");
-    if (await skipGuide.isVisible().catch(() => false)) {
-      await skipGuide.click();
-    }
-    // Click the workspace node by its exact name label.
-    await page.getByText(workspaceName, { exact: true }).first().click();
-    // Wait for the side panel chat tab to be clickable, then click it.
-    await page.locator('#tab-chat').click();
-    await page.waitForSelector("[data-testid='chat-panel']", { timeout: 5_000 });
-    // Wait for the workspace status to flip to online and the textarea to be enabled.
-    await expect(page.locator("textarea").first()).toBeEnabled({ timeout: 15_000 });
-  });
-
-  test("chat panel loads without error", async ({ page }) => {
-    const hasEmptyState = await page.getByText("Send a message to start chatting.").isVisible().catch(() => false);
-    const hasHistory = await page.locator("[data-testid='chat-panel']").locator("div").count() > 3;
-    expect(hasEmptyState || hasHistory).toBeTruthy();
-  });
-
-  test("send text message and receive echo response", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("What is the weather?");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("What is the weather?")).toBeVisible({ timeout: 5_000 });
-    await expect(page.getByText("Echo: What is the weather?")).toBeVisible({ timeout: 15_000 });
-  });
-
-  test("history persists across reload", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Persistence test");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Echo: Persistence test")).toBeVisible({ timeout: 15_000 });
-
-    await page.reload();
-    await page.waitForSelector(".react-flow__node", { timeout: 10_000 });
-    await page.getByText(workspaceName, { exact: true }).first().click();
-    await page.locator('#tab-chat').click();
-    await page.waitForSelector("[data-testid='chat-panel']", { timeout: 5_000 });
-    // Wait for the workspace status to flip to online and the textarea to be enabled.
-    await expect(page.locator("textarea").first()).toBeEnabled({ timeout: 15_000 });
-
-    await expect(page.getByText("Persistence test", { exact: true })).toBeVisible({ timeout: 5_000 });
-    await expect(page.getByText("Echo: Persistence test")).toBeVisible({ timeout: 5_000 });
-  });
-
-  test("file attachment round-trip", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Please read this file");
-
-    const fileInput = page.locator("[data-testid='chat-panel'] input[type='file']").first();
-    await fileInput.setInputFiles({
-      name: "test.txt",
-      mimeType: "text/plain",
-      buffer: Buffer.from("secret content abc123"),
-    });
-
-    await expect(page.getByText("test.txt")).toBeVisible({ timeout: 3_000 });
-
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Echo: Please read this file")).toBeVisible({ timeout: 15_000 });
-  });
-
-  test("activity log appears during send", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Trigger activity");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    // Activity log container should appear during the send flow.
-    await expect(page.locator("[data-testid='activity-log']").first()).toBeVisible({ timeout: 10_000 }).catch(() => {
-      // Activity log may not be present in all layouts.
-    });
-  });
-});
-
-test.describe("Desktop ChatTab — Markdown rendering", () => {
-  let cleanup: () => Promise<void> = async () => {};
-  let workspaceId = "";
-  let workspaceName = "";
-
-  test.beforeAll(async () => {
-    const echo = await startEchoRuntime();
-    const ws = await seedWorkspace(echo.baseURL);
-    workspaceId = ws.id;
-    workspaceName = ws.name;
-    const stopHeartbeat = startHeartbeat(ws.id, ws.authToken);
-
-    cleanup = async () => {
-      stopHeartbeat();
-      await echo.stop();
-    };
-  });
-
-  test.afterAll(async () => {
-    await cleanupWorkspace(workspaceId);
-    await cleanup();
-  });
-
-  test.beforeEach(async ({ page }) => {
-    await page.setViewportSize({ width: 1280, height: 800 });
-    await page.goto("/");
-    await page.waitForSelector(".react-flow__node", { timeout: 10_000 });
-    const skipGuide2 = page.getByText("Skip guide");
-    if (await skipGuide2.isVisible().catch(() => false)) {
-      await skipGuide2.click();
-    }
-    await page.getByText(workspaceName, { exact: true }).first().click();
-    await page.locator('#tab-chat').click();
-    await page.waitForSelector("[data-testid='chat-panel']", { timeout: 5_000 });
-    // Wait for the workspace status to flip to online and the textarea to be enabled.
-    await expect(page.locator("textarea").first()).toBeEnabled({ timeout: 15_000 });
-  });
-
-  test("code block renders <pre>", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("```js\nconst x = 1;\n```");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Echo: ```js")).toBeVisible({ timeout: 15_000 });
-
-    const pre = page.locator("pre").first();
-    await expect(pre).toBeVisible({ timeout: 5_000 });
-    await expect(pre).toContainText("const x = 1;");
-  });
-
-  test("table renders <table>", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("| A | B |\n|---|---|\n| 1 | 2 |");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Echo: | A | B |")).toBeVisible({ timeout: 15_000 });
-
-    const table = page.locator("table").first();
-    await expect(table).toBeVisible({ timeout: 5_000 });
-    await expect(table).toContainText("A");
-    await expect(table).toContainText("1");
-  });
-});

canvas/e2e/chat-mobile.spec.ts

@@ -1,97 +0,0 @@
-import { test, expect } from "@playwright/test";
-import { startEchoRuntime } from "./fixtures/echo-runtime";
-import { seedWorkspace, startHeartbeat, cleanupWorkspace } from "./fixtures/chat-seed";
-
-
-test.describe("MobileChat", () => {
-  let cleanup: () => Promise<void> = async () => {};
-  let workspaceId = "";
-
-  test.beforeAll(async () => {
-    const echo = await startEchoRuntime();
-    const ws = await seedWorkspace(echo.baseURL);
-    workspaceId = ws.id;
-    const stopHeartbeat = startHeartbeat(ws.id, ws.authToken);
-
-    cleanup = async () => {
-      stopHeartbeat();
-      await echo.stop();
-    };
-  });
-
-  test.afterAll(async () => {
-    await cleanupWorkspace(workspaceId);
-    await cleanup();
-  });
-
-  test.beforeEach(async ({ page }) => {
-    await page.setViewportSize({ width: 375, height: 812 });
-    // Navigate directly to the mobile chat view.
-    await page.goto(`/?m=chat&a=${workspaceId}`);
-    await page.waitForSelector("[data-testid='chat-panel']", { timeout: 10_000 });
-    // Wait for the workspace status to flip to online and the textarea to be enabled.
-    await expect(page.locator("textarea").first()).toBeEnabled({ timeout: 15_000 });
-    // Dismiss onboarding guide if present.
-    const skipGuide = page.getByText("Skip guide");
-    if (await skipGuide.isVisible().catch(() => false)) {
-      await skipGuide.click();
-    }
-  });
-
-  test("chat panel loads without error", async ({ page }) => {
-    const hasEmptyState = await page.getByText("Send a message to start chatting.").isVisible().catch(() => false);
-    const hasHistory = await page.locator("[data-testid='chat-panel']").locator("div").count() > 3;
-    expect(hasEmptyState || hasHistory).toBeTruthy();
-  });
-
-  test("send text message and receive echo response", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Mobile test message");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Mobile test message")).toBeVisible({ timeout: 5_000 });
-    await expect(page.getByText("Echo: Mobile test message")).toBeVisible({ timeout: 15_000 });
-  });
-
-  test("history persists across reload", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Mobile persistence");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    await expect(page.getByText("Echo: Mobile persistence")).toBeVisible({ timeout: 15_000 });
-
-    await page.reload();
-    await page.waitForSelector("[data-testid='chat-panel']", { timeout: 10_000 });
-
-    await expect(page.getByText("Mobile persistence", { exact: true })).toBeVisible({ timeout: 5_000 });
-    await expect(page.getByText("Echo: Mobile persistence")).toBeVisible({ timeout: 5_000 });
-  });
-
-  test("composer auto-grows with multi-line text", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    const initialHeight = await textarea.evaluate((el: HTMLElement) => el.offsetHeight);
-
-    await textarea.fill("Line 1\nLine 2\nLine 3\nLine 4\nLine 5");
-    await page.waitForTimeout(300);
-
-    const grownHeight = await textarea.evaluate((el: HTMLElement) => el.offsetHeight);
-    expect(grownHeight).toBeGreaterThan(initialHeight);
-  });
-
-  test("file attachment in mobile chat", async ({ page }) => {
-    const textarea = page.locator("textarea").first();
-    await textarea.fill("Mobile file test");
-
-    const fileInput = page.locator("[data-testid='chat-panel'] input[type='file']").first();
-    await fileInput.setInputFiles({
-      name: "mobile.txt",
-      mimeType: "text/plain",
-      buffer: Buffer.from("mobile secret"),
-    });
-
-    await expect(page.getByText("mobile.txt")).toBeVisible({ timeout: 3_000 });
-
-    await page.getByRole("button", { name: /Send/ }).first().click();
-    await expect(page.getByText("Echo: Mobile file test")).toBeVisible({ timeout: 15_000 });
-  });
-});

canvas/e2e/fixtures/chat-seed.ts

@@ -1,187 +0,0 @@
-/**
- * E2E seed fixture for chat tests.
- *
- * Creates an external workspace via the workspace-server API, extracts the
- * auto-minted auth token, then overrides the DB row so it appears "online"
- * with an echo-runtime URL.  External runtime is used because the health
- * sweep skips Docker checks for external workspaces; we keep the workspace
- * alive with periodic heartbeats.
- */
-
-import { randomUUID } from "node:crypto";
-
-const PLATFORM_URL = process.env.E2E_PLATFORM_URL ?? "http://localhost:8080";
-
-export interface SeededWorkspace {
-  id: string;
-  name: string;
-  agentURL: string;
-  authToken: string;
-}
-
-/**
- * Create an external workspace and wire it to the echo runtime.
- */
-export async function seedWorkspace(echoURL: string): Promise<SeededWorkspace> {
-  // 1. Create external workspace (no URL — platform will mint an auth token).
-  const runId = Math.random().toString(36).slice(2, 8);
-  const wsName = `Chat E2E Agent ${runId}`;
-  const createRes = await fetch(`${PLATFORM_URL}/workspaces`, {
-    method: "POST",
-    headers: { "Content-Type": "application/json" },
-    body: JSON.stringify({ name: wsName, tier: 1, external: true, runtime: "external" }),
-  });
-  if (!createRes.ok) {
-    const text = await createRes.text();
-    throw new Error(`Failed to create workspace: ${createRes.status} ${text}`);
-  }
-  const ws = (await createRes.json()) as {
-    id: string;
-    name: string;
-    connection?: { auth_token?: string };
-  };
-  const authToken = ws.connection?.auth_token;
-  if (!authToken) {
-    throw new Error("Workspace created but no auth_token returned");
-  }
-
-  // 2. Direct DB update: mark online + point url at echo runtime.
-  //    The platform blocks loopback URLs at the API layer (SSRF guard),
-  //    so we bypass via psql for local E2E.
-  const dbUrl = process.env.E2E_DATABASE_URL;
-  if (!dbUrl) {
-    throw new Error("E2E_DATABASE_URL must be set for DB seeding");
-  }
-  const pgRegex = /postgres:\/\/([^:]+):([^@]+)@([^:]+):(\d+)\/([^?]+)/;
-  const m = dbUrl.match(pgRegex);
-  if (!m) {
-    throw new Error(`Cannot parse E2E_DATABASE_URL: ${dbUrl}`);
-  }
-  const [, user, pass, host, port, db] = m;
-
-  // Pre-seed a platform_inbound_secret so chat file uploads don't trigger
-  // the lazy-heal 503 "retry in 30 s" path on first use.
-  const inboundSecret = Array.from({ length: 43 }, () =>
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"[
-      Math.floor(Math.random() * 64)
-    ],
-  ).join("");
-
-  const psql = [
-    `PGPASSWORD=${pass} psql`,
-    `-h ${host} -p ${port} -U ${user} -d ${db}`,
-    `-c "UPDATE workspaces SET status = 'online', url = '${echoURL}', platform_inbound_secret = '${inboundSecret}' WHERE id = '${ws.id}'"`,
-  ].join(" ");
-
-  const { execSync } = await import("node:child_process");
-  try {
-    execSync(psql, { stdio: "pipe", timeout: 30_000 });
-  } catch (err) {
-    throw new Error(`DB update failed: ${err}`);
-  }
-
-  return { id: ws.id, name: wsName, agentURL: echoURL, authToken };
-}
-
-/**
- * Start a heartbeat interval that keeps an external workspace alive.
- * Returns a stop function.
- */
-export function startHeartbeat(
-  workspaceId: string,
-  authToken: string,
-  intervalMs = 30_000,
-): () => void {
-  const send = () => {
-    fetch(`${PLATFORM_URL}/registry/heartbeat`, {
-      method: "POST",
-      headers: {
-        "Content-Type": "application/json",
-        Authorization: `Bearer ${authToken}`,
-      },
-      body: JSON.stringify({
-        workspace_id: workspaceId,
-        error_rate: 0,
-        sample_error: "",
-        active_tasks: 0,
-        current_task: "",
-        uptime_seconds: 0,
-      }),
-    }).catch(() => {});
-  };
-
-  // Send immediately so the first heartbeat lands before the stale sweep.
-  send();
-  const timer = setInterval(send, intervalMs);
-
-  return () => clearInterval(timer);
-}
-
-/**
- * Seed chat-history rows for a workspace.
- */
-export async function seedChatHistory(
-  workspaceId: string,
-  messages: Array<{ role: "user" | "agent"; content: string }>,
-): Promise<void> {
-  const dbUrl = process.env.E2E_DATABASE_URL;
-  if (!dbUrl) return;
-
-  const pgRegex = /postgres:\/\/([^:]+):([^@]+)@([^:]+):(\d+)\/([^?]+)/;
-  const m = dbUrl.match(pgRegex);
-  if (!m) return;
-  const [, user, pass, host, port, db] = m;
-
-  const values = messages
-    .map(
-      (msg, i) =>
-        `('${randomUUID()}', '${workspaceId}', '${msg.role}', '${msg.content.replace(/'/g, "''")}', NOW() - INTERVAL '${messages.length - i} seconds')`,
-    )
-    .join(",");
-
-  const sql = `INSERT INTO chat_messages (id, workspace_id, role, content, created_at) VALUES ${values};`;
-
-  const { execSync } = await import("node:child_process");
-  const psql = `PGPASSWORD=${pass} psql -h ${host} -p ${port} -U ${user} -d ${db} -c "${sql}"`;
-  execSync(psql, { stdio: "pipe", timeout: 10_000 });
-}
-
-/**
- * Delete a seeded workspace row directly from the DB.
- * Uses psql (same credentials as seedWorkspace) so we bypass any
- * workspace-server side-effects (container stop, cascade cleanup, etc.)
- * that can race or 500 on external workspaces.
- */
-export async function cleanupWorkspace(workspaceId: string): Promise<void> {
-  const dbUrl = process.env.E2E_DATABASE_URL;
-  if (!dbUrl) return;
-
-  const pgRegex = /postgres:\/\/([^:]+):([^@]+)@([^:]+):(\d+)\/([^?]+)/;
-  const m = dbUrl.match(pgRegex);
-  if (!m) return;
-  const [, user, pass, host, port, db] = m;
-
-  const psql = `PGPASSWORD=${pass} psql -h ${host} -p ${port} -U ${user} -d ${db} -c "DELETE FROM workspaces WHERE id = '${workspaceId}'"`;
-
-  const { execSync } = await import("node:child_process");
-  try {
-    execSync(psql, { stdio: "pipe", timeout: 30_000 });
-  } catch {
-    // Best-effort cleanup; don't fail the test suite if the row is already gone.
-  }
-}
-
-/**
- * Mint a workspace auth token so the canvas can make authenticated API
- * calls (WorkspaceAuth middleware).
- */
-export async function mintTestToken(workspaceId: string): Promise<string> {
-  const res = await fetch(
-    `${PLATFORM_URL}/admin/workspaces/${workspaceId}/test-token`,
-  );
-  if (!res.ok) {
-    throw new Error(`Failed to mint test token: ${res.status}`);
-  }
-  const data = (await res.json()) as { auth_token: string };
-  return data.auth_token;
-}

canvas/e2e/fixtures/echo-runtime.ts

@@ -1,180 +0,0 @@
-/**
- * Minimal A2A echo runtime for E2E tests.
- *
- * Listens on an ephemeral port, receives A2A JSON-RPC `message/send`
- * requests, and returns a response with the original text echoed back.
- * Also implements the workspace-side chat upload ingest endpoint so
- * file-attachment E2E can exercise the full upload → send → echo
- * round-trip.
- *
- * Usage (inside test fixture):
- *   const echo = await startEchoRuntime();
- *   // ... seed workspace with agent_url pointing to echo.baseURL ...
- *   echo.stop();
- */
-
-import { createServer, type Server } from "node:http";
-
-export interface EchoRuntime {
-  baseURL: string;
-  stop: () => Promise<void>;
-  lastRequest: { method: string; text: string; files: unknown[] } | null;
-}
-
-/** Parse a minimal multipart body and extract the first file's name + content. */
-function parseMultipart(body: Buffer): { name: string; mimeType: string; content: Buffer } | null {
-  // Find the boundary line (first line starting with "--").
-  const str = body.toString("binary");
-  const firstDash = str.indexOf("--");
-  if (firstDash === -1) return null;
-  const eol = str.indexOf("\r\n", firstDash);
-  if (eol === -1) return null;
-  const boundary = str.slice(firstDash + 2, eol);
-  const boundaryMarker = "\r\n--" + boundary;
-
-  // Find the first part that has a filename in Content-Disposition.
-  let pos = eol + 2;
-  while (pos < str.length) {
-    const nextBoundary = str.indexOf(boundaryMarker, pos);
-    if (nextBoundary === -1) break;
-    const part = str.slice(pos, nextBoundary);
-
-    const cdMatch = part.match(/Content-Disposition:[^\r\n]*filename="([^"]+)"/i);
-    if (cdMatch) {
-      const name = cdMatch[1];
-      const ctMatch = part.match(/Content-Type:\s*([^\r\n]+)/i);
-      const mimeType = ctMatch ? ctMatch[1].trim() : "application/octet-stream";
-      // Body starts after the first double-CRLF in the part.
-      const bodyStart = part.indexOf("\r\n\r\n");
-      if (bodyStart !== -1) {
-        // Extract the raw bytes (not the string) so binary is safe.
-        const headerBytes = Buffer.byteLength(part.slice(0, bodyStart + 4), "binary");
-        const partStartInBody = Buffer.byteLength(str.slice(0, pos + bodyStart + 4), "binary");
-        const partEndInBody = Buffer.byteLength(str.slice(0, nextBoundary), "binary");
-        const content = body.subarray(partStartInBody, partEndInBody);
-        return { name, mimeType, content };
-      }
-    }
-    pos = nextBoundary + boundaryMarker.length;
-    // Skip trailing "--" (end marker) or CRLF.
-    if (str.slice(pos, pos + 2) === "--") break;
-    if (str.slice(pos, pos + 2) === "\r\n") pos += 2;
-  }
-  return null;
-}
-
-export async function startEchoRuntime(): Promise<EchoRuntime> {
-  let lastRequest: EchoRuntime["lastRequest"] = null;
-
-  const server = createServer((req, res) => {
-    // CORS: allow the canvas origin (localhost:3000) to call us.
-    res.setHeader("Access-Control-Allow-Origin", "*");
-    res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS");
-    res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
-
-    if (req.method === "OPTIONS") {
-      res.writeHead(204);
-      res.end();
-      return;
-    }
-
-    const url = req.url ?? "/";
-
-    // Workspace-side chat upload ingest (RFC #2312).
-    if (url === "/internal/chat/uploads/ingest" && req.method === "POST") {
-      const chunks: Buffer[] = [];
-      req.on("data", (chunk: Buffer) => chunks.push(chunk));
-      req.on("end", () => {
-        const body = Buffer.concat(chunks);
-        const file = parseMultipart(body);
-        if (!file) {
-          res.writeHead(400);
-          res.end(JSON.stringify({ error: "no files field" }));
-          return;
-        }
-        const sanitized = file.name.replace(/[^a-zA-Z0-9._\-]/g, "_").replace(/ /g, "_");
-        const prefix = Array.from({ length: 32 }, () =>
-          Math.floor(Math.random() * 16).toString(16),
-        ).join("");
-        const response = {
-          files: [
-            {
-              uri: `workspace:/workspace/.molecule/chat-uploads/${prefix}-${sanitized}`,
-              name: sanitized,
-              mimeType: file.mimeType,
-              size: file.content.length,
-            },
-          ],
-        };
-        res.setHeader("Content-Type", "application/json");
-        res.writeHead(200);
-        res.end(JSON.stringify(response));
-      });
-      return;
-    }
-
-    // Default: A2A JSON-RPC handler.
-    let body = "";
-    req.setEncoding("utf8");
-    req.on("data", (chunk: string) => {
-      body += chunk;
-    });
-    req.on("end", () => {
-      res.setHeader("Content-Type", "application/json");
-      try {
-        const rpc = JSON.parse(body);
-        const msg = rpc.params?.message;
-        const textParts =
-          msg?.parts
-            ?.filter((p: { kind?: string; text?: string }) => p.kind === "text")
-            .map((p: { text?: string }) => p.text)
-            .filter(Boolean) ?? [];
-        const fileParts =
-          msg?.parts?.filter((p: { kind?: string }) => p.kind === "file") ?? [];
-        const text = textParts.join("\n");
-
-        lastRequest = {
-          method: rpc.method ?? "unknown",
-          text,
-          files: fileParts,
-        };
-
-        const replyText = text
-          ? `Echo: ${text}`
-          : fileParts.length > 0
-            ? "Echo: received your file(s)."
-            : "Echo: hello";
-
-        const response = {
-          jsonrpc: "2.0",
-          id: rpc.id ?? null,
-          result: {
-            parts: [{ kind: "text", text: replyText }],
-          },
-        };
-
-        res.writeHead(200);
-        res.end(JSON.stringify(response));
-      } catch {
-        res.writeHead(400);
-        res.end(JSON.stringify({ error: "invalid json" }));
-      }
-    });
-  });
-
-  await new Promise<void>((resolve) => server.listen(0, "127.0.0.1", resolve));
-  const address = server.address();
-  const port = typeof address === "object" && address ? address.port : 0;
-  const baseURL = `http://127.0.0.1:${port}`;
-
-  return {
-    baseURL,
-    stop: () =>
-      new Promise((resolve) => {
-        server.close(() => resolve(undefined));
-      }),
-    get lastRequest() {
-      return lastRequest;
-    },
-  };
-}

canvas/playwright.config.ts

@@ -5,7 +5,6 @@ export default defineConfig({
   timeout: 30_000,
   expect: { timeout: 10_000 },
   fullyParallel: false,
-  workers: 1,
   retries: 0,
   use: {
     baseURL: "http://localhost:3000",

canvas/src/components/ThemeToggle.tsx

@@ -62,12 +62,21 @@ export function ThemeToggle({ className = "" }: { className?: string }) {
       }
       setTheme(OPTIONS[next].value);
       // Move focus to the new button so arrow-key navigation is continuous.
-      // Query is already scoped to radiogroup so no child-combinator needed;
-      // avoids accidentally focusing unrelated [role=radio] elements
+      // Use direct-child query to scope strictly to this radiogroup's buttons
+      // and avoid accidentally focusing unrelated [role=radio] elements
       // elsewhere in the DOM (e.g. React Flow canvas nodes).
+      // Guard: skip focus if the current target is no longer in the document
+      // (e.g. React StrictMode double-invokes handlers during re-render).
+      if (!e.currentTarget.isConnected) return;
       const radiogroup = e.currentTarget.closest("[role=radiogroup]") as HTMLElement | null;
-      const btns = radiogroup?.querySelectorAll<HTMLButtonElement>("[role=radio]");
-      btns?.[next]?.focus();
+      if (!radiogroup) return;
+      // Use children[] instead of querySelectorAll("> [role=radio]") to avoid
+      // jsdom's child-combinator selector parsing issues in test environments.
+      const btns = Array.from(radiogroup.children).filter(
+        (el): el is HTMLButtonElement =>
+          el.tagName === "BUTTON" && el.getAttribute("role") === "radio"
+      );
+      if (next < btns.length) btns[next]?.focus();
     },
     []
   );

canvas/src/components/__tests__/ThemeToggle.test.tsx

@@ -24,8 +24,12 @@ vi.mock("@/lib/theme-provider", () => ({
   })),
 }));
 
+// Wrap cleanup in act() so any pending React state updates (e.g. from
+// keyDown handlers that call setTheme) flush before DOM unmount. Without
+// this, cleanup() can race against pending renders and cause INDEX_SIZE_ERR
+// when the handleKeyDown callback tries to query the DOM mid-teardown.
 afterEach(() => {
-  cleanup();
+  act(() => { cleanup(); });
   vi.clearAllMocks();
 });
 
@@ -146,7 +150,7 @@ describe("ThemeToggle — keyboard navigation (WCAG 2.1.1 / ARIA radiogroup)", (
     const radios = screen.getAllByRole("radio");
     // dark (index 2) is current; ArrowRight should wrap to light (index 0)
     act(() => { radios[2].focus(); });
-    fireEvent.keyDown(radios[2], { key: "ArrowRight" });
+    act(() => { fireEvent.keyDown(radios[2], { key: "ArrowRight" }); });
     expect(mockSetTheme).toHaveBeenCalledWith("light");
   });
 
@@ -160,7 +164,7 @@ describe("ThemeToggle — keyboard navigation (WCAG 2.1.1 / ARIA radiogroup)", (
     const radios = screen.getAllByRole("radio");
     // light (index 0) is current; ArrowLeft should go to dark (index 2)
     act(() => { radios[0].focus(); });
-    fireEvent.keyDown(radios[0], { key: "ArrowLeft" });
+    act(() => { fireEvent.keyDown(radios[0], { key: "ArrowLeft" }); });
     expect(mockSetTheme).toHaveBeenCalledWith("dark");
   });
 
@@ -174,7 +178,7 @@ describe("ThemeToggle — keyboard navigation (WCAG 2.1.1 / ARIA radiogroup)", (
     const radios = screen.getAllByRole("radio");
     // light (index 0) is current; ArrowDown should go to system (index 1)
     act(() => { radios[0].focus(); });
-    fireEvent.keyDown(radios[0], { key: "ArrowDown" });
+    act(() => { fireEvent.keyDown(radios[0], { key: "ArrowDown" }); });
     expect(mockSetTheme).toHaveBeenCalledWith("system");
   });
 
@@ -187,7 +191,7 @@ describe("ThemeToggle — keyboard navigation (WCAG 2.1.1 / ARIA radiogroup)", (
     render(<ThemeToggle />);
     const radios = screen.getAllByRole("radio");
     act(() => { radios[2].focus(); });
-    fireEvent.keyDown(radios[2], { key: "Home" });
+    act(() => { fireEvent.keyDown(radios[2], { key: "Home" }); });
     expect(mockSetTheme).toHaveBeenCalledWith("light");
   });
 
@@ -200,14 +204,14 @@ describe("ThemeToggle — keyboard navigation (WCAG 2.1.1 / ARIA radiogroup)", (
     render(<ThemeToggle />);
     const radios = screen.getAllByRole("radio");
     act(() => { radios[0].focus(); });
-    fireEvent.keyDown(radios[0], { key: "End" });
+    act(() => { fireEvent.keyDown(radios[0], { key: "End" }); });
     expect(mockSetTheme).toHaveBeenCalledWith("dark");
   });
 
   it("does nothing on unrelated keys", () => {
     render(<ThemeToggle />);
     const radios = screen.getAllByRole("radio");
-    fireEvent.keyDown(radios[0], { key: "Enter" });
+    act(() => { fireEvent.keyDown(radios[0], { key: "Enter" }); });
     expect(mockSetTheme).not.toHaveBeenCalled();
   });
 });

canvas/src/components/mobile/MobileChat.tsx

@@ -6,21 +6,21 @@
 // attachments, no A2A topology overlay, no conversation tracing.
 
 import { useEffect, useMemo, useRef, useState } from "react";
-import ReactMarkdown from "react-markdown";
-import remarkGfm from "remark-gfm";
 
+import { api } from "@/lib/api";
 import { useCanvasStore } from "@/store/canvas";
-import { type ChatAttachment, type ChatMessage, createMessage } from "@/components/tabs/chat/types";
-import {
-  useChatHistory,
-  useChatSend,
-  useChatSocket,
-} from "@/components/tabs/chat/hooks";
 
 import { toMobileAgent } from "./components";
 import { MOBILE_FONT_MONO, MOBILE_FONT_SANS, usePalette } from "./palette";
 import { Icons, StatusDot, TierChip } from "./primitives";
 
+interface ChatMessage {
+  id: string;
+  role: "user" | "agent" | "system";
+  text: string;
+  ts: string;
+}
+
 const formatStoredTimestamp = (iso: string): string => {
   const d = new Date(iso);
   if (isNaN(d.getTime())) return "";
@@ -29,171 +29,16 @@ const formatStoredTimestamp = (iso: string): string => {
 
 type SubTab = "my" | "a2a";
 
-function MarkdownBubble({
-  children,
-  dark,
-  accent,
-}: {
-  children: string;
-  dark: boolean;
-  accent: string;
-}) {
-  const codeBg = dark ? "rgba(255,255,255,0.08)" : "rgba(0,0,0,0.06)";
-  const codeBlockBg = dark ? "#1a1a1a" : "#f5f5f0";
-  const linkColor = accent;
-  const quoteBorder = dark ? "rgba(255,250,240,0.15)" : "rgba(40,30,20,0.15)";
-
-  return (
-    <ReactMarkdown
-      remarkPlugins={[remarkGfm]}
-      components={{
-        p: ({ children }) => (
-          <div style={{ margin: "2px 0", lineHeight: "inherit" }}>{children}</div>
-        ),
-        a: ({ href, children }) => (
-          <a
-            href={href}
-            target="_blank"
-            rel="noopener noreferrer"
-            style={{ color: linkColor, textDecoration: "underline" }}
-          >
-            {children}
-          </a>
-        ),
-        pre: ({ children }) => (
-          <pre
-            style={{
-              background: codeBlockBg,
-              padding: "8px 10px",
-              borderRadius: 8,
-              overflow: "auto",
-              fontSize: 12,
-              lineHeight: 1.5,
-              fontFamily: MOBILE_FONT_MONO,
-              margin: "4px 0",
-            }}
-          >
-            {children}
-          </pre>
-        ),
-        code: ({ children, className }) => {
-          const isBlock = className != null && String(className).length > 0;
-          if (isBlock) {
-            return (
-              <code style={{ fontFamily: MOBILE_FONT_MONO, fontSize: 12 }}>
-                {children}
-              </code>
-            );
-          }
-          return (
-            <code
-              style={{
-                background: codeBg,
-                padding: "1px 4px",
-                borderRadius: 4,
-                fontSize: 13,
-                fontFamily: MOBILE_FONT_MONO,
-              }}
-            >
-              {children}
-            </code>
-          );
-        },
-        ul: ({ children }) => (
-          <ul style={{ margin: "4px 0", paddingLeft: 18, listStyle: "disc" }}>
-            {children}
-          </ul>
-        ),
-        ol: ({ children }) => (
-          <ol style={{ margin: "4px 0", paddingLeft: 18, listStyle: "decimal" }}>
-            {children}
-          </ol>
-        ),
-        li: ({ children }) => <li style={{ margin: "2px 0" }}>{children}</li>,
-        strong: ({ children }) => (
-          <strong style={{ fontWeight: 600 }}>{children}</strong>
-        ),
-        em: ({ children }) => <em style={{ fontStyle: "italic" }}>{children}</em>,
-        h1: ({ children }) => (
-          <div style={{ fontSize: 16, fontWeight: 700, margin: "4px 0" }}>{children}</div>
-        ),
-        h2: ({ children }) => (
-          <div style={{ fontSize: 15, fontWeight: 700, margin: "4px 0" }}>{children}</div>
-        ),
-        h3: ({ children }) => (
-          <div style={{ fontSize: 14, fontWeight: 700, margin: "4px 0" }}>{children}</div>
-        ),
-        h4: ({ children }) => (
-          <div style={{ fontSize: 14, fontWeight: 600, margin: "4px 0" }}>{children}</div>
-        ),
-        h5: ({ children }) => (
-          <div style={{ fontSize: 13, fontWeight: 600, margin: "4px 0" }}>{children}</div>
-        ),
-        h6: ({ children }) => (
-          <div style={{ fontSize: 13, fontWeight: 600, margin: "4px 0" }}>{children}</div>
-        ),
-        blockquote: ({ children }) => (
-          <blockquote
-            style={{
-              borderLeft: `2px solid ${quoteBorder}`,
-              margin: "4px 0",
-              paddingLeft: 8,
-              opacity: 0.85,
-            }}
-          >
-            {children}
-          </blockquote>
-        ),
-        hr: () => (
-          <hr
-            style={{
-              border: "none",
-              borderTop: `0.5px solid ${quoteBorder}`,
-              margin: "6px 0",
-            }}
-          />
-        ),
-        table: ({ children }) => (
-          <table
-            style={{
-              borderCollapse: "collapse",
-              fontSize: 13,
-              margin: "4px 0",
-              width: "100%",
-            }}
-          >
-            {children}
-          </table>
-        ),
-        thead: ({ children }) => <thead style={{ fontWeight: 600 }}>{children}</thead>,
-        th: ({ children }) => (
-          <th
-            style={{
-              border: `0.5px solid ${quoteBorder}`,
-              padding: "4px 6px",
-              textAlign: "left",
-            }}
-          >
-            {children}
-          </th>
-        ),
-        td: ({ children }) => (
-          <td
-            style={{
-              border: `0.5px solid ${quoteBorder}`,
-              padding: "4px 6px",
-            }}
-          >
-            {children}
-          </td>
-        ),
-      }}
-    >
-      {children}
-    </ReactMarkdown>
-  );
+interface A2AResponseShape {
+  result?: {
+    parts?: Array<{ kind?: string; text?: string }>;
+  };
+  error?: { message?: string };
 }
 
+const formatTime = (date: Date) =>
+  date.toLocaleTimeString([], { hour: "numeric", minute: "2-digit" });
+
 export function MobileChat({
   agentId,
   dark,
@@ -204,40 +49,37 @@ export function MobileChat({
   onBack: () => void;
 }) {
   const p = usePalette(dark);
+  // Selecting `nodes` stably avoids the `.find()` anti-pattern that
+  // creates a new return value on every store update (React error #185).
   const nodes = useCanvasStore((s) => s.nodes);
   const node = useMemo(() => nodes.find((n) => n.id === agentId), [nodes, agentId]);
+  // Bootstrap from the canvas store's per-workspace message buffer so the
+  // user sees their prior thread on entry. The store is updated by the
+  // socket → ChatTab flows the desktop runs; on mobile we read from the
+  // same buffer to keep state coherent across viewports.
+  // NOTE: selector returns undefined (stable) — do NOT use ?? [] here,
+  // that creates a new [] reference on every store update when the key is
+  // absent, causing infinite re-render (React error #185).
+  const storedMessages = useCanvasStore((s) => s.agentMessages[agentId]);
+  const [messages, setMessages] = useState<ChatMessage[]>(() =>
+    (storedMessages ?? []).map((m) => ({
+      id: m.id,
+      role: "agent",
+      text: m.content,
+      ts: formatStoredTimestamp(m.timestamp),
+    })),
+  );
   const [draft, setDraft] = useState("");
   const [tab, setTab] = useState<SubTab>("my");
+  const [sending, setSending] = useState(false);
+  const [error, setError] = useState<string | null>(null);
   const scrollRef = useRef<HTMLDivElement>(null);
+  // Synchronous re-entry guard. `setSending(true)` schedules a state
+  // update but doesn't flush before a second tap can fire send() — a ref
+  // mirrors the desktop ChatTab pattern (sendInFlightRef) and closes the
+  // double-send race a stale `sending` lets through.
+  const sendInFlightRef = useRef(false);
   const composerRef = useRef<HTMLTextAreaElement>(null);
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [pendingFiles, setPendingFiles] = useState<File[]>([]);
-
-  const {
-    messages,
-    loading: historyLoading,
-    loadError: historyError,
-    loadInitial,
-    appendMessageDeduped,
-  } = useChatHistory(agentId);
-
-  const {
-    sending,
-    uploading,
-    sendMessage,
-    error: sendError,
-    clearError,
-    releaseSendGuards,
-  } = useChatSend(agentId, {
-    getHistoryMessages: () => messages,
-    onUserMessage: appendMessageDeduped,
-    onAgentMessage: appendMessageDeduped,
-  });
-
-  useChatSocket(agentId, {
-    onAgentMessage: appendMessageDeduped,
-    onSendComplete: releaseSendGuards,
-  });
 
   // Auto-grow the textarea: reset height to 'auto' so the scrollHeight
   // shrinks when the user deletes text, then size to scrollHeight up to
@@ -256,20 +98,6 @@ export function MobileChat({
     }
   }, [messages]);
 
-  // Consume any agent messages that arrived while history was loading.
-  const initialConsumeDoneRef = useRef(false);
-  useEffect(() => {
-    if (historyLoading || initialConsumeDoneRef.current) return;
-    initialConsumeDoneRef.current = true;
-    const consume = useCanvasStore.getState().consumeAgentMessages;
-    const msgs = consume(agentId);
-    for (const m of msgs) {
-      appendMessageDeduped(
-        createMessage("agent", m.content, m.attachments),
-      );
-    }
-  }, [historyLoading, agentId, appendMessageDeduped]);
-
   if (!node) {
     return (
       <div
@@ -291,32 +119,58 @@ export function MobileChat({
   const a = toMobileAgent(node);
   const reachable = a.status === "online" || a.status === "degraded";
 
-  const onFilesPicked = (fileList: FileList | null) => {
-    if (!fileList) return;
-    const picked = Array.from(fileList);
-    setPendingFiles((prev) => {
-      const keyed = new Set(prev.map((f) => `${f.name}:${f.size}`));
-      return [...prev, ...picked.filter((f) => !keyed.has(`${f.name}:${f.size}`))];
-    });
-    if (fileInputRef.current) fileInputRef.current.value = "";
-  };
-
-  const removePendingFile = (index: number) =>
-    setPendingFiles((prev) => prev.filter((_, i) => i !== index));
-
   const send = async () => {
     const text = draft.trim();
-    if ((!text && pendingFiles.length === 0) || sending || !reachable) return;
-    clearError();
+    if (!text || sending || !reachable) return;
+    if (sendInFlightRef.current) return;
+    sendInFlightRef.current = true;
     setDraft("");
-    const files = pendingFiles;
-    setPendingFiles([]);
-    await sendMessage(text, files);
+    setError(null);
+    setSending(true);
+    const myMsg: ChatMessage = {
+      id: crypto.randomUUID(),
+      role: "user",
+      text,
+      ts: formatTime(new Date()),
+    };
+    setMessages((m) => [...m, myMsg]);
+
+    try {
+      const res = await api.post<A2AResponseShape>(`/workspaces/${agentId}/a2a`, {
+        method: "message/send",
+        params: {
+          message: {
+            role: "user",
+            messageId: crypto.randomUUID(),
+            parts: [{ kind: "text", text }],
+          },
+        },
+      });
+      const reply =
+        res.result?.parts?.find((part) => part.kind === "text")?.text ?? "";
+      if (reply) {
+        setMessages((m) => [
+          ...m,
+          {
+            id: crypto.randomUUID(),
+            role: "agent",
+            text: reply,
+            ts: formatTime(new Date()),
+          },
+        ]);
+      } else if (res.error?.message) {
+        setError(res.error.message);
+      }
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to send");
+    } finally {
+      setSending(false);
+      sendInFlightRef.current = false;
+    }
   };
 
   return (
     <div
-      data-testid="chat-panel"
       style={{
         height: "100%",
         display: "flex",
@@ -457,42 +311,7 @@ export function MobileChat({
             Agent Comms — peer-to-peer A2A traffic surfaces in the Comms tab.
           </div>
         )}
-        {tab === "my" && historyLoading && (
-          <div style={{ padding: "20px 4px", textAlign: "center", color: p.text3, fontSize: 13 }}>
-            Loading chat history…
-          </div>
-        )}
-        {tab === "my" && !historyLoading && historyError && messages.length === 0 && (
-          <div
-            role="alert"
-            style={{
-              padding: "14px 4px",
-              textAlign: "center",
-              color: p.failed,
-              fontSize: 13,
-            }}
-          >
-            <div style={{ marginBottom: 8 }}>Could not load chat history.</div>
-            <button
-              type="button"
-              onClick={() => {
-                loadInitial();
-              }}
-              style={{
-                padding: "6px 14px",
-                borderRadius: 14,
-                border: `0.5px solid ${p.failed}`,
-                background: "transparent",
-                color: p.failed,
-                fontSize: 12,
-                cursor: "pointer",
-              }}
-            >
-              Retry
-            </button>
-          </div>
-        )}
-        {tab === "my" && !historyLoading && !historyError && messages.length === 0 && (
+        {tab === "my" && messages.length === 0 && (
           <div style={{ padding: "20px 4px", textAlign: "center", color: p.text3, fontSize: 13 }}>
             Send a message to start chatting.
           </div>
@@ -521,9 +340,7 @@ export function MobileChat({
                     overflowWrap: "anywhere",
                   }}
                 >
-                  <MarkdownBubble dark={dark} accent={p.accent}>
-                    {m.content}
-                  </MarkdownBubble>
+                  {m.text}
                   <div
                     style={{
                       fontSize: 10,
@@ -532,13 +349,13 @@ export function MobileChat({
                       fontFamily: MOBILE_FONT_MONO,
                     }}
                   >
-                    {formatStoredTimestamp(m.timestamp)}
+                    {m.ts}
                   </div>
                 </div>
               </div>
             );
           })}
-        {sendError && (
+        {error && (
           <div
             role="alert"
             style={{
@@ -550,7 +367,7 @@ export function MobileChat({
               fontSize: 12,
             }}
           >
-            {sendError}
+            {error}
           </div>
         )}
       </div>
@@ -581,60 +398,6 @@ export function MobileChat({
           backdropFilter: "blur(14px)",
         }}
       >
-        {pendingFiles.length > 0 && (
-          <div
-            style={{
-              display: "flex",
-              flexWrap: "wrap",
-              gap: 6,
-              marginBottom: 8,
-              paddingLeft: 2,
-            }}
-          >
-            {pendingFiles.map((f, i) => (
-              <div
-                key={`${f.name}:${f.size}`}
-                style={{
-                  display: "flex",
-                  alignItems: "center",
-                  gap: 4,
-                  padding: "3px 8px",
-                  borderRadius: 10,
-                  background: dark ? "#2a2823" : "#ece9e0",
-                  fontSize: 12,
-                  color: p.text2,
-                  maxWidth: "100%",
-                }}
-              >
-                <span
-                  style={{
-                    overflow: "hidden",
-                    textOverflow: "ellipsis",
-                    whiteSpace: "nowrap",
-                  }}
-                >
-                  {f.name}
-                </span>
-                <button
-                  type="button"
-                  onClick={() => removePendingFile(i)}
-                  aria-label={`Remove ${f.name}`}
-                  style={{
-                    border: "none",
-                    background: "transparent",
-                    color: p.text3,
-                    cursor: "pointer",
-                    fontSize: 12,
-                    padding: 0,
-                    lineHeight: 1,
-                  }}
-                >
-                  ✕
-                </button>
-              </div>
-            ))}
-          </div>
-        )}
         <div
           style={{
             display: "flex",
@@ -646,32 +409,21 @@ export function MobileChat({
             padding: "6px 6px 6px 12px",
           }}
         >
-          <input
-            ref={fileInputRef}
-            type="file"
-            multiple
-            style={{ display: "none" }}
-            onChange={(e) => onFilesPicked(e.target.files)}
-            aria-hidden="true"
-          />
           <button
             type="button"
-            onClick={() => fileInputRef.current?.click()}
-            disabled={!reachable || sending || uploading}
             aria-label="Attach"
             style={{
               width: 32,
               height: 32,
               borderRadius: 999,
               border: "none",
-              cursor: reachable && !sending && !uploading ? "pointer" : "not-allowed",
+              cursor: "pointer",
               background: "transparent",
               color: p.text3,
               flexShrink: 0,
               display: "flex",
               alignItems: "center",
               justifyContent: "center",
-              opacity: !reachable || sending || uploading ? 0.4 : 1,
             }}
           >
             {Icons.attach({ size: 16 })}
@@ -717,32 +469,28 @@ export function MobileChat({
           <button
             type="button"
             onClick={send}
-            disabled={(!draft.trim() && pendingFiles.length === 0) || !reachable || sending || uploading}
+            disabled={!draft.trim() || !reachable || sending}
             aria-label="Send"
             style={{
               width: 36,
               height: 36,
               borderRadius: 999,
               border: "none",
-              cursor: (draft.trim() || pendingFiles.length > 0) && !sending && !uploading ? "pointer" : "not-allowed",
+              cursor: draft.trim() && !sending ? "pointer" : "not-allowed",
               flexShrink: 0,
               background:
-                (draft.trim() || pendingFiles.length > 0) && reachable && !sending && !uploading
+                draft.trim() && reachable && !sending
                   ? p.accent
                   : dark
                     ? "#2a2823"
                     : "#ece9e0",
-              color: (draft.trim() || pendingFiles.length > 0) && reachable && !sending && !uploading ? "#fff" : p.text3,
+              color: draft.trim() && reachable && !sending ? "#fff" : p.text3,
               display: "flex",
               alignItems: "center",
               justifyContent: "center",
             }}
           >
-            {uploading ? (
-              <span style={{ fontSize: 10, fontWeight: 600 }}>↑</span>
-            ) : (
-              Icons.send({ size: 16 })
-            )}
+            {Icons.send({ size: 16 })}
           </button>
         </div>
       </div>

canvas/src/components/mobile/MobileDetail.tsx

@@ -214,7 +214,6 @@ export function MobileDetail({
         <button
           type="button"
           onClick={onChat}
-          data-testid="mobile-chat-cta"
           style={{
             width: "100%",
             height: 52,

canvas/src/components/mobile/__tests__/MobileChat.test.tsx

@@ -8,19 +8,11 @@
  * NOTE: No @testing-library/jest-dom — use DOM APIs.
  */
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
-import { act, cleanup, render, waitFor } from "@testing-library/react";
+import { cleanup, render } from "@testing-library/react";
 import React from "react";
 
 import { MobileChat } from "../MobileChat";
 
-// ─── Mock API ─────────────────────────────────────────────────────────────────
-// vi.mock without a factory auto-mocks the module. In tests, we configure
-// api.get / api.post directly (they are vi.fn() from the auto-mock).
-// Tests that need specific behaviour use mockResolvedValueOnce on the
-// auto-mocked functions.
-vi.mock("@/lib/api");
-import { api } from "@/lib/api";
-
 // ─── Mock store ───────────────────────────────────────────────────────────────
 
 const mockAgentId = "ws-chat-test";
@@ -36,19 +28,12 @@ const mockStoreState = {
     height?: number;
   }>,
   agentMessages: {} as Record<string, Array<{ id: string; content: string; timestamp: string }>>,
-  consumeAgentMessages: () => [],
 };
 
 vi.mock("@/store/canvas", () => ({
   useCanvasStore: Object.assign(
-    vi.fn((sel?: (state: typeof mockStoreState) => unknown) => {
-      if (sel) return sel(mockStoreState);
-      return mockStoreState;
-    }),
-    {
-      getState: () => mockStoreState,
-      subscribe: vi.fn(() => vi.fn()),
-    },
+    vi.fn((sel) => sel(mockStoreState)),
+    { getState: () => mockStoreState },
   ),
   summarizeWorkspaceCapabilities: vi.fn((data: Record<string, unknown>) => {
     const agentCard = data.agentCard as Record<string, unknown> | null;
@@ -69,6 +54,16 @@ vi.mock("@/store/canvas", () => ({
   }),
 }));
 
+// ─── Mock API ─────────────────────────────────────────────────────────────────
+
+const { mockApiPost } = vi.hoisted(() => ({
+  mockApiPost: vi.fn().mockResolvedValue({ result: { parts: [] } }),
+}));
+
+vi.mock("@/lib/api", () => ({
+  api: { post: mockApiPost },
+}));
+
 // ─── Fixtures ────────────────────────────────────────────────────────────────
 
 const onlineNode = {
@@ -155,15 +150,7 @@ beforeEach(() => {
   mockOnBack.mockClear();
   mockStoreState.nodes = [];
   mockStoreState.agentMessages = {};
-  // Set up spies on the real api methods. Tests override these per-call.
-  const getSpy = vi.spyOn(api, "get");
-  const postSpy = vi.spyOn(api, "post");
-  getSpy.mockResolvedValue({ messages: [], reached_end: true });
-  postSpy.mockResolvedValue({ result: { parts: [] } });
-});
-
-afterEach(() => {
-  vi.restoreAllMocks();
+  mockApiPost.mockClear();
 });
 
 afterEach(() => {
@@ -279,26 +266,15 @@ describe("MobileChat — empty state", () => {
     mockStoreState.nodes = [onlineNode];
   });
 
-  it('shows "Send a message to start chatting." when no messages', async () => {
-    // History fetch resolves immediately in tests (mockResolvedValue).
-    // act() flushes the microtask queue so the component reaches its
-    // post-load state before we assert.
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
+  it('shows "Send a message to start chatting." when no messages', () => {
+    const { container } = renderChat(mockAgentId);
     expect(container.textContent ?? "").toContain("Send a message to start chatting.");
   });
 
-  it("shows no messages when agentMessages[agentId] is absent (undefined)", async () => {
+  it("shows no messages when agentMessages[agentId] is absent (undefined)", () => {
     // Explicitly set to empty to simulate no stored messages
     mockStoreState.agentMessages = {};
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
+    const { container } = renderChat(mockAgentId);
     expect(container.textContent ?? "").toContain("Send a message to start chatting.");
   });
 });
@@ -345,132 +321,3 @@ describe("MobileChat — dark mode", () => {
     expect(container.querySelector('[aria-label="Back"]')).toBeTruthy();
   });
 });
-
-// ─── Chat history loading ────────────────────────────────────────────────────
-
-describe("MobileChat — chat history", () => {
-  beforeEach(() => {
-    mockStoreState.nodes = [onlineNode];
-  });
-
-  it("calls GET /workspaces/:id/chat-history on mount", async () => {
-    await act(async () => {
-      renderChat(mockAgentId);
-    });
-    expect(api.get).toHaveBeenCalledWith(
-      expect.stringContaining(`/workspaces/${mockAgentId}/chat-history`),
-    );
-  });
-
-  it("shows loading state while history is fetching", () => {
-    // Do NOT await — check the pre-resolve state.
-    const { container } = renderChat(mockAgentId);
-    expect(container.textContent ?? "").toContain("Loading chat history…");
-  });
-
-  it("shows empty state after history resolves with no messages", async () => {
-    // beforeEach already sets api.get to resolve with empty — no override needed.
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
-    expect(container.textContent ?? "").toContain("Send a message to start chatting.");
-  });
-
-  it("renders messages from history response", async () => {
-    vi.spyOn(api, "get").mockResolvedValueOnce({
-      messages: [
-        {
-          id: "msg-1",
-          role: "user",
-          content: "Hello agent",
-          timestamp: "2026-04-25T10:00:00Z",
-        },
-        {
-          id: "msg-2",
-          role: "agent",
-          content: "Hello back",
-          timestamp: "2026-04-25T10:00:01Z",
-        },
-      ],
-      reached_end: true,
-    });
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
-    expect(container.textContent ?? "").toContain("Hello agent");
-    expect(container.textContent ?? "").toContain("Hello back");
-  });
-
-  it("maps user role from API correctly", async () => {
-    vi.spyOn(api, "get").mockResolvedValueOnce({
-      messages: [
-        {
-          id: "msg-u",
-          role: "user",
-          content: "user message",
-          timestamp: "2026-04-25T10:00:00Z",
-        },
-      ],
-      reached_end: true,
-    });
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    // User messages render right-aligned. The text content check is sufficient
-    // to confirm the message appeared.
-    const { container } = renderResult!;
-    expect(container.textContent ?? "").toContain("user message");
-  });
-
-  it("shows error state when history fetch fails", async () => {
-    vi.spyOn(api, "get").mockRejectedValue(new Error("Network error"));
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
-    expect(container.textContent ?? "").toContain("Could not load chat history.");
-    expect(container.textContent ?? "").toContain("Retry");
-  });
-
-  it("Retry button re-fetches history after error", async () => {
-    // Make the initial mount call fail so the Retry button appears, then
-    // make the retry call succeed so we can verify the full flow.
-    const getSpy = vi.spyOn(api, "get");
-    getSpy
-      .mockRejectedValueOnce(new Error("Network error"))
-      .mockResolvedValueOnce({ messages: [], reached_end: true });
-
-    let renderResult: ReturnType<typeof renderChat>;
-    await act(async () => {
-      renderResult = renderChat(mockAgentId);
-    });
-    const { container } = renderResult!;
-
-    // Error state should be shown with Retry button.
-    expect(container.textContent ?? "").toContain("Could not load chat history.");
-    expect(container.textContent ?? "").toContain("Retry");
-
-    // Click Retry — the button's onClick fires api.get again.
-    // The second mockResolvedValueOnce makes it succeed.
-    const retryBtn = Array.from(container.querySelectorAll("button")).find(
-      (b) => b.textContent?.trim() === "Retry",
-    );
-    expect(retryBtn).toBeTruthy();
-    await act(async () => {
-      retryBtn?.click();
-    });
-
-    // waitFor polls until the retry resolves and component re-renders.
-    await waitFor(() => {
-      expect(container.textContent ?? "").toContain("Send a message to start chatting.");
-    });
-    // Initial call + retry = 2.
-    expect(getSpy).toHaveBeenCalledTimes(2);
-  });
-});

canvas/src/components/mobile/components.tsx

@@ -288,7 +288,6 @@ export function AgentCard({
   return (
     <button
       type="button"
-      data-testid="workspace-card"
       aria-label={`${agent.name}, status: ${agent.status}, tier ${agent.tier}${agent.remote ? ", remote" : ""}`}
       onClick={onClick}
       style={{

canvas/src/components/tabs/ChatTab.tsx

@@ -5,19 +5,16 @@ import ReactMarkdown from "react-markdown";
 import remarkGfm from "remark-gfm";
 import { api } from "@/lib/api";
 import { useCanvasStore, type WorkspaceNodeData } from "@/store/canvas";
+import { useSocketEvent } from "@/hooks/useSocketEvent";
 import { type ChatMessage, type ChatAttachment, createMessage, appendMessageDeduped } from "./chat/types";
-import { downloadChatFile, isPlatformAttachment } from "./chat/uploads";
+import { uploadChatFiles, downloadChatFile, isPlatformAttachment } from "./chat/uploads";
 import { PendingAttachmentPill } from "./chat/AttachmentViews";
 import { AttachmentPreview } from "./chat/AttachmentPreview";
+import { extractFilesFromTask } from "./chat/message-parser";
 import { AgentCommsPanel } from "./chat/AgentCommsPanel";
 import { appendActivityLine } from "./chat/activityLog";
 import { runtimeDisplayName } from "@/lib/runtime-names";
 import { ConfirmDialog } from "@/components/ConfirmDialog";
-import { useChatHistory } from "./chat/hooks/useChatHistory";
-import { useChatSend } from "./chat/hooks/useChatSend";
-import { useChatSocket } from "./chat/hooks/useChatSocket";
-
-export { extractReplyText } from "./chat/hooks/useChatSend";
 
 interface Props {
   workspaceId: string;
@@ -26,6 +23,147 @@ interface Props {
 
 type ChatSubTab = "my-chat" | "agent-comms";
 
+// A2A response shape (subset). The full schema is in @a2a-js/sdk but we only
+// need parts/artifacts text + file extraction for the synchronous fallback.
+interface A2AFileRef {
+  name?: string;
+  mimeType?: string;
+  uri?: string;
+  bytes?: string;
+  size?: number;
+}
+// Outbound shape matches a2a-sdk's JSON-RPC `SendMessageRequest`
+// Pydantic union (TextPart | FilePart | DataPart). The flat
+// protobuf shape `{url, filename, mediaType}` is rejected at the
+// request boundary with `Field required` errors — keep this
+// outbound shape unless a2a-sdk migrates the JSON-RPC schema.
+interface A2APart {
+  kind: string;
+  text?: string;
+  file?: A2AFileRef;
+}
+interface A2AResponse {
+  result?: {
+    parts?: A2APart[];
+    artifacts?: Array<{ parts: A2APart[] }>;
+  };
+}
+
+// Internal-self-message filtering moved server-side in RFC #2945
+// PR-C/D — the platform's /chat-history endpoint applies the
+// IsInternalSelfMessage predicate before returning rows, so the
+// client no longer needs the local backstop on the history path.
+// The proper fix is still X-Workspace-ID header (source_id=workspace_id);
+// the platform-side prefix filter handles the residual cases.
+
+// extractReplyText pulls the agent's text reply out of an A2A response.
+// Concatenates ALL text parts (joined with "\n") rather than returning
+// just the first. Claude Code and other runtimes commonly emit multi-
+// part text replies for long content (markdown tables, code blocks),
+// and the prior "first part wins" implementation silently truncated
+// the rest — observed on a 15k-char Wave 1 brief that rendered only
+// the table header. Mirrors extractTextsFromParts in message-parser.ts.
+//
+// Server-side counterpart in workspace-server/internal/channels/
+// manager.go has the same single-part bug; fix that too if/when a
+// channel-delivered reply (Slack, Lark, etc.) gets truncated.
+export function extractReplyText(resp: A2AResponse): string {
+  const collect = (parts: A2APart[] | undefined): string => {
+    if (!parts) return "";
+    return parts
+      .filter((p) => p.kind === "text")
+      .map((p) => p.text ?? "")
+      .filter(Boolean)
+      .join("\n");
+  };
+  const result = resp?.result;
+  const collected: string[] = [];
+  const fromParts = collect(result?.parts);
+  if (fromParts) collected.push(fromParts);
+  // Walk artifacts even if parts had text — some producers (Hermes
+  // tool calls) emit a summary in parts AND details in artifacts.
+  // Returning early on parts dropped the artifact body silently.
+  if (result?.artifacts) {
+    for (const a of result.artifacts) {
+      const t = collect(a.parts);
+      if (t) collected.push(t);
+    }
+  }
+  return collected.join("\n");
+}
+
+// Agent-returned files live on the same response shape as text —
+// delegated to extractFilesFromTask in message-parser.ts, which also
+// walks status.message.parts (that ChatTab's legacy text extractor
+// doesn't). Single source of truth for file-part parsing across
+// live chat, activity log replay, and any future consumers.
+
+/** Initial chat history page size. The newest N messages are rendered
+ *  on first paint; older history is fetched on demand via loadOlder()
+ *  when the user scrolls the top sentinel into view. */
+const INITIAL_HISTORY_LIMIT = 10;
+/** Subsequent older-history batch size. Larger than INITIAL so a long
+ *  scroll-back doesn't fan out into many round-trips. */
+const OLDER_HISTORY_BATCH = 20;
+
+/**
+ * Load chat history from the platform's typed /chat-history endpoint.
+ *
+ * Server-side rendering of activity_logs rows into ChatMessage shape
+ * lives in workspace-server/internal/messagestore/postgres_store.go
+ * (RFC #2945 PR-C/D). The server already applies the canvas-source
+ * filter, the internal-self-message predicate, the role decision
+ * (status=error vs agent-error prefix → system), and the v0/v1
+ * file-shape extraction. Canvas just renders what it receives.
+ *
+ * Wire shape (mirrors ChatMessage exactly, no per-row mapping needed):
+ *
+ *   GET /workspaces/:id/chat-history?limit=N&before_ts=T
+ *   200 → {"messages": ChatMessage[], "reached_end": boolean}
+ *
+ * Pagination:
+ *  - Pass `limit` to bound the page size (newest-first from server).
+ *  - Pass `beforeTs` (RFC3339) to fetch rows STRICTLY OLDER than that
+ *    timestamp. Combined with limit, this yields the next-older page
+ *    when scrolling backward through history.
+ *
+ * `reachedEnd` is propagated from the server. The server computes it
+ * by comparing rowCount vs limit so a partial last page is correctly
+ * detected even when the row→bubble fan-out is non-1:1 (each row
+ * produces 1-2 bubbles).
+ */
+async function loadMessagesFromDB(
+  workspaceId: string,
+  limit: number,
+  beforeTs?: string,
+): Promise<{ messages: ChatMessage[]; error: string | null; reachedEnd: boolean }> {
+  try {
+    const params = new URLSearchParams({ limit: String(limit) });
+    if (beforeTs) params.set("before_ts", beforeTs);
+    const resp = await api.get<{ messages: ChatMessage[]; reached_end: boolean }>(
+      `/workspaces/${workspaceId}/chat-history?${params.toString()}`,
+    );
+
+    // Server emits oldest-first within the page (RFC #2945 PR-C-2
+    // post-fix: server reverses row-aware before returning so the
+    // wire is display-ready). Canvas appends/prepends without
+    // reordering — this avoids the pair-flip bug a naive flat
+    // reverse causes when each row produces a (user, agent) pair
+    // with the same timestamp.
+    return {
+      messages: resp.messages ?? [],
+      error: null,
+      reachedEnd: resp.reached_end,
+    };
+  } catch (err) {
+    return {
+      messages: [],
+      error: err instanceof Error ? err.message : "Failed to load chat history",
+      reachedEnd: true,
+    };
+  }
+}
+
 /**
  * ChatTab container — renders sub-tab bar + My Chat or Agent Comms panel.
  */
@@ -33,7 +171,7 @@ export function ChatTab({ workspaceId, data }: Props) {
   const [subTab, setSubTab] = useState<ChatSubTab>("my-chat");
 
   return (
-    <div data-testid="chat-panel" className="flex flex-col h-full">
+    <div className="flex flex-col h-full">
       {/* Sub-tab bar — role="tablist" so screen readers expose tab context */}
       <div
         role="tablist"
@@ -109,68 +247,268 @@ export function ChatTab({ workspaceId, data }: Props) {
  * MyChatPanel — user↔agent conversation (extracted from original ChatTab).
  */
 function MyChatPanel({ workspaceId, data }: Props) {
+  const [messages, setMessages] = useState<ChatMessage[]>([]);
   const [input, setInput] = useState("");
-  const [pendingFiles, setPendingFiles] = useState<File[]>([]);
-  const [activityLog, setActivityLog] = useState<string[]>([]);
+  // `sending` is strictly the "this tab kicked off a send and hasn't
+  // seen the reply yet" signal. Previously this was initialized from
+  // data.currentTask to pick up in-flight agent work on mount, but
+  // that conflated agent-busy (workspace heartbeat) with user-
+  // in-flight (local send): when the WS dropped a TASK_COMPLETE event,
+  // currentTask lingered, the component re-mounted with sending=true,
+  // and the Send button stayed disabled forever even though nothing
+  // local was in flight. For the "agent is busy, show spinner" UX,
+  // use data.currentTask directly in the render path.
+  const [sending, setSending] = useState(false);
   const [thinkingElapsed, setThinkingElapsed] = useState(0);
+  const [activityLog, setActivityLog] = useState<string[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [loadError, setLoadError] = useState<string | null>(null);
+  const currentTaskRef = useRef(data.currentTask);
+  const sendingFromAPIRef = useRef(false);
   const [agentReachable, setAgentReachable] = useState(false);
   const [error, setError] = useState<string | null>(null);
   const [confirmRestart, setConfirmRestart] = useState(false);
-  const [dragOver, setDragOver] = useState(false);
-
+  const bottomRef = useRef<HTMLDivElement>(null);
+  // First-mount scroll-to-bottom needs `behavior: "instant"` — long
+  // conversations smooth-animate for ~300ms which any concurrent
+  // re-render can interrupt, leaving the user stuck mid-conversation
+  // when the chat tab opens. Subsequent appends (new agent messages)
+  // keep `smooth` for the visual "landing" feel. Flipped the first
+  // time messages.length goes positive, so a workspace switch (which
+  // remounts ChatTab) gets a fresh instant jump too.
+  const hasInitialScrollRef = useRef(false);
+  // Lazy-load older history on scroll-up.
+  // - containerRef = the scrollable messages viewport
+  // - topRef       = sentinel above the messages list; IO observes it
+  //                  and triggers loadOlder() when it enters view
+  // - hasMore      = false once a fetch returns < limit rows; stops IO
+  // - loadingOlder = drives the "Loading older messages…" UI label
+  // - inflightRef  = synchronous guard against double-entry of loadOlder
+  //                  when the IO callback fires twice in the same
+  //                  microtask (state-based guard would be stale until
+  //                  the next React commit)
+  // - scrollAnchorRef = saves distance-from-bottom before a prepend
+  //                  so the useLayoutEffect below can restore the
+  //                  user's exact viewport position. Without this,
+  //                  prepending older messages would jump the scroll
+  //                  position by the height of the new content.
+  // - oldestMessageRef / hasMoreRef = let the loadOlder closure read
+  //                  the latest values without taking them as deps —
+  //                  every live agent push mutates `messages`, and
+  //                  having loadOlder depend on `messages` would tear
+  //                  down + re-arm the IntersectionObserver on every
+  //                  push. Refs decouple the observer lifecycle from
+  //                  message-list updates.
   const containerRef = useRef<HTMLDivElement>(null);
   const topRef = useRef<HTMLDivElement>(null);
-  const bottomRef = useRef<HTMLDivElement>(null);
-  const hasInitialScrollRef = useRef(false);
+  const [hasMore, setHasMore] = useState(true);
+  const [loadingOlder, setLoadingOlder] = useState(false);
+  const inflightRef = useRef(false);
+  // The scroll anchor includes the first-message id as it was BEFORE
+  // the prepend — see useLayoutEffect below for why. Without this tag,
+  // a live agent push that appends WHILE loadOlder is in flight would
+  // run useLayoutEffect against the append (anchor still set), the
+  // "restore" math would scroll the user to a stale offset, AND the
+  // append's normal scroll-to-bottom would be swallowed.
+  const scrollAnchorRef = useRef<
+    { savedDistanceFromBottom: number; expectFirstIdNotEqual: string | null } | null
+  >(null);
+  const oldestMessageRef = useRef<ChatMessage | null>(null);
+  const hasMoreRef = useRef(true);
+  // Monotonic token bumped on workspace switch + on every loadOlder
+  // entry. Each fetch's .then() captures its own token; if the token
+  // has moved, the resolved messages belong to a stale workspace or a
+  // superseded fetch and we silently drop them. Without this guard, a
+  // workspace switch mid-fetch would have the in-flight promise
+  // resolve into the new workspace's setMessages — the user sees
+  // someone else's history briefly.
+  const fetchTokenRef = useRef(0);
+  // Files the user has picked but not yet sent. Cleared on send
+  // (upload success) or by the × on each pill.
+  const [pendingFiles, setPendingFiles] = useState<File[]>([]);
+  const [uploading, setUploading] = useState(false);
   const fileInputRef = useRef<HTMLInputElement>(null);
-  const dragDepthRef = useRef(0);
-  const pasteCounterRef = useRef(0);
+  // Guard against a double-click during the upload phase: React
+  // state updates from the click that started the upload haven't
+  // flushed yet, so the disabled-button logic sees `uploading=false`
+  // from the closure and lets a second `sendMessage` enter. A ref
+  // observes the latest value synchronously.
+  const sendInFlightRef = useRef(false);
+  // Monotonic token bumped on every sendMessage entry. Each .then()/
+  // .catch() captures its own token in closure and bails if a newer
+  // send has superseded it — prevents a late HTTP response for an
+  // earlier message from clobbering the flags / appending text that
+  // belong to a newer in-flight send. Race scenario the token closes:
+  // (1) send msg #1 (2) WS push for msg #1 arrives, releases guards
+  // (3) user sends msg #2 (4) HTTP for msg #1 finally lands — without
+  // the token check, .then() sees sendingFromAPIRef=true (set by
+  // msg #2's send), enters the main body, and processes msg #1's body
+  // as if it were msg #2's reply.
+  const sendTokenRef = useRef(0);
 
-  const history = useChatHistory(workspaceId, containerRef);
-  const chatSend = useChatSend(workspaceId, {
-    getHistoryMessages: () => history.messages,
-    onUserMessage: (msg) => history.setMessages((prev) => [...prev, msg]),
-    onAgentMessage: (msg) => history.setMessages((prev) => appendMessageDeduped(prev, msg)),
-  });
-  const { sending, uploading, sendMessage, error: sendError, clearError: clearSendError, releaseSendGuards, sendingFromAPIRef } = chatSend;
+  // Release every in-flight send guard at once. Used by every site
+  // that ends a send: pendingAgentMsgs WS push, ACTIVITY_LOGGED
+  // a2a_receive ok/error WS event, HTTP .then() success, and HTTP
+  // .catch() success. Keep these in lockstep — a future contributor
+  // adding a new "I saw the reply" path that only clears `sending` +
+  // `sendingFromAPIRef` (the natural pair) silently re-introduces
+  // the post-WS Send-button freeze, because the disabled-button
+  // logic can't see `sendInFlightRef` and so the visible state diverges
+  // from the synchronous re-entry guard at line 464.
+  const releaseSendGuards = useCallback(() => {
+    setSending(false);
+    sendingFromAPIRef.current = false;
+    sendInFlightRef.current = false;
+  }, []);
 
-  const displayError = error || sendError;
+  // Initial-load fetch — used by the mount effect and the "Retry"
+  // button below. Single source of truth so the two paths can't drift
+  // (e.g. INITIAL_HISTORY_LIMIT bumped in the effect but not the
+  // retry, leading to inconsistent first-paint sizes).
+  const loadInitial = useCallback(() => {
+    setLoading(true);
+    setLoadError(null);
+    setHasMore(true);
+    // Bump the token; any in-flight fetch from the previous workspace
+    // (or a previous retry) will see token != myToken in its .then()
+    // and silently bail — the late response can't clobber the new
+    // workspace's state.
+    fetchTokenRef.current += 1;
+    const myToken = fetchTokenRef.current;
+    loadMessagesFromDB(workspaceId, INITIAL_HISTORY_LIMIT).then(
+      ({ messages: msgs, error: fetchErr, reachedEnd }) => {
+        if (fetchTokenRef.current !== myToken) return;
+        setMessages(msgs);
+        setLoadError(fetchErr);
+        setHasMore(!reachedEnd);
+        setLoading(false);
+      },
+    );
+  }, [workspaceId]);
 
-  useChatSocket(workspaceId, {
-    onAgentMessage: (msg) => {
-      history.setMessages((prev) => appendMessageDeduped(prev, msg));
-      if (sendingFromAPIRef.current) {
-        releaseSendGuards();
+  // Load chat history on mount / workspace switch.
+  // Initial load is bounded to INITIAL_HISTORY_LIMIT (newest 10) — the
+  // rest streams in as the user scrolls up via loadOlder() below. Pre-
+  // 2026-05-05 this fetched the newest 50 in one shot; on a long-running
+  // workspace that meant 50× message-bubble paint + DOM cost on every
+  // tab-open even when the user only wanted to read the last few.
+  useEffect(() => {
+    loadInitial();
+  }, [loadInitial]);
+
+  // Mirror the latest oldest-message + hasMore into refs so loadOlder
+  // can read them without taking `messages` as a dep. Every live push
+  // through agentMessages would otherwise recreate loadOlder and tear
+  // down the IO observer.
+  useEffect(() => {
+    oldestMessageRef.current = messages[0] ?? null;
+  }, [messages]);
+  useEffect(() => {
+    hasMoreRef.current = hasMore;
+  }, [hasMore]);
+
+  // Fetch the next-older batch and prepend. Stable identity (deps =
+  // [workspaceId]) so the IntersectionObserver effect below doesn't
+  // re-arm on every messages update.
+  const loadOlder = useCallback(async () => {
+    // inflightRef is the load-bearing guard — synchronous, set BEFORE
+    // any await, so two IO callbacks dispatched in the same microtask
+    // can't both pass. The state checks are defensive secondary
+    // gates for the slow-scroll case.
+    if (inflightRef.current || !hasMoreRef.current) return;
+    const oldest = oldestMessageRef.current;
+    if (!oldest) return;
+    const container = containerRef.current;
+    if (!container) return;
+    inflightRef.current = true;
+    // Capture the user's distance-from-bottom BEFORE we prepend so the
+    // useLayoutEffect can restore it after the new DOM lands. The
+    // expectFirstIdNotEqual tag is what the layout effect checks
+    // against `messages[0].id` to disambiguate prepend (id changed) vs
+    // append (id unchanged → live message landed mid-fetch). Without
+    // it, an agent push during loadOlder runs the "restore" against a
+    // stale anchor — user gets yanked + the append's bottom-pin is
+    // swallowed.
+    scrollAnchorRef.current = {
+      savedDistanceFromBottom: container.scrollHeight - container.scrollTop,
+      expectFirstIdNotEqual: oldest.id,
+    };
+    fetchTokenRef.current += 1;
+    const myToken = fetchTokenRef.current;
+    setLoadingOlder(true);
+    try {
+      const { messages: older, reachedEnd } = await loadMessagesFromDB(
+        workspaceId,
+        OLDER_HISTORY_BATCH,
+        oldest.timestamp,
+      );
+      // Workspace switched (or another loadOlder bumped the token)
+      // mid-fetch — drop these results, they belong to a stale tab.
+      if (fetchTokenRef.current !== myToken) {
+        scrollAnchorRef.current = null;
+        return;
       }
-    },
-    onActivityLog: (entry) => {
-      if (!sending) return;
-      setActivityLog((prev) => appendActivityLine(prev, entry));
-    },
-    onSendComplete: () => {
-      if (sendingFromAPIRef.current) {
-        releaseSendGuards();
+      if (older.length > 0) {
+        setMessages((prev) => [...older, ...prev]);
+      } else {
+        // Nothing came back — clear the anchor so the next paint doesn't
+        // try to "restore" against a no-op prepend.
+        scrollAnchorRef.current = null;
       }
-    },
-    onSendError: (err) => {
-      if (sendingFromAPIRef.current) {
-        releaseSendGuards();
-        setError(err);
-      }
-    },
-  });
+      setHasMore(!reachedEnd);
+    } finally {
+      setLoadingOlder(false);
+      inflightRef.current = false;
+    }
+  }, [workspaceId]);
+
+  // IntersectionObserver on the top sentinel. Fires loadOlder() the
+  // moment the user scrolls within 200px of the top. AbortController
+  // unwires cleanly on workspace switch / unmount; root is the
+  // scrollable container so we observe only what's visible inside it.
+  //
+  // Dependencies:
+  //  - loadOlder    — stable per workspaceId (refs decouple it from
+  //                   message updates), so this dep is here for the
+  //                   workspace-switch case only
+  //  - hasMore      — re-run when older history runs out so we
+  //                   disconnect cleanly
+  //  - hasMessages  — load-bearing: the sentinel JSX is gated on
+  //                   `messages.length > 0`, so topRef.current is null
+  //                   on the empty-messages render. We re-arm exactly
+  //                   once when messages first land. NOT depending on
+  //                   `messages.length` (or `messages`) directly so
+  //                   each subsequent message append doesn't tear down
+  //                   + re-arm the observer.
+  const hasMessages = messages.length > 0;
+  useEffect(() => {
+    const top = topRef.current;
+    const container = containerRef.current;
+    if (!top || !container) return;
+    if (!hasMore) return; // stop observing when no older history exists
+    const ac = new AbortController();
+    const io = new IntersectionObserver(
+      (entries) => {
+        if (ac.signal.aborted) return;
+        if (entries[0]?.isIntersecting) loadOlder();
+      },
+      { root: container, rootMargin: "200px 0px 0px 0px", threshold: 0 },
+    );
+    io.observe(top);
+    ac.signal.addEventListener("abort", () => io.disconnect());
+    return () => ac.abort();
+  }, [loadOlder, hasMore, hasMessages]);
 
   // Agent reachability
   useEffect(() => {
     const reachable = data.status === "online" || data.status === "degraded";
     setAgentReachable(reachable);
-    if (reachable) {
-      setError(null);
-      clearSendError();
-    } else {
-      setError(`Agent is ${data.status}`);
-    }
-  }, [data.status, clearSendError]);
+    setError(reachable ? null : `Agent is ${data.status}`);
+  }, [data.status]);
+
+  useEffect(() => {
+    currentTaskRef.current = data.currentTask;
+  }, [data.currentTask]);
 
   // Scroll behavior across messages updates:
   //  - Prepend (loadOlder landed)  → restore the user's saved
@@ -180,24 +518,71 @@ function MyChatPanel({ workspaceId, data }: Props) {
   // paint — otherwise the user sees the page jump for one frame.
   useLayoutEffect(() => {
     const container = containerRef.current;
-    const anchor = history.scrollAnchorRef.current;
+    const anchor = scrollAnchorRef.current;
+    // Only honor the anchor when this messages-update is the prepend
+    // we expected. messages[0].id is the test:
+    //   - prepend  → messages[0] is one of the older rows → id !== expectFirstIdNotEqual
+    //   - append   → messages[0] unchanged → id === expectFirstIdNotEqual → fall through
+    // Without this check, an agent push that lands mid-loadOlder would
+    // run the restore against the append's update, yank the user's
+    // scroll, AND swallow the append's bottom-pin.
     if (
       anchor &&
       container &&
-      history.messages.length > 0 &&
-      history.messages[0].id !== anchor.expectFirstIdNotEqual
+      messages.length > 0 &&
+      messages[0].id !== anchor.expectFirstIdNotEqual
     ) {
       container.scrollTop = container.scrollHeight - anchor.savedDistanceFromBottom;
-      history.scrollAnchorRef.current = null;
+      scrollAnchorRef.current = null;
       return;
     }
-    if (!hasInitialScrollRef.current && history.messages.length > 0) {
+    // Instant on first arrival of messages — smooth-scroll on a long
+    // conversation gets interrupted by concurrent renders and leaves
+    // the user stuck in the middle. After the first jump, subsequent
+    // appends animate as before.
+    if (!hasInitialScrollRef.current && messages.length > 0) {
       hasInitialScrollRef.current = true;
       bottomRef.current?.scrollIntoView({ behavior: "instant" as ScrollBehavior });
       return;
     }
     bottomRef.current?.scrollIntoView({ behavior: "smooth" });
-  }, [history.messages, history.scrollAnchorRef]);
+  }, [messages]);
+
+  // Consume agent push messages (send_message_to_user) from global store.
+  // Runtimes like Claude Code SDK deliver their reply via a WS push rather
+  // than the /a2a HTTP response — when that happens, the push is the
+  // authoritative "reply arrived" signal for the UI, so clear `sending`
+  // here too. The HTTP .then() coordinates through sendingFromAPIRef so
+  // whichever path clears first wins.
+  const pendingAgentMsgs = useCanvasStore((s) => s.agentMessages[workspaceId]);
+  useEffect(() => {
+    if (!pendingAgentMsgs || pendingAgentMsgs.length === 0) return;
+    const consume = useCanvasStore.getState().consumeAgentMessages;
+    const msgs = consume(workspaceId);
+    for (const m of msgs) {
+      // Dedupe in case the agent proactively pushed the same text the
+      // HTTP /a2a response already delivered (observed with the Hermes
+      // runtime, which emits both a reply body and a send_message_to_user
+      // push for the same content). Attachments ride along with the
+      // message so files returned by the A2A_RESPONSE WS path render
+      // their download chips.
+      setMessages((prev) => appendMessageDeduped(prev, createMessage("agent", m.content, m.attachments)));
+    }
+    if (sendingFromAPIRef.current && msgs.length > 0) {
+      // Reply arrived via WS push (e.g. claude-code SDK). Release all
+      // three guards together — without sendInFlightRef the next
+      // sendMessage() silently no-ops at the synchronous re-entry
+      // check.
+      releaseSendGuards();
+    }
+  }, [pendingAgentMsgs, workspaceId]);
+
+  // Resolve workspace ID → name for activity display
+  const resolveWorkspaceName = useCallback((id: string) => {
+    const nodes = useCanvasStore.getState().nodes;
+    const node = nodes.find((n) => n.id === id);
+    return (node?.data as WorkspaceNodeData)?.name || id.slice(0, 8);
+  }, []);
 
   // Elapsed timer while sending
   useEffect(() => {
@@ -224,43 +609,211 @@ function MyChatPanel({ workspaceId, data }: Props) {
     setActivityLog([`Processing with ${runtimeDisplayName(data.runtime)}...`]);
   }, [sending, data.runtime]);
 
-  // IntersectionObserver on the top sentinel. Fires loadOlder() the
-  // moment the user scrolls within 200px of the top. AbortController
-  // unwires cleanly on workspace switch / unmount; root is the
-  // scrollable container so we observe only what's visible inside it.
-  const hasMessages = history.messages.length > 0;
-  useEffect(() => {
-    const top = topRef.current;
-    const container = containerRef.current;
-    if (!top || !container) return;
-    if (!history.hasMore) return;
-    const ac = new AbortController();
-    const io = new IntersectionObserver(
-      (entries) => {
-        if (ac.signal.aborted) return;
-        if (entries[0]?.isIntersecting) history.loadOlder();
-      },
-      { root: container, rootMargin: "200px 0px 0px 0px", threshold: 0 },
-    );
-    io.observe(top);
-    ac.signal.addEventListener("abort", () => io.disconnect());
-    return () => ac.abort();
-  }, [history.loadOlder, history.hasMore, hasMessages]);
+  // Subscribe to global WS via the singleton ReconnectingSocket (no
+  // per-component WebSocket — the previous pattern dropped events
+  // silently on any reconnect because each panel's raw socket had no
+  // onclose handler).
+  useSocketEvent((msg) => {
+    if (!sending) return;
+    try {
+        if (msg.event === "ACTIVITY_LOGGED") {
+          // Filter to events for THIS workspace. The platform's
+          // BroadcastOnly fires to every connected client, and
+          // without this guard a sibling workspace's a2a_send would
+          // surface as "→ Delegating to X..." inside the wrong
+          // chat panel. (workspace_id on the WS envelope is the
+          // workspace whose activity_log row we just wrote.)
+          if (msg.workspace_id !== workspaceId) return;
 
-  const handleSend = async () => {
+          const p = msg.payload || {};
+          const type = p.activity_type as string;
+          const method = (p.method as string) || "";
+          const status = (p.status as string) || "";
+          const targetId = (p.target_id as string) || "";
+          const durationMs = p.duration_ms as number | undefined;
+          const summary = (p.summary as string) || "";
+
+          let line = "";
+          if (type === "a2a_receive" && method === "message/send") {
+            const targetName = resolveWorkspaceName(targetId || msg.workspace_id);
+            if (status === "ok" && durationMs) {
+              const sec = Math.round(durationMs / 1000);
+              line = `← ${targetName} responded (${sec}s)`;
+              // The platform logs a successful a2a_receive once the workspace
+              // has fully produced its reply. That's the authoritative "done"
+              // signal for the spinner — clear it even if the reply hasn't
+              // surfaced through the store yet (it may be delivered shortly
+              // via pendingAgentMsgs or the HTTP .then()).
+              const own = (targetId || msg.workspace_id) === workspaceId;
+              if (own && sendingFromAPIRef.current) {
+                releaseSendGuards();
+              }
+            } else if (status === "error") {
+              line = `⚠ ${targetName} error`;
+              const own = (targetId || msg.workspace_id) === workspaceId;
+              if (own && sendingFromAPIRef.current) {
+                releaseSendGuards();
+                setError("Agent error (Exception) — see workspace logs for details.");
+              }
+            }
+          } else if (type === "a2a_send") {
+            const targetName = resolveWorkspaceName(targetId);
+            line = `→ Delegating to ${targetName}...`;
+          } else if (type === "task_update") {
+            if (summary) line = `⟳ ${summary}`;
+          } else if (type === "agent_log") {
+            // Per-tool-use telemetry from claude_sdk_executor's
+            // _report_tool_use. The summary already carries an icon
+            // + human-readable args (📄 Read /path, ⚡ Bash: …)
+            // so we render it verbatim. No icon prefix here — the
+            // emoji at the start of summary is the visual marker.
+            if (summary) line = summary;
+          }
+
+          if (line) {
+            setActivityLog((prev) => appendActivityLine(prev, line));
+          }
+        } else if (msg.event === "TASK_UPDATED" && msg.workspace_id === workspaceId) {
+          const task = (msg.payload?.current_task as string) || "";
+          if (task) {
+            setActivityLog((prev) => appendActivityLine(prev, `⟳ ${task}`));
+          }
+        }
+        // A2A_RESPONSE is already consumed by the store and its text is
+        // appended to messages via the pendingAgentMsgs effect above; we
+        // don't need to duplicate it here.
+    } catch { /* ignore */ }
+  });
+
+  const sendMessage = async () => {
     const text = input.trim();
-    const files = pendingFiles;
-    if ((!text && files.length === 0) || !agentReachable || sending || uploading) return;
+    const filesToSend = pendingFiles;
+    // Allow sending if EITHER text OR attachments are present — a user
+    // can drop a file with no text and the agent still receives it.
+    if ((!text && filesToSend.length === 0) || !agentReachable || sending || uploading) return;
+    // Synchronous re-entry guard — see sendInFlightRef comment.
+    if (sendInFlightRef.current) return;
+    sendInFlightRef.current = true;
+
+    // Upload attachments first so we can include URIs in the A2A
+    // message parts. Sequential-before-send: a message with references
+    // to files not yet staged would fail agent-side; staging happens
+    // synchronously via /chat/uploads before message/send dispatch.
+    let uploaded: ChatAttachment[] = [];
+    if (filesToSend.length > 0) {
+      setUploading(true);
+      try {
+        uploaded = await uploadChatFiles(workspaceId, filesToSend);
+      } catch (e) {
+        setUploading(false);
+        sendInFlightRef.current = false;
+        setError(e instanceof Error ? `Upload failed: ${e.message}` : "Upload failed");
+        return;
+      }
+      setUploading(false);
+    }
+
     setInput("");
     setPendingFiles([]);
-    clearSendError();
+    setMessages((prev) => [...prev, createMessage("user", text, uploaded)]);
+    setSending(true);
+    sendingFromAPIRef.current = true;
     setError(null);
-    await sendMessage(text, files);
+    // Capture this send's token so the .then()/.catch() callbacks can
+    // detect a newer send that may have superseded them. See the
+    // sendTokenRef declaration for the race scenario this closes.
+    const myToken = ++sendTokenRef.current;
+
+    // Build conversation history from prior messages (last 20)
+    const history = messages
+      .filter((m) => m.role === "user" || m.role === "agent")
+      .slice(-20)
+      .map((m) => ({
+        role: m.role === "user" ? "user" : "agent",
+        parts: [{ kind: "text", text: m.content }],
+      }));
+
+    // A2A parts: text part (if any) + file parts (per attachment). The
+    // agent sees both in a single turn, matching the A2A spec shape.
+    // Wire shape is v0 — see A2APart definition above.
+    const parts: A2APart[] = [];
+    if (text) parts.push({ kind: "text", text });
+    for (const att of uploaded) {
+      parts.push({
+        kind: "file",
+        file: {
+          name: att.name,
+          mimeType: att.mimeType,
+          uri: att.uri,
+          size: att.size,
+        },
+      });
+    }
+
+    // A2A calls can legitimately take minutes — LLM latency +
+    // multi-turn tool use is common on slower providers (Hermes+minimax,
+    // Claude Code invoking bash/file tools, etc.). The 15s default
+    // would silently abort the fetch here, leaving the server to
+    // complete the reply and the user staring at
+    // "agent may be unreachable". Match the upload timeout (60s × 2)
+    // for the happy-path ceiling; anything longer is genuinely stuck.
+    api.post<A2AResponse>(`/workspaces/${workspaceId}/a2a`, {
+      method: "message/send",
+      params: {
+        message: {
+          role: "user",
+          messageId: crypto.randomUUID(),
+          parts,
+        },
+        metadata: { history },
+      },
+    }, { timeoutMs: 120_000 })
+      .then((resp) => {
+        // Bail without touching any flags if a newer sendMessage has
+        // already run — its myToken bumped sendTokenRef, so this is
+        // a stale callback for an earlier message. The newer send
+        // owns the in-flight guards now.
+        if (sendTokenRef.current !== myToken) return;
+        // Skip if the WS A2A_RESPONSE event already handled this response.
+        // Both paths (WS + HTTP) check sendingFromAPIRef — whichever clears
+        // it first wins, the other becomes a no-op (no duplicate messages).
+        if (!sendingFromAPIRef.current) {
+          sendInFlightRef.current = false;
+          return;
+        }
+        const replyText = extractReplyText(resp);
+        const replyFiles = extractFilesFromTask((resp?.result ?? {}) as Record<string, unknown>);
+        if (replyText || replyFiles.length > 0) {
+          setMessages((prev) =>
+            appendMessageDeduped(prev, createMessage("agent", replyText, replyFiles)),
+          );
+        }
+        releaseSendGuards();
+      })
+      .catch(() => {
+        // Stale-callback guard — same rationale as .then().
+        if (sendTokenRef.current !== myToken) return;
+        // Same dedup guard as .then(): if a WS path (pendingAgentMsgs
+        // or ACTIVITY_LOGGED a2a_receive ok) already delivered the
+        // reply, sendingFromAPIRef is already false and there's
+        // nothing to roll back. Surfacing "Failed to send" here would
+        // contradict the agent reply the user is currently reading —
+        // exactly the false-positive observed when the HTTP request
+        // hung up (proxy idle / 502) after WS already won.
+        if (!sendingFromAPIRef.current) {
+          sendInFlightRef.current = false;
+          return;
+        }
+        releaseSendGuards();
+        setError("Failed to send message — agent may be unreachable");
+      });
   };
 
   const onFilesPicked = (fileList: FileList | null) => {
     if (!fileList) return;
     const picked = Array.from(fileList);
+    // Deduplicate against current pending set by name+size — user
+    // picking the same file twice shouldn't append it.
     setPendingFiles((prev) => {
       const keyed = new Set(prev.map((f) => `${f.name}:${f.size}`));
       return [...prev, ...picked.filter((f) => !keyed.has(`${f.name}:${f.size}`))];
@@ -271,7 +824,35 @@ function MyChatPanel({ workspaceId, data }: Props) {
   const removePendingFile = (index: number) =>
     setPendingFiles((prev) => prev.filter((_, i) => i !== index));
 
+  // Monotonic counter so two paste events within the same wall-clock
+  // second still produce distinct filenames. Without this, on
+  // Firefox (where pasted images have an empty `file.name`), two
+  // pastes ~100ms apart could yield identical synthetic names AND
+  // identical sizes, collapsing into one attachment via the
+  // `name:size` dedup in onFilesPicked.
+  const pasteCounterRef = useRef(0);
+
+  /** Paste-from-clipboard image attachment.
+   *
+   *  Browser clipboard image items arrive as `File`s whose `name` is
+   *  often a generic "image.png" (Chrome) or empty (Firefox/Safari),
+   *  so two consecutive screenshot pastes collide on the name+size
+   *  dedup the file-picker uses. Re-tag each pasted image with a
+   *  per-paste unique name so dedup keeps them apart and the upload
+   *  pipeline (which expects a non-empty filename) is happy.
+   *
+   *  Falls through to onFilesPicked via direct File[] (NOT through
+   *  the DataTransfer constructor — that throws on Safari < 14.1
+   *  and old Edge, silently aborting the paste).
+   *
+   *  Only intercepts the paste when the clipboard has at least one
+   *  image; text-only pastes fall through to the textarea's default
+   *  behaviour. */
   const mimeToExt = (mime: string): string => {
+    // Avoid raw `mime.split("/")[1]` — that yields `"svg+xml"`,
+    // `"jpeg"`, `"webp"` etc. which produce ugly filenames and may
+    // trip server-side extension allowlists. Map known types
+    // explicitly; unknown falls back to a safe default.
     if (mime === "image/svg+xml") return "svg";
     if (mime === "image/jpeg") return "jpg";
     if (mime === "image/png") return "png";
@@ -292,16 +873,26 @@ function MyChatPanel({ workspaceId, data }: Props) {
       const file = item.getAsFile();
       if (!file) continue;
       const ext = mimeToExt(file.type);
-      const stamp = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
+      const stamp = new Date()
+        .toISOString()
+        .replace(/[:.]/g, "-")
+        .slice(0, 19);
       const seq = pasteCounterRef.current++;
       const fname = `pasted-${stamp}-${seq}-${i}.${ext}`;
       imageFiles.push(new File([file], fname, { type: file.type }));
     }
     if (imageFiles.length === 0) return;
     e.preventDefault();
+    // Reuse the picker path so file-size guards, dedup, and pending-
+    // list state all run through the same code. Build a synthetic
+    // FileList-like object to avoid the DataTransfer constructor —
+    // that's missing on Safari < 14.1 / old Edge and would silently
+    // throw, leaving the paste a no-op.
     addPastedFiles(imageFiles);
   };
 
+  // Variant of onFilesPicked that accepts a File[] directly, sidestepping
+  // the DataTransfer-FileList round-trip. Same dedup + state shape.
   const addPastedFiles = (files: File[]) => {
     setPendingFiles((prev) => {
       const keyed = new Set(prev.map((f) => `${f.name}:${f.size}`));
@@ -309,6 +900,11 @@ function MyChatPanel({ workspaceId, data }: Props) {
     });
   };
 
+  // Drag-and-drop staging. dragDepthRef counts enter vs leave events so
+  // the overlay doesn't flicker when the cursor crosses nested children
+  // (textarea, buttons) — dragenter/dragleave fire for every boundary.
+  const [dragOver, setDragOver] = useState(false);
+  const dragDepthRef = useRef(0);
   const dropEnabled = agentReachable && !sending && !uploading;
   const isFileDrag = (e: React.DragEvent) =>
     Array.from(e.dataTransfer.types || []).includes("Files");
@@ -338,6 +934,9 @@ function MyChatPanel({ workspaceId, data }: Props) {
   };
 
   const downloadAttachment = (att: ChatAttachment) => {
+    // Errors here are rare but user-visible (401 on a revoked token,
+    // 404 if the agent deleted the file). Surface via the inline
+    // error banner — the message list itself stays untouched.
     downloadChatFile(workspaceId, att).catch((e) => {
       setError(e instanceof Error ? `Download failed: ${e.message}` : "Download failed");
     });
@@ -363,54 +962,28 @@ function MyChatPanel({ workspaceId, data }: Props) {
           </div>
         </div>
       )}
-      {/* talk_to_user disabled banner — shown when the workspace has
-           talk_to_user_enabled=false. The agent cannot send canvas messages;
-           the user can re-enable the ability from here without opening settings. */}
-      {data.talkToUserEnabled === false && (
-        <div className="flex items-center gap-2 px-3 py-2 bg-surface-sunken border-b border-line/40 shrink-0">
-          <svg width="14" height="14" viewBox="0 0 16 16" fill="none" aria-hidden="true" className="shrink-0 text-ink-mid">
-            <path d="M8 1a7 7 0 1 0 0 14A7 7 0 0 0 8 1Zm0 10.5a.75.75 0 1 1 0-1.5.75.75 0 0 1 0 1.5ZM8 4a.75.75 0 0 1 .75.75v4a.75.75 0 0 1-1.5 0v-4A.75.75 0 0 1 8 4Z" fill="currentColor"/>
-          </svg>
-          <span className="text-[10px] text-ink-mid flex-1">
-            Agent is not enabled to chat with you.
-          </span>
-          <button
-            onClick={async () => {
-              try {
-                await api.patch(`/workspaces/${workspaceId}/abilities`, { talk_to_user_enabled: true });
-                useCanvasStore.getState().updateNodeData(workspaceId, { talkToUserEnabled: true });
-              } catch {
-                // ignore — user will see no change and can retry
-              }
-            }}
-            className="px-2 py-0.5 text-[10px] font-medium bg-accent/10 hover:bg-accent/20 text-accent rounded border border-accent/30 transition-colors shrink-0"
-          >
-            Enable
-          </button>
-        </div>
-      )}
       {/* Messages */}
       <div ref={containerRef} className="flex-1 overflow-y-auto p-3 space-y-3">
-        {history.loading && (
+        {loading && (
           <div className="text-xs text-ink-mid text-center py-4">Loading chat history...</div>
         )}
-        {!history.loading && history.loadError !== null && history.messages.length === 0 && (
+        {!loading && loadError !== null && messages.length === 0 && (
           <div
             role="alert"
             className="mx-2 mt-2 rounded-lg border border-red-800/50 bg-red-950/30 px-3 py-2.5"
           >
             <p className="text-[11px] text-bad mb-1.5">
-              Failed to load chat history: {history.loadError}
+              Failed to load chat history: {loadError}
             </p>
             <button
-              onClick={history.loadInitial}
+              onClick={loadInitial}
               className="text-[10px] px-2 py-0.5 rounded bg-red-800 text-red-200 hover:bg-red-700 transition-colors"
             >
               Retry
             </button>
           </div>
         )}
-        {!history.loading && history.loadError === null && history.messages.length === 0 && (
+        {!loading && loadError === null && messages.length === 0 && (
           <div className="text-xs text-ink-mid text-center py-8">
             No messages yet. Send a message to start chatting with this agent.
           </div>
@@ -428,12 +1001,12 @@ function MyChatPanel({ workspaceId, data }: Props) {
             instead of showing a "no more messages" footer — the user's
             scroll resting against the top of the conversation IS the
             signal. */}
-        {history.hasMore && history.messages.length > 0 && (
+        {hasMore && messages.length > 0 && (
           <div ref={topRef} className="text-xs text-ink-mid text-center py-1">
-            {history.loadingOlder ? "Loading older messages…" : " "}
+            {loadingOlder ? "Loading older messages…" : " "}
           </div>
         )}
-        {history.messages.map((msg) => (
+        {messages.map((msg) => (
           <div key={msg.id} className={`flex ${msg.role === "user" ? "justify-end" : "justify-start"}`}>
             <div
               className={`max-w-[85%] rounded-lg px-3 py-2 text-xs ${
@@ -593,10 +1166,10 @@ function MyChatPanel({ workspaceId, data }: Props) {
       </div>
 
       {/* Error banner */}
-      {displayError && (
+      {error && (
         <div className="px-3 py-2 bg-red-900/20 border-t border-red-800/30">
           <div className="flex items-center justify-between">
-            <span className="text-[10px] text-red-300">{displayError}</span>
+            <span className="text-[10px] text-red-300">{error}</span>
             {!isOnline && (
               <button
                 onClick={() => setConfirmRestart(true)}
@@ -664,7 +1237,7 @@ function MyChatPanel({ workspaceId, data }: Props) {
                 e.keyCode !== 229
               ) {
                 e.preventDefault();
-                handleSend();
+                sendMessage();
               }
             }}
             onPaste={onPasteIntoComposer}
@@ -674,7 +1247,7 @@ function MyChatPanel({ workspaceId, data }: Props) {
             className="flex-1 bg-surface-card border border-line rounded-lg px-3 py-2 text-xs text-ink placeholder-ink-soft dark:bg-zinc-800 dark:border-zinc-600 dark:placeholder-zinc-500 focus:outline-none focus:border-accent focus-visible:ring-2 focus-visible:ring-accent/40 resize-none disabled:opacity-50"
           />
           <button
-            onClick={handleSend}
+            onClick={sendMessage}
             disabled={(!input.trim() && pendingFiles.length === 0) || !agentReachable || sending || uploading}
             className="px-4 py-2 bg-accent-strong hover:bg-accent text-xs font-medium rounded-lg text-white disabled:opacity-30 transition-colors shrink-0"
           >

canvas/src/components/tabs/ConfigTab.tsx

@@ -176,7 +176,7 @@ export function deriveProvidersFromModels(models: ModelSpec[]): string[] {
 // exactly the point of the platform adaptor. The deep `~/.hermes/
 // config.yaml` on the container is a separate runtime-internal file,
 // not this one.
-const RUNTIMES_WITH_OWN_CONFIG = new Set<string>(["external", "kimi", "kimi-cli", "openclaw"]);
+const RUNTIMES_WITH_OWN_CONFIG = new Set<string>(["external", "kimi", "kimi-cli"]);
 
 const FALLBACK_RUNTIME_OPTIONS: RuntimeOption[] = [
   { value: "", label: "LangGraph (default)", models: [], providers: [] },

canvas/src/components/tabs/FilesTab.tsx

@@ -45,54 +45,11 @@ export function FilesTab({ workspaceId, data }: Props) {
   if (data && isExternalLikeRuntime(data.runtime)) {
     return <NotAvailablePanel runtime={data.runtime} />;
   }
-  return <PlatformOwnedFilesTab workspaceId={workspaceId} runtime={data?.runtime} />;
+  return <PlatformOwnedFilesTab workspaceId={workspaceId} />;
 }
 
-/** Picks the initial root for the FilesTab dropdown based on the
- *  workspace's runtime. Decision: per-runtime default (Hongming
- *  2026-05-15, internal#425 Decisions §2).
- *
- *  - openclaw → `/agent-home` (the agent's identity/state — the
- *    user-facing interesting files for that runtime live in
- *    `~/.openclaw/` inside the container, which `/agent-home` maps to
- *    via the Phase 2b docker-exec backend).
- *  - everything else (claude-code, hermes, external-like, undefined)
- *    → `/configs` (the legacy default — managed config that flows
- *    through the per-runtime indirection in
- *    workspace-server/internal/handlers/template_files_eic.go).
- *
- *  When the runtime is undefined (legacy callers that don't thread
- *  `data` through, or a workspace whose runtime field hasn't loaded
- *  yet) the default is `/configs` — matches today's behaviour, no
- *  surprise.
- *
- *  Note on `/agent-home` pre-Phase-2b: the backend short-circuits
- *  with HTTP 501 and the canonical "implementation pending" body.
- *  The tab renders empty + the error banner explains. This is by
- *  design — lets us land the canvas UX before the backend ships,
- *  per the RFC's phased rollout. The 501 is graceful: it doesn't
- *  poison error toasts or generate "workspace not found" noise.
- *
- *  Adding a new runtime that should default to `/agent-home`: add it
- *  to the agentHomeDefaultRuntimes set below. Adding a runtime that
- *  should default to a different root: extend this function. */
-const agentHomeDefaultRuntimes = new Set(["openclaw"]);
-
-function defaultRootForRuntime(runtime: string | undefined): string {
-  if (runtime && agentHomeDefaultRuntimes.has(runtime)) {
-    return "/agent-home";
-  }
-  return "/configs";
-}
-
-function PlatformOwnedFilesTab({
-  workspaceId,
-  runtime,
-}: {
-  workspaceId: string;
-  runtime?: string;
-}) {
-  const [root, setRoot] = useState(() => defaultRootForRuntime(runtime));
+function PlatformOwnedFilesTab({ workspaceId }: { workspaceId: string }) {
+  const [root, setRoot] = useState("/configs");
   const [selectedFile, setSelectedFile] = useState<string | null>(null);
   const [fileContent, setFileContent] = useState("");
   const [editContent, setEditContent] = useState("");

canvas/src/components/tabs/FilesTab/FileEditor.tsx

@@ -3,22 +3,6 @@
 import { useRef } from "react";
 import { getIcon } from "./tree";
 
-// secretShapeMarker is the canonical body the workspace-server Files
-// API returns when a file's path OR content matched a credential
-// regex (internal#425 RFC, Phase 2b — backed by
-// workspace-server/internal/secrets.ScanBytes). The marker is a
-// fixed prefix so the canvas can detect it without parsing JSON and
-// without round-tripping the matched bytes through the editor (which
-// would defeat the purpose — clipboard, browser history, log
-// surfaces would all see them).
-//
-// Today (Phase 1 / before 2b ships) the backend returns 501 for the
-// only root that uses this path, so the marker is dead code until
-// 2b lands. Wiring it in now keeps the canvas + backend contracts
-// aligned in one PR rather than a follow-up. The constant is
-// importable so a future test can pin the exact string.
-export const SECRET_SHAPE_DENIED_MARKER = "<denied: secret-shape>";
-
 interface Props {
   selectedFile: string | null;
   fileContent: string;
@@ -47,22 +31,6 @@ export function FileEditor({
   const editorRef = useRef<HTMLTextAreaElement>(null);
   const isDirty = editContent !== fileContent;
 
-  // internal#425 Phase 3: detect the secret-shape denial marker and
-  // render a placeholder instead of the editor. The marker comes
-  // from workspace-server Phase 2b (secrets.ScanBytes) which refuses
-  // to surface the file's bytes. We deliberately don't expose
-  // the matched pattern's Name here — the canvas just shows the
-  // generic denial. The Files API log surface has the Pattern.Name
-  // for operators who need to debug a false positive.
-  const isSecretShapeDenied = fileContent === SECRET_SHAPE_DENIED_MARKER;
-
-  // /agent-home is read-only from the canvas (Phase 2b ships read +
-  // delete; Phase-2b-followup may add write). Edits to /configs are
-  // unchanged. Until 2b ships, /agent-home returns 501 so this
-  // read-only gate is also dead code, but wiring it in now keeps
-  // the UI honest the moment 2b lands without a follow-up canvas PR.
-  const isReadOnlyRoot = root !== "/configs";
-
   if (!selectedFile) {
     return (
       <div className="flex-1 flex items-center justify-center">
@@ -107,42 +75,11 @@ export function FileEditor({
       {/* Editor area */}
       {loadingFile ? (
         <div className="p-4 text-xs text-ink-mid">Loading...</div>
-      ) : isSecretShapeDenied ? (
-        // Files API refused to surface this file's bytes because its
-        // path or content matched a credential regex
-        // (workspace-server/internal/secrets, internal#425 Phase 2b).
-        // We render a placeholder INSTEAD OF the textarea so the
-        // matched bytes never enter the DOM. Clipboard / view-source
-        // / element-inspector all see the placeholder, not the
-        // credential.
-        <div
-          role="region"
-          aria-label="File content denied"
-          className="flex-1 flex items-center justify-center p-6 bg-surface"
-        >
-          <div className="max-w-md text-center space-y-2">
-            <div className="text-2xl opacity-40">🛡️</div>
-            <p className="text-[11px] font-mono text-warm">
-              {SECRET_SHAPE_DENIED_MARKER}
-            </p>
-            <p className="text-[10px] text-ink-mid leading-relaxed">
-              The platform refused to surface this file because its
-              path or content matched a credential-shape pattern.
-              The bytes never left the workspace container.
-            </p>
-            <p className="text-[10px] text-ink-mid leading-relaxed">
-              If this is a false positive (test fixture, docs example,
-              or content that happens to share a credential's shape),
-              rename the file or adjust the content via the workspace
-              terminal so the regex no longer matches, then refresh.
-            </p>
-          </div>
-        </div>
       ) : (
         <textarea
           ref={editorRef}
           value={editContent}
-          readOnly={isReadOnlyRoot}
+          readOnly={root !== "/configs"}
           onChange={(e) => setEditContent(e.target.value)}
           onKeyDown={(e) => {
             if ((e.metaKey || e.ctrlKey) && e.key === "s") {

canvas/src/components/tabs/FilesTab/FilesToolbar.tsx

@@ -38,15 +38,6 @@ export function FilesToolbar({
           <option value="/home">/home</option>
           <option value="/workspace">/workspace</option>
           <option value="/plugins">/plugins</option>
-          {/* internal#425 Phase 1+3: container-internal $HOME root.
-              Backend lands the docker-exec dispatch in Phase 2b. Until
-              then the stub returns 501 with a canonical
-              "implementation pending" message — the dropdown renders
-              the option so the canvas affordance is design-frozen
-              even before the backend ships.
-              Runtime-default selection logic in FilesTab.tsx picks
-              this as the initial value for openclaw workspaces. */}
-          <option value="/agent-home">/agent-home</option>
         </select>
         <span className="text-[10px] text-ink-mid">{fileCount} files</span>
       </div>

canvas/src/components/tabs/FilesTab/__tests__/agentHome.test.tsx

@@ -1,181 +0,0 @@
-// @vitest-environment jsdom
-/**
- * Tests for the /agent-home root selector + per-runtime default-root
- * + secret-shape denial placeholder (internal#425 Phase 3).
- *
- * Separate file so the diff is reviewable as a unit and the existing
- * FilesToolbar / FileEditor / FilesTab tests don't have to grow
- * agent-home-specific cases. Once Phase 2b lands, the read-only +
- * 501-stub assertions here can be tightened (or moved into the main
- * test file as the agent-home root becomes a first-class affordance).
- */
-import React from "react";
-import { render, screen, cleanup } from "@testing-library/react";
-import { afterEach, describe, expect, it, vi } from "vitest";
-
-import { FilesToolbar } from "../FilesToolbar";
-import {
-  FileEditor,
-  SECRET_SHAPE_DENIED_MARKER,
-} from "../FileEditor";
-
-afterEach(cleanup);
-
-describe("internal#425 Phase 3 — /agent-home root selector", () => {
-  it("dropdown includes /agent-home as an option", () => {
-    // Pins the affordance is in the DOM even pre-Phase-2b — the
-    // canvas design freezes today, the backend lands the dispatch
-    // later. Without this, a future refactor that drops the option
-    // would silently regress the RFC's Phase 1 contract (canvas
-    // visibility) without breaking any other test.
-    render(
-      <FilesToolbar
-        root="/configs"
-        setRoot={vi.fn()}
-        fileCount={0}
-        onNewFile={vi.fn()}
-        onUpload={vi.fn()}
-        onDownloadAll={vi.fn()}
-        onClearAll={vi.fn()}
-        onRefresh={vi.fn()}
-      />,
-    );
-    const select = screen.getByRole("combobox", {
-      name: /file root directory/i,
-    }) as HTMLSelectElement;
-    const values = Array.from(select.options).map((o) => o.value);
-    expect(values).toContain("/agent-home");
-  });
-
-  it("dropdown shows /agent-home as the SELECTED root when prop is /agent-home", () => {
-    render(
-      <FilesToolbar
-        root="/agent-home"
-        setRoot={vi.fn()}
-        fileCount={0}
-        onNewFile={vi.fn()}
-        onUpload={vi.fn()}
-        onDownloadAll={vi.fn()}
-        onClearAll={vi.fn()}
-        onRefresh={vi.fn()}
-      />,
-    );
-    const select = screen.getByRole("combobox", {
-      name: /file root directory/i,
-    }) as HTMLSelectElement;
-    expect(select.value).toBe("/agent-home");
-  });
-});
-
-describe("internal#425 Phase 3 — secret-shape denial placeholder", () => {
-  // Files API Phase 2b returns SECRET_SHAPE_DENIED_MARKER as the file
-  // body when the file's path or content matched a credential regex.
-  // The editor MUST render the marker as a placeholder, not pump it
-  // through the textarea — that would put the marker (and any future
-  // matched bytes if the backend contract changes) into the DOM
-  // value, clipboard, and inspector.
-
-  it("renders the denial placeholder INSTEAD of the textarea when fileContent is the marker", () => {
-    render(
-      <FileEditor
-        selectedFile="agent/.openclaw/secrets.env"
-        fileContent={SECRET_SHAPE_DENIED_MARKER}
-        editContent={SECRET_SHAPE_DENIED_MARKER}
-        setEditContent={vi.fn()}
-        loadingFile={false}
-        saving={false}
-        success={null}
-        root="/agent-home"
-        onSave={vi.fn()}
-        onDownload={vi.fn()}
-      />,
-    );
-    // Placeholder region present
-    expect(
-      screen.getByRole("region", { name: /file content denied/i }),
-    ).toBeTruthy();
-    // Marker text visible (so a debugging operator sees the canonical
-    // contract string without having to dig into the source).
-    expect(screen.getByText(SECRET_SHAPE_DENIED_MARKER)).toBeTruthy();
-    // Critically: NO textarea — the bytes never reach a controlled
-    // input. A regression that re-introduces the textarea path would
-    // make the matched marker (and any future content) selectable +
-    // copyable.
-    expect(screen.queryByRole("textbox")).toBeNull();
-  });
-
-  it("renders the textarea normally when fileContent is regular content", () => {
-    render(
-      <FileEditor
-        selectedFile="config.yaml"
-        fileContent="name: openclaw\n"
-        editContent="name: openclaw\n"
-        setEditContent={vi.fn()}
-        loadingFile={false}
-        saving={false}
-        success={null}
-        root="/configs"
-        onSave={vi.fn()}
-        onDownload={vi.fn()}
-      />,
-    );
-    expect(screen.getByRole("textbox")).toBeTruthy();
-    expect(screen.queryByRole("region", { name: /file content denied/i }))
-      .toBeNull();
-  });
-
-  it("/agent-home renders textarea READ-ONLY for non-denied content", () => {
-    // Phase 2b ships read + delete on /agent-home; write semantics
-    // are decided later. Until then, the canvas presents the editor
-    // as read-only so a user can't type into a buffer that the
-    // backend will refuse to PUT. Without this gate, the user would
-    // edit, hit Save, get a 501, and lose their context for why.
-    render(
-      <FileEditor
-        selectedFile=".openclaw/agent-card.json"
-        fileContent='{"name":"openclaw"}'
-        editContent='{"name":"openclaw"}'
-        setEditContent={vi.fn()}
-        loadingFile={false}
-        saving={false}
-        success={null}
-        root="/agent-home"
-        onSave={vi.fn()}
-        onDownload={vi.fn()}
-      />,
-    );
-    const textarea = screen.getByRole("textbox") as HTMLTextAreaElement;
-    expect(textarea.readOnly).toBe(true);
-  });
-
-  it("/configs renders textarea WRITABLE (regression guard for the read-only gate)", () => {
-    render(
-      <FileEditor
-        selectedFile="config.yaml"
-        fileContent="name: x\n"
-        editContent="name: x\n"
-        setEditContent={vi.fn()}
-        loadingFile={false}
-        saving={false}
-        success={null}
-        root="/configs"
-        onSave={vi.fn()}
-        onDownload={vi.fn()}
-      />,
-    );
-    const textarea = screen.getByRole("textbox") as HTMLTextAreaElement;
-    expect(textarea.readOnly).toBe(false);
-  });
-});
-
-describe("internal#425 Phase 3 — marker constant is the canonical string", () => {
-  // The marker string is part of the canvas <-> workspace-server
-  // contract. The workspace-server emits this exact body; the canvas
-  // detects it by exact-equality. A typo on either side would
-  // silently break detection — the canvas would render the literal
-  // string in the textarea instead of the placeholder. Pin the
-  // contract value here.
-  it("matches the contract value '<denied: secret-shape>'", () => {
-    expect(SECRET_SHAPE_DENIED_MARKER).toBe("<denied: secret-shape>");
-  });
-});

canvas/src/components/tabs/chat/hooks/index.ts

@@ -1,3 +0,0 @@
-export { useChatHistory } from "./useChatHistory";
-export { useChatSend } from "./useChatSend";
-export { useChatSocket } from "./useChatSocket";

canvas/src/components/tabs/chat/hooks/resolveWorkspaceName.ts

@@ -1,11 +0,0 @@
-"use client";
-
-import { useCanvasStore, type WorkspaceNodeData } from "@/store/canvas";
-
-/** Resolve a workspace ID to its human-readable name.
- *  Falls back to the first 8 chars of the ID. */
-export function resolveWorkspaceName(id: string): string {
-  const nodes = useCanvasStore.getState().nodes;
-  const node = nodes.find((n) => n.id === id);
-  return (node?.data as WorkspaceNodeData)?.name || id.slice(0, 8);
-}

canvas/src/components/tabs/chat/hooks/useChatHistory.ts

@@ -1,134 +0,0 @@
-"use client";
-
-import { useCallback, useEffect, useRef, useState } from "react";
-import { api } from "@/lib/api";
-import { type ChatMessage, appendMessageDeduped as appendMessageDedupedFn } from "../types";
-
-const INITIAL_HISTORY_LIMIT = 10;
-const OLDER_HISTORY_BATCH = 20;
-
-async function loadMessagesFromDB(
-  workspaceId: string,
-  limit: number,
-  beforeTs?: string,
-): Promise<{ messages: ChatMessage[]; error: string | null; reachedEnd: boolean }> {
-  try {
-    const params = new URLSearchParams({ limit: String(limit) });
-    if (beforeTs) params.set("before_ts", beforeTs);
-    const resp = await api.get<{ messages: ChatMessage[]; reached_end: boolean }>(
-      `/workspaces/${workspaceId}/chat-history?${params.toString()}`,
-    );
-    return {
-      messages: resp.messages ?? [],
-      error: null,
-      reachedEnd: resp.reached_end,
-    };
-  } catch (err) {
-    return {
-      messages: [],
-      error: err instanceof Error ? err.message : "Failed to load chat history",
-      reachedEnd: true,
-    };
-  }
-}
-
-export interface ScrollAnchor {
-  savedDistanceFromBottom: number;
-  expectFirstIdNotEqual: string | null;
-}
-
-export function useChatHistory(
-  workspaceId: string,
-  containerRef?: React.RefObject<HTMLDivElement | null>,
-) {
-  const [messages, setMessages] = useState<ChatMessage[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [loadError, setLoadError] = useState<string | null>(null);
-  const [loadingOlder, setLoadingOlder] = useState(false);
-  const [hasMore, setHasMore] = useState(true);
-
-  const fetchTokenRef = useRef(0);
-  const oldestMessageRef = useRef<ChatMessage | null>(null);
-  const hasMoreRef = useRef(true);
-  const inflightRef = useRef(false);
-  const scrollAnchorRef = useRef<ScrollAnchor | null>(null);
-
-  useEffect(() => {
-    oldestMessageRef.current = messages[0] ?? null;
-  }, [messages]);
-
-  useEffect(() => {
-    hasMoreRef.current = hasMore;
-  }, [hasMore]);
-
-  const loadInitial = useCallback(() => {
-    setLoading(true);
-    setLoadError(null);
-    setHasMore(true);
-    fetchTokenRef.current += 1;
-    const myToken = fetchTokenRef.current;
-    return loadMessagesFromDB(workspaceId, INITIAL_HISTORY_LIMIT).then(
-      ({ messages: msgs, error: fetchErr, reachedEnd }) => {
-        if (fetchTokenRef.current !== myToken) return;
-        setMessages(msgs);
-        setLoadError(fetchErr);
-        setHasMore(!reachedEnd);
-        setLoading(false);
-      },
-    );
-  }, [workspaceId]);
-
-  useEffect(() => {
-    loadInitial();
-  }, [loadInitial]);
-
-  const loadOlder = useCallback(async () => {
-    if (inflightRef.current || !hasMoreRef.current) return;
-    const oldest = oldestMessageRef.current;
-    if (!oldest) return;
-    const container = containerRef?.current;
-    if (!container) return;
-    inflightRef.current = true;
-    scrollAnchorRef.current = {
-      savedDistanceFromBottom: container.scrollHeight - container.scrollTop,
-      expectFirstIdNotEqual: oldest.id,
-    };
-    fetchTokenRef.current += 1;
-    const myToken = fetchTokenRef.current;
-    setLoadingOlder(true);
-    try {
-      const { messages: older, reachedEnd } = await loadMessagesFromDB(
-        workspaceId,
-        OLDER_HISTORY_BATCH,
-        oldest.timestamp,
-      );
-      if (fetchTokenRef.current !== myToken) {
-        scrollAnchorRef.current = null;
-        return;
-      }
-      if (older.length > 0) {
-        setMessages((prev) => [...older, ...prev]);
-      } else {
-        scrollAnchorRef.current = null;
-      }
-      setHasMore(!reachedEnd);
-    } finally {
-      setLoadingOlder(false);
-      inflightRef.current = false;
-    }
-  }, [workspaceId, containerRef]);
-
-  return {
-    messages,
-    loading,
-    loadError,
-    loadingOlder,
-    hasMore,
-    loadInitial,
-    loadOlder,
-    appendMessageDeduped: (msg: ChatMessage) =>
-      setMessages((prev) => appendMessageDedupedFn(prev, msg)),
-    setMessages,
-    scrollAnchorRef,
-  };
-}

canvas/src/components/tabs/chat/hooks/useChatSend.ts

@@ -1,182 +0,0 @@
-"use client";
-
-import { useCallback, useRef, useState } from "react";
-import { api } from "@/lib/api";
-import { uploadChatFiles } from "../uploads";
-import { createMessage, type ChatMessage, type ChatAttachment } from "../types";
-import { extractFilesFromTask } from "../message-parser";
-
-interface A2APart {
-  kind: string;
-  text?: string;
-  file?: {
-    name?: string;
-    mimeType?: string;
-    uri?: string;
-    size?: number;
-  };
-}
-
-interface A2AResponse {
-  result?: {
-    parts?: A2APart[];
-    artifacts?: Array<{ parts: A2APart[] }>;
-  };
-}
-
-export function extractReplyText(resp: A2AResponse): string {
-  const collect = (parts: A2APart[] | undefined): string => {
-    if (!parts) return "";
-    return parts
-      .filter((p) => p.kind === "text")
-      .map((p) => p.text ?? "")
-      .filter(Boolean)
-      .join("\n");
-  };
-  const result = resp?.result;
-  const collected: string[] = [];
-  const fromParts = collect(result?.parts);
-  if (fromParts) collected.push(fromParts);
-  if (result?.artifacts) {
-    for (const a of result.artifacts) {
-      const t = collect(a.parts);
-      if (t) collected.push(t);
-    }
-  }
-  return collected.join("\n");
-}
-
-export interface UseChatSendOptions {
-  getHistoryMessages: () => ChatMessage[];
-  onUserMessage?: (msg: ChatMessage) => void;
-  onAgentMessage?: (msg: ChatMessage) => void;
-}
-
-export function useChatSend(workspaceId: string, options: UseChatSendOptions) {
-  const [sending, setSending] = useState(false);
-  const [uploading, setUploading] = useState(false);
-  const [error, setError] = useState<string | null>(null);
-  const sendInFlightRef = useRef(false);
-  const sendingFromAPIRef = useRef(false);
-  const sendTokenRef = useRef(0);
-  const optionsRef = useRef(options);
-  optionsRef.current = options;
-
-  const releaseSendGuards = useCallback(() => {
-    setSending(false);
-    sendingFromAPIRef.current = false;
-    sendInFlightRef.current = false;
-  }, []);
-
-  const clearError = useCallback(() => setError(null), []);
-
-  const sendMessage = useCallback(
-    async (text: string, files: File[] = []) => {
-      const trimmed = text.trim();
-      if ((!trimmed && files.length === 0) || sending || uploading) return;
-      if (sendInFlightRef.current) return;
-      sendInFlightRef.current = true;
-
-      let uploaded: ChatAttachment[] = [];
-      if (files.length > 0) {
-        setUploading(true);
-        try {
-          uploaded = await uploadChatFiles(workspaceId, files);
-        } catch (e) {
-          setUploading(false);
-          sendInFlightRef.current = false;
-          setError(
-            e instanceof Error ? `Upload failed: ${e.message}` : "Upload failed",
-          );
-          return;
-        }
-        setUploading(false);
-      }
-
-      const userMsg = createMessage("user", trimmed, uploaded);
-      optionsRef.current.onUserMessage?.(userMsg);
-
-      setSending(true);
-      sendingFromAPIRef.current = true;
-      setError(null);
-      const myToken = ++sendTokenRef.current;
-
-      const history = optionsRef.current
-        .getHistoryMessages()
-        .filter((m) => m.role === "user" || m.role === "agent")
-        .slice(-20)
-        .map((m) => ({
-          role: m.role === "user" ? "user" : "agent",
-          parts: [{ kind: "text", text: m.content }],
-        }));
-
-      const parts: A2APart[] = [];
-      if (trimmed) parts.push({ kind: "text", text: trimmed });
-      for (const att of uploaded) {
-        parts.push({
-          kind: "file",
-          file: {
-            name: att.name,
-            mimeType: att.mimeType,
-            uri: att.uri,
-            size: att.size,
-          },
-        });
-      }
-
-      api
-        .post<A2AResponse>(
-          `/workspaces/${workspaceId}/a2a`,
-          {
-            method: "message/send",
-            params: {
-              message: {
-                role: "user",
-                messageId: crypto.randomUUID(),
-                parts,
-              },
-              metadata: { history },
-            },
-          },
-          { timeoutMs: 120_000 },
-        )
-        .then((resp) => {
-          if (sendTokenRef.current !== myToken) return;
-          if (!sendingFromAPIRef.current) {
-            sendInFlightRef.current = false;
-            return;
-          }
-          const replyText = extractReplyText(resp);
-          const replyFiles = extractFilesFromTask(
-            (resp?.result ?? {}) as Record<string, unknown>,
-          );
-          if (replyText || replyFiles.length > 0) {
-            optionsRef.current.onAgentMessage?.(
-              createMessage("agent", replyText, replyFiles),
-            );
-          }
-          releaseSendGuards();
-        })
-        .catch(() => {
-          if (sendTokenRef.current !== myToken) return;
-          if (!sendingFromAPIRef.current) {
-            sendInFlightRef.current = false;
-            return;
-          }
-          releaseSendGuards();
-          setError("Failed to send message — agent may be unreachable");
-        });
-    },
-    [workspaceId, sending, uploading],
-  );
-
-  return {
-    sending,
-    uploading,
-    sendMessage,
-    error,
-    clearError,
-    releaseSendGuards,
-    sendingFromAPIRef,
-  };
-}

canvas/src/components/tabs/chat/hooks/useChatSocket.ts

@@ -1,100 +0,0 @@
-"use client";
-
-import { useCallback, useEffect, useRef } from "react";
-import { useCanvasStore, type WorkspaceNodeData } from "@/store/canvas";
-import { useSocketEvent } from "@/hooks/useSocketEvent";
-import { createMessage, type ChatMessage } from "../types";
-
-export interface UseChatSocketCallbacks {
-  onAgentMessage?: (msg: ChatMessage) => void;
-  onActivityLog?: (entry: string) => void;
-  onSendComplete?: () => void;
-  onSendError?: (error: string) => void;
-}
-
-export function useChatSocket(
-  workspaceId: string,
-  callbacks: UseChatSocketCallbacks,
-): void {
-  const callbacksRef = useRef(callbacks);
-  callbacksRef.current = callbacks;
-
-  // Agent push messages from global store
-  const pendingAgentMsgs = useCanvasStore((s) => s.agentMessages[workspaceId]);
-  useEffect(() => {
-    if (!pendingAgentMsgs || pendingAgentMsgs.length === 0) return;
-    const consume = useCanvasStore.getState().consumeAgentMessages;
-    const msgs = consume(workspaceId);
-    for (const m of msgs) {
-      callbacksRef.current.onAgentMessage?.(
-        createMessage("agent", m.content, m.attachments),
-      );
-    }
-    if (msgs.length > 0) {
-      callbacksRef.current.onSendComplete?.();
-    }
-  }, [pendingAgentMsgs, workspaceId]);
-
-  const resolveWorkspaceName = useCallback((id: string) => {
-    const nodes = useCanvasStore.getState().nodes;
-    const node = nodes.find((n) => n.id === id);
-    return (node?.data as WorkspaceNodeData)?.name || id.slice(0, 8);
-  }, []);
-
-  useSocketEvent((msg) => {
-    try {
-      if (msg.event === "ACTIVITY_LOGGED") {
-        if (msg.workspace_id !== workspaceId) return;
-
-        const p = msg.payload || {};
-        const type = p.activity_type as string;
-        const method = (p.method as string) || "";
-        const status = (p.status as string) || "";
-        const targetId = (p.target_id as string) || "";
-        const durationMs = p.duration_ms as number | undefined;
-        const summary = (p.summary as string) || "";
-
-        let line = "";
-        if (type === "a2a_receive" && method === "message/send") {
-          const targetName = resolveWorkspaceName(targetId || msg.workspace_id);
-          if (status === "ok" && durationMs) {
-            const sec = Math.round(durationMs / 1000);
-            line = `← ${targetName} responded (${sec}s)`;
-            const own = (targetId || msg.workspace_id) === workspaceId;
-            if (own) callbacksRef.current.onSendComplete?.();
-          } else if (status === "error") {
-            line = `⚠ ${targetName} error`;
-            const own = (targetId || msg.workspace_id) === workspaceId;
-            if (own) {
-              callbacksRef.current.onSendComplete?.();
-              callbacksRef.current.onSendError?.(
-                "Agent error (Exception) — see workspace logs for details.",
-              );
-            }
-          }
-        } else if (type === "a2a_send") {
-          const targetName = resolveWorkspaceName(targetId);
-          line = `→ Delegating to ${targetName}...`;
-        } else if (type === "task_update") {
-          if (summary) line = `⟳ ${summary}`;
-        } else if (type === "agent_log") {
-          if (summary) line = summary;
-        }
-
-        if (line) {
-          callbacksRef.current.onActivityLog?.(line);
-        }
-      } else if (
-        msg.event === "TASK_UPDATED" &&
-        msg.workspace_id === workspaceId
-      ) {
-        const task = (msg.payload?.current_task as string) || "";
-        if (task) {
-          callbacksRef.current.onActivityLog?.(`⟳ ${task}`);
-        }
-      }
-    } catch {
-      /* ignore */
-    }
-  });
-}

canvas/src/components/tabs/chat/index.ts

@@ -1,5 +1,2 @@
 export { type ChatMessage, createMessage, appendMessageDeduped } from "./types";
 export { extractAgentText, extractTextsFromParts, extractResponseText } from "./message-parser";
-export { useChatHistory } from "./hooks/useChatHistory";
-export { useChatSend } from "./hooks/useChatSend";
-export { useChatSocket } from "./hooks/useChatSocket";

canvas/src/lib/api.ts

@@ -8,18 +8,14 @@ import { getTenantSlug } from "./tenant";
 export const PLATFORM_URL =
   process.env.NEXT_PUBLIC_PLATFORM_URL ?? "http://localhost:8080";
 
-// 35s is long enough for the slowest server-side path (EIC SSH
-// tunnel for tenant EC2 file operations, bounded server-side by
-// `eicFileOpTimeout = 30 * time.Second` in
-// workspace-server/internal/handlers/template_files_eic.go) so the
-// canvas surfaces the server's real error instead of aborting first
-// with a generic timeout. Shorter values caused "Save & Restart" to
-// time out at the client before the backend returned its 5xx. The
-// abort still propagates through AbortController so React components
-// can render a retry affordance. Callers that know an endpoint is
-// intentionally slow (org import walks a tree of workspaces with
-// server-side pacing) can pass `timeoutMs` to override.
-const DEFAULT_TIMEOUT_MS = 35_000;
+// 15s is long enough for slow CP queries but short enough that a
+// hung backend doesn't leave the UI spinning forever. The abort
+// propagates through AbortController so React components can observe
+// the error and render a retry affordance. Callers that know the
+// endpoint is intentionally slow (org import walks a tree of
+// workspaces with server-side pacing) can pass `timeoutMs` to
+// override.
+const DEFAULT_TIMEOUT_MS = 15_000;
 
 export interface RequestOptions {
   timeoutMs?: number;

canvas/src/store/canvas-topology.ts

@@ -519,10 +519,6 @@ export function buildNodesAndEdges(
         // #2054 — server-declared per-workspace provisioning timeout.
         // Falls through to the runtime profile when null/absent.
         provisionTimeoutMs: ws.provision_timeout_ms ?? null,
-        // Workspace abilities — defaults preserved for old platform versions
-        // that don't yet include these columns in the GET response.
-        broadcastEnabled: ws.broadcast_enabled ?? false,
-        talkToUserEnabled: ws.talk_to_user_enabled ?? true,
       },
     };
     if (hasParent) {

canvas/src/store/canvas.ts

@@ -99,13 +99,6 @@ export interface WorkspaceNodeData extends Record<string, unknown> {
    *  @/lib/runtimeProfiles. Lets a slow runtime declare its cold-boot
    *  expectation without a canvas release. */
   provisionTimeoutMs?: number | null;
-  /** When true the workspace may POST /broadcast to send org-wide messages.
-   *  Default false. Toggled by user/admin via PATCH /workspaces/:id/abilities. */
-  broadcastEnabled?: boolean;
-  /** When false the workspace cannot deliver canvas chat messages.
-   *  send_message_to_user / POST /notify return 403 and the canvas
-   *  shows a "not enabled" state with a button to re-enable. Default true. */
-  talkToUserEnabled?: boolean;
 }
 
 export type PanelTab = "details" | "skills" | "chat" | "terminal" | "config" | "schedule" | "channels" | "files" | "memory" | "traces" | "events" | "activity" | "audit";

canvas/src/store/socket.ts

@@ -299,9 +299,6 @@ export interface WorkspaceData {
    *  `@/lib/runtimeProfiles` when absent (the default behavior for any
    *  template that hasn't yet declared the field). */
   provision_timeout_ms?: number | null;
-  /** Workspace ability flags (migration 20260514). */
-  broadcast_enabled?: boolean;
-  talk_to_user_enabled?: boolean;
 }
 
 let socket: ReconnectingSocket | null = null;

tests/e2e/test_workspace_abilities_e2e.sh

@@ -1,296 +0,0 @@
-#!/usr/bin/env bash
-# E2E test: workspace broadcast and talk-to-user platform abilities.
-#
-# What this proves:
-#   1. talk_to_user_enabled (default true) — POST /notify works out-of-the-box.
-#   2. PATCH /workspaces/:id/abilities { talk_to_user_enabled: false } disables
-#      delivery: /notify → 403 with error="talk_to_user_disabled" + delegate hint.
-#   3. Re-enabling talk_to_user_enabled restores delivery.
-#   4. broadcast_enabled (default false) — POST /broadcast → 403 when disabled.
-#   5. PATCH { broadcast_enabled: true } enables fan-out.
-#   6. POST /broadcast delivers to all non-sender, non-removed workspaces:
-#      - Returns {"status":"sent","delivered":N}
-#      - Receiver's activity log has a broadcast_receive entry with the message.
-#      - Sender's activity log has a broadcast_sent entry.
-#   7. The sender itself does NOT receive a broadcast_receive entry.
-#
-# Usage:  tests/e2e/test_workspace_abilities_e2e.sh
-# Prereqs: workspace-server on http://localhost:8080, MOLECULE_ENV != production
-
-set -euo pipefail
-
-source "$(dirname "$0")/_lib.sh"
-
-PASS=0
-FAIL=0
-SENDER_ID=""
-RECEIVER_ID=""
-
-cleanup() {
-  for wid in "$SENDER_ID" "$RECEIVER_ID"; do
-    if [ -n "$wid" ]; then
-      curl -s -X DELETE "$BASE/workspaces/$wid?confirm=true" > /dev/null || true
-    fi
-  done
-}
-trap cleanup EXIT INT TERM
-
-assert() {
-  local label="$1" actual="$2" expected="$3"
-  if [ "$actual" = "$expected" ]; then
-    echo "  PASS — $label"
-    PASS=$((PASS+1))
-  else
-    echo "  FAIL — $label"
-    echo "         expected: $expected"
-    echo "         actual:   $actual"
-    FAIL=$((FAIL+1))
-  fi
-}
-
-assert_contains() {
-  local label="$1" haystack="$2" needle="$3"
-  if echo "$haystack" | grep -qF "$needle"; then
-    echo "  PASS — $label"
-    PASS=$((PASS+1))
-  else
-    echo "  FAIL — $label"
-    echo "         needle:   $needle"
-    echo "         haystack: $haystack"
-    FAIL=$((FAIL+1))
-  fi
-}
-
-assert_not_contains() {
-  local label="$1" haystack="$2" needle="$3"
-  if ! echo "$haystack" | grep -qF "$needle"; then
-    echo "  PASS — $label"
-    PASS=$((PASS+1))
-  else
-    echo "  FAIL — $label (unexpected match)"
-    echo "         needle:   $needle"
-    echo "         haystack: $haystack"
-    FAIL=$((FAIL+1))
-  fi
-}
-
-# ── Pre-sweep: remove any stale leftover workspaces from a prior aborted run ──
-echo "=== Setup ==="
-for NAME in "Abilities Sender" "Abilities Receiver"; do
-  PRIOR=$(curl -s "$BASE/workspaces" | python3 -c "
-import json, sys
-try:
-    print(' '.join(w['id'] for w in json.load(sys.stdin) if w.get('name') == '$NAME'))
-except Exception:
-    pass
-")
-  for _wid in $PRIOR; do
-    echo "Sweeping leftover '$NAME' workspace: $_wid"
-    curl -s -X DELETE "$BASE/workspaces/$_wid?confirm=true" > /dev/null || true
-  done
-done
-
-R=$(curl -s -X POST "$BASE/workspaces" -H "Content-Type: application/json" \
-  -d '{"name":"Abilities Sender","tier":1}')
-SENDER_ID=$(echo "$R" | python3 -c 'import json,sys;print(json.load(sys.stdin)["id"])' 2>/dev/null || true)
-[ -n "$SENDER_ID" ] || { echo "Failed to create sender workspace: $R"; exit 1; }
-echo "Created sender   workspace: $SENDER_ID"
-
-R=$(curl -s -X POST "$BASE/workspaces" -H "Content-Type: application/json" \
-  -d '{"name":"Abilities Receiver","tier":1}')
-RECEIVER_ID=$(echo "$R" | python3 -c 'import json,sys;print(json.load(sys.stdin)["id"])' 2>/dev/null || true)
-[ -n "$RECEIVER_ID" ] || { echo "Failed to create receiver workspace: $R"; exit 1; }
-echo "Created receiver workspace: $RECEIVER_ID"
-
-# Mint workspace-scoped bearer tokens (test-only endpoint, disabled in prod).
-SENDER_TOKEN=$(e2e_mint_test_token "$SENDER_ID")
-[ -n "$SENDER_TOKEN" ] || { echo "Failed to mint sender token"; exit 1; }
-SENDER_AUTH="Authorization: Bearer $SENDER_TOKEN"
-
-# Admin token — any live workspace bearer satisfies AdminAuth in local dev.
-# In production-like envs, set MOLECULE_ADMIN_TOKEN.
-ADMIN_TOKEN="${MOLECULE_ADMIN_TOKEN:-$SENDER_TOKEN}"
-ADMIN_AUTH="Authorization: Bearer $ADMIN_TOKEN"
-
-# ─────────────────────────────────────────────────────────────────────────────
-echo ""
-echo "=== Part 1: talk_to_user ability ==="
-
-echo ""
-echo "--- 1a: /notify works with default talk_to_user_enabled=true ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$BASE/workspaces/$SENDER_ID/notify" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Hello from sender"}')
-assert "POST /notify returns 200 when talk_to_user_enabled=true (default)" "$CODE" "200"
-
-echo ""
-echo "--- 1b: Disable talk_to_user ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X PATCH "$BASE/workspaces/$SENDER_ID/abilities" \
-  -H "Content-Type: application/json" -H "$ADMIN_AUTH" \
-  -d '{"talk_to_user_enabled": false}')
-assert "PATCH /abilities talk_to_user_enabled=false returns 200" "$CODE" "200"
-
-# Verify the flag is reflected in the workspace GET response.
-WS=$(curl -s "$BASE/workspaces/$SENDER_ID" -H "$SENDER_AUTH")
-FLAG=$(echo "$WS" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("talk_to_user_enabled","MISSING"))')
-assert "GET /workspaces/:id reflects talk_to_user_enabled=false" "$FLAG" "False"
-
-echo ""
-echo "--- 1c: /notify blocked when talk_to_user disabled ---"
-BODY=$(curl -s -w "" -X POST "$BASE/workspaces/$SENDER_ID/notify" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Should be blocked"}')
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$BASE/workspaces/$SENDER_ID/notify" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Should be blocked"}')
-assert "POST /notify returns 403 when talk_to_user_enabled=false" "$CODE" "403"
-
-ERR=$(echo "$BODY" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("error",""))' 2>/dev/null || echo "")
-assert_contains "403 body contains talk_to_user_disabled error code" "$ERR" "talk_to_user_disabled"
-
-HINT=$(echo "$BODY" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("hint",""))' 2>/dev/null || echo "")
-assert_contains "403 body contains delegate_task hint" "$HINT" "delegate_task"
-
-echo ""
-echo "--- 1d: Re-enable talk_to_user and verify /notify works again ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X PATCH "$BASE/workspaces/$SENDER_ID/abilities" \
-  -H "Content-Type: application/json" -H "$ADMIN_AUTH" \
-  -d '{"talk_to_user_enabled": true}')
-assert "PATCH /abilities talk_to_user_enabled=true returns 200" "$CODE" "200"
-
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$BASE/workspaces/$SENDER_ID/notify" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Re-enabled, should work"}')
-assert "POST /notify returns 200 after re-enabling talk_to_user" "$CODE" "200"
-
-# ─────────────────────────────────────────────────────────────────────────────
-echo ""
-echo "=== Part 2: broadcast ability ==="
-
-echo ""
-echo "--- 2a: Broadcast blocked by default (broadcast_enabled=false) ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$BASE/workspaces/$SENDER_ID/broadcast" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Should be blocked"}')
-assert "POST /broadcast returns 403 when broadcast_enabled=false (default)" "$CODE" "403"
-
-echo ""
-echo "--- 2b: Enable broadcast ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X PATCH "$BASE/workspaces/$SENDER_ID/abilities" \
-  -H "Content-Type: application/json" -H "$ADMIN_AUTH" \
-  -d '{"broadcast_enabled": true}')
-assert "PATCH /abilities broadcast_enabled=true returns 200" "$CODE" "200"
-
-WS=$(curl -s "$BASE/workspaces/$SENDER_ID" -H "$SENDER_AUTH")
-FLAG=$(echo "$WS" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("broadcast_enabled","MISSING"))')
-assert "GET /workspaces/:id reflects broadcast_enabled=true" "$FLAG" "True"
-
-echo ""
-echo "--- 2c: Successful broadcast fan-out ---"
-BCAST=$(curl -s -X POST "$BASE/workspaces/$SENDER_ID/broadcast" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":"Org-wide notice: scheduled maintenance in 5 minutes."}')
-BSTATUS=$(echo "$BCAST" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("status",""))' 2>/dev/null || echo "")
-BDELIVERED=$(echo "$BCAST" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("delivered","-1"))' 2>/dev/null || echo "-1")
-assert "POST /broadcast returns status=sent" "$BSTATUS" "sent"
-
-# delivered count must be >= 1 (the receiver workspace).
-echo "  INFO — broadcast delivered=$BDELIVERED"
-if python3 -c "import sys; sys.exit(0 if int('$BDELIVERED') >= 1 else 1)" 2>/dev/null; then
-  echo "  PASS — delivered count >= 1"
-  PASS=$((PASS+1))
-else
-  echo "  FAIL — expected delivered >= 1, got $BDELIVERED"
-  FAIL=$((FAIL+1))
-fi
-
-echo ""
-echo "--- 2d: Receiver activity log has broadcast_receive entry ---"
-RECEIVER_TOKEN=$(e2e_mint_test_token "$RECEIVER_ID")
-[ -n "$RECEIVER_TOKEN" ] || { echo "Failed to mint receiver token"; exit 1; }
-RECEIVER_AUTH="Authorization: Bearer $RECEIVER_TOKEN"
-
-ACT=$(curl -s -H "$RECEIVER_AUTH" "$BASE/workspaces/$RECEIVER_ID/activity?source=agent&limit=20")
-ROW=$(echo "$ACT" | python3 -c '
-import json, sys
-rows = json.load(sys.stdin) or []
-for r in rows:
-    if r.get("activity_type") == "broadcast_receive":
-        print(json.dumps(r))
-        break
-')
-[ -n "$ROW" ] || {
-  echo "  FAIL — could not find broadcast_receive row in receiver activity"
-  FAIL=$((FAIL+1))
-}
-
-if [ -n "$ROW" ]; then
-  # Message is stored in summary field.
-  MSG=$(echo "$ROW" | python3 -c 'import json,sys;r=json.load(sys.stdin);print(r.get("summary",""))')
-  assert_contains "broadcast_receive row summary has original message" "$MSG" "scheduled maintenance"
-  # Sender ID is stored in source_id field.
-  SRC=$(echo "$ROW" | python3 -c 'import json,sys;r=json.load(sys.stdin);print(r.get("source_id",""))')
-  assert "broadcast_receive row source_id is sender workspace" "$SRC" "$SENDER_ID"
-fi
-
-echo ""
-echo "--- 2e: Sender activity log has broadcast_sent entry ---"
-ACT_SENDER=$(curl -s -H "$SENDER_AUTH" "$BASE/workspaces/$SENDER_ID/activity?limit=20")
-SENT_ROW=$(echo "$ACT_SENDER" | python3 -c '
-import json, sys
-rows = json.load(sys.stdin) or []
-for r in rows:
-    if r.get("activity_type") == "broadcast_sent":
-        print(json.dumps(r))
-        break
-')
-[ -n "$SENT_ROW" ] || {
-  echo "  FAIL — could not find broadcast_sent row in sender activity"
-  FAIL=$((FAIL+1))
-}
-
-if [ -n "$SENT_ROW" ]; then
-  # Delivered count is baked into the summary field (no response_body for sender row).
-  SUMMARY=$(echo "$SENT_ROW" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("summary",""))')
-  assert_contains "broadcast_sent summary mentions workspace count" "$SUMMARY" "workspace"
-fi
-
-echo ""
-echo "--- 2f: Sender does NOT receive a broadcast_receive entry ---"
-SELF_RECV=$(echo "$ACT_SENDER" | python3 -c '
-import json, sys
-rows = json.load(sys.stdin) or []
-for r in rows:
-    if r.get("activity_type") == "broadcast_receive":
-        print("found")
-        break
-')
-assert_not_contains "sender has no broadcast_receive in own activity log" "${SELF_RECV:-}" "found"
-
-# ─────────────────────────────────────────────────────────────────────────────
-echo ""
-echo "--- 2g: Empty message is rejected ---"
-CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$BASE/workspaces/$SENDER_ID/broadcast" \
-  -H "Content-Type: application/json" -H "$SENDER_AUTH" \
-  -d '{"message":""}')
-assert "POST /broadcast with empty message returns 400" "$CODE" "400"
-
-echo ""
-echo "--- 2h: Partial PATCH does not clobber other flags ---"
-# Set talk_to_user=false, then patch only broadcast — talk_to_user must stay false.
-curl -s -o /dev/null -X PATCH "$BASE/workspaces/$SENDER_ID/abilities" \
-  -H "Content-Type: application/json" -H "$ADMIN_AUTH" \
-  -d '{"talk_to_user_enabled": false}'
-curl -s -o /dev/null -X PATCH "$BASE/workspaces/$SENDER_ID/abilities" \
-  -H "Content-Type: application/json" -H "$ADMIN_AUTH" \
-  -d '{"broadcast_enabled": false}'
-WS=$(curl -s "$BASE/workspaces/$SENDER_ID" -H "$SENDER_AUTH")
-TUF=$(echo "$WS" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("talk_to_user_enabled","MISSING"))')
-BEF=$(echo "$WS" | python3 -c 'import json,sys;print(json.load(sys.stdin).get("broadcast_enabled","MISSING"))')
-assert "partial PATCH preserves talk_to_user_enabled=false" "$TUF" "False"
-assert "partial PATCH sets broadcast_enabled=false" "$BEF" "False"
-
-# ─────────────────────────────────────────────────────────────────────────────
-echo ""
-echo "=== Results: $PASS passed, $FAIL failed ==="
-[ "$FAIL" -eq 0 ]

workspace-server/internal/handlers/a2a_proxy.go

@@ -97,28 +97,28 @@ const maxProxyResponseBody = 10 << 20
 //
 // Timeout model — three independent budgets, none of which gets in each other's way:
 //
-//   1. Client.Timeout — DELIBERATELY UNSET. Client.Timeout is a hard wall on
-//      the entire request including streamed body reads, and would pre-empt
-//      legitimate slow cold-start flows (Claude Code first-token over OAuth
-//      can take 30-60s on boot; long-running agent synthesis can stream
-//      tokens for minutes). Total-request budget is enforced per-request
-//      via context deadline (canvas = idle-only, agent-to-agent = 30 min ceiling).
+//  1. Client.Timeout — DELIBERATELY UNSET. Client.Timeout is a hard wall on
+//     the entire request including streamed body reads, and would pre-empt
+//     legitimate slow cold-start flows (Claude Code first-token over OAuth
+//     can take 30-60s on boot; long-running agent synthesis can stream
+//     tokens for minutes). Total-request budget is enforced per-request
+//     via context deadline (canvas = idle-only, agent-to-agent = 30 min ceiling).
 //
-//   2. Transport.DialContext — 10s connect timeout. When a workspace's EC2
-//      black-holes TCP connects (instance terminated mid-flight, security group
-//      flipped, NACL bug), the OS default is 75s on Linux / 21s on macOS — long
-//      enough that Cloudflare's ~100s edge timeout can fire first and surface
-//      a generic 502 page to canvas. 10s is well above realistic intra-region
-//      latencies and well below CF's edge timeout.
+//  2. Transport.DialContext — 10s connect timeout. When a workspace's EC2
+//     black-holes TCP connects (instance terminated mid-flight, security group
+//     flipped, NACL bug), the OS default is 75s on Linux / 21s on macOS — long
+//     enough that Cloudflare's ~100s edge timeout can fire first and surface
+//     a generic 502 page to canvas. 10s is well above realistic intra-region
+//     latencies and well below CF's edge timeout.
 //
-//   3. Transport.ResponseHeaderTimeout — 180s default. From request-body-end
-//      to response-headers-start. Configurable via
-//      A2A_PROXY_RESPONSE_HEADER_TIMEOUT (envx.Duration). Covers cold-start
-//      first-byte (30-60s OAuth flow above) with enough room for Opus agent
-//      turns (big context + internal delegate_task round-trips routinely exceed
-//      the old 60s ceiling). Body streaming after headers is governed by the
-//      per-request context deadline, NOT this timeout — so multi-minute agent
-//      responses still work fine.
+//  3. Transport.ResponseHeaderTimeout — 180s default. From request-body-end
+//     to response-headers-start. Configurable via
+//     A2A_PROXY_RESPONSE_HEADER_TIMEOUT (envx.Duration). Covers cold-start
+//     first-byte (30-60s OAuth flow above) with enough room for Opus agent
+//     turns (big context + internal delegate_task round-trips routinely exceed
+//     the old 60s ceiling). Body streaming after headers is governed by the
+//     per-request context deadline, NOT this timeout — so multi-minute agent
+//     responses still work fine.
 //
 // The point of (2) and (3) is to surface a *structured* 503 from
 // handleA2ADispatchError when the workspace agent is unreachable, so canvas

workspace-server/internal/handlers/a2a_proxy_helpers.go

@@ -194,11 +194,6 @@ func (h *WorkspaceHandler) maybeMarkContainerDead(ctx context.Context, workspace
 	}
 	db.ClearWorkspaceKeys(ctx, workspaceID)
 	h.broadcaster.RecordAndBroadcast(ctx, string(events.EventWorkspaceOffline), workspaceID, map[string]interface{}{})
-	// Tracked via goAsync (not bare `go`) so the asyncWG can be drained
-	// before a test swaps the global db.DB. runRestartCycle reads db.DB
-	// before its provisioner gate, so an untracked detached goroutine
-	// races setupTestDB's t.Cleanup db.DB restore. Matches the already-
-	// correct site at a2a_proxy.go:648.
 	h.goAsync(func() { h.RestartByID(workspaceID) })
 	return true
 }
@@ -246,9 +241,6 @@ func (h *WorkspaceHandler) preflightContainerHealth(ctx context.Context, workspa
 	}
 	db.ClearWorkspaceKeys(ctx, workspaceID)
 	h.broadcaster.RecordAndBroadcast(ctx, string(events.EventWorkspaceOffline), workspaceID, map[string]interface{}{})
-	// Tracked via goAsync (see maybeMarkContainerDead): preflight's
-	// detached restart must be drainable so it doesn't race the global
-	// db.DB swap in test cleanup.
 	h.goAsync(func() { h.RestartByID(workspaceID) })
 	return &proxyA2AError{
 		Status: http.StatusServiceUnavailable,
@@ -270,9 +262,8 @@ func (h *WorkspaceHandler) logA2AFailure(ctx context.Context, workspaceID, calle
 		errWsName = workspaceID
 	}
 	summary := "A2A request to " + errWsName + " failed: " + errMsg
-	parent := ctx
 	h.goAsync(func() {
-		logCtx, cancel := context.WithTimeout(context.WithoutCancel(parent), 30*time.Second)
+		logCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 30*time.Second)
 		defer cancel()
 		LogActivity(logCtx, h.broadcaster, ActivityParams{
 			WorkspaceID:  workspaceID,
@@ -318,9 +309,8 @@ func (h *WorkspaceHandler) logA2ASuccess(ctx context.Context, workspaceID, calle
 	}
 	summary := a2aMethod + " → " + wsNameForLog
 	toolTrace := extractToolTrace(respBody)
-	parent := ctx
 	h.goAsync(func() {
-		logCtx, cancel := context.WithTimeout(context.WithoutCancel(parent), 30*time.Second)
+		logCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 30*time.Second)
 		defer cancel()
 		LogActivity(logCtx, h.broadcaster, ActivityParams{
 			WorkspaceID:  workspaceID,
@@ -520,9 +510,8 @@ func (h *WorkspaceHandler) logA2AReceiveQueued(ctx context.Context, workspaceID,
 		wsName = workspaceID
 	}
 	summary := a2aMethod + " → " + wsName + " (queued for poll)"
-	parent := ctx
 	h.goAsync(func() {
-		logCtx, cancel := context.WithTimeout(context.WithoutCancel(parent), 30*time.Second)
+		logCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 30*time.Second)
 		defer cancel()
 		LogActivity(logCtx, h.broadcaster, ActivityParams{
 			WorkspaceID:  workspaceID,

workspace-server/internal/handlers/a2a_proxy_preflight_test.go

@@ -54,6 +54,7 @@ func TestPreflight_ContainerRunning_ReturnsNil(t *testing.T) {
 	_ = setupTestDB(t)
 	stub := &preflightLocalProv{running: true, err: nil}
 	h := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, h)
 	h.provisioner = stub
 
 	if err := h.preflightContainerHealth(context.Background(), "ws-running-123"); err != nil {
@@ -186,8 +187,8 @@ func TestProxyA2A_Preflight_RoutesThroughProvisionerSSOT(t *testing.T) {
 	}
 
 	var (
-		callsIsRunning             bool
-		callsContainerInspectRaw   bool
+		callsIsRunning                  bool
+		callsContainerInspectRaw        bool
 		callsRunningContainerNameDirect bool
 	)
 	ast.Inspect(fn.Body, func(n ast.Node) bool {

workspace-server/internal/handlers/a2a_proxy_test.go

@@ -262,6 +262,7 @@ func TestProxyA2A_Upstream502_TriggersContainerDeadCheck(t *testing.T) {
 	allowLoopbackForTest(t)
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 	cp := &fakeCPProv{running: false}
 	handler.SetCPProvisioner(cp)
 
@@ -324,6 +325,7 @@ func TestProxyA2A_Upstream502_AliveAgent_PropagatesAsIs(t *testing.T) {
 	allowLoopbackForTest(t)
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 	cp := &fakeCPProv{running: true}
 	handler.SetCPProvisioner(cp)
 
@@ -513,6 +515,7 @@ func TestProxyA2A_AllowedSelf_SkipsAccessCheck(t *testing.T) {
 	allowLoopbackForTest(t)
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 
 	agentServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
@@ -661,18 +664,18 @@ func TestProxyA2A_CallerIDDerivedFromBearer(t *testing.T) {
 	//    (column order: workspace_id, activity_type, source_id, target_id, ...)
 	mock.ExpectExec("INSERT INTO activity_logs").
 		WithArgs(
-			"ws-target",                       // $1 workspace_id
-			"a2a_receive",                     // $2 activity_type
-			sqlmock.AnyArg(),                  // $3 source_id — *string("ws-caller"), checked below
-			sqlmock.AnyArg(),                  // $4 target_id
-			sqlmock.AnyArg(),                  // $5 method
-			sqlmock.AnyArg(),                  // $6 summary
-			sqlmock.AnyArg(),                  // $7 request_body
-			sqlmock.AnyArg(),                  // $8 response_body
-			sqlmock.AnyArg(),                  // $9 tool_trace
-			sqlmock.AnyArg(),                  // $10 duration_ms
-			sqlmock.AnyArg(),                  // $11 status
-			sqlmock.AnyArg(),                  // $12 error_detail
+			"ws-target",      // $1 workspace_id
+			"a2a_receive",    // $2 activity_type
+			sqlmock.AnyArg(), // $3 source_id — *string("ws-caller"), checked below
+			sqlmock.AnyArg(), // $4 target_id
+			sqlmock.AnyArg(), // $5 method
+			sqlmock.AnyArg(), // $6 summary
+			sqlmock.AnyArg(), // $7 request_body
+			sqlmock.AnyArg(), // $8 response_body
+			sqlmock.AnyArg(), // $9 tool_trace
+			sqlmock.AnyArg(), // $10 duration_ms
+			sqlmock.AnyArg(), // $11 status
+			sqlmock.AnyArg(), // $12 error_detail
 		).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
@@ -1716,7 +1719,6 @@ func TestDispatchA2A_RejectsUnsafeURL(t *testing.T) {
 	}
 }
 
-
 // --- handleA2ADispatchError ---
 
 func TestHandleA2ADispatchError_ContextDeadline(t *testing.T) {
@@ -1803,6 +1805,7 @@ func TestMaybeMarkContainerDead_CPOnly_NotRunning(t *testing.T) {
 	mock := setupTestDB(t)
 	setupTestRedis(t)
 	handler := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 	cp := &fakeCPProv{running: false}
 	handler.SetCPProvisioner(cp)
 
@@ -1955,6 +1958,7 @@ func TestLogA2AFailure_Smoke(t *testing.T) {
 	mock := setupTestDB(t)
 	setupTestRedis(t)
 	handler := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 
 	// Sync workspace-name lookup (called in the caller goroutine).
 	mock.ExpectQuery(`SELECT name FROM workspaces WHERE id =`).
@@ -1973,6 +1977,7 @@ func TestLogA2AFailure_EmptyNameFallback(t *testing.T) {
 	mock := setupTestDB(t)
 	setupTestRedis(t)
 	handler := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 
 	// Empty name from DB → summary uses the workspaceID as the name.
 	mock.ExpectQuery(`SELECT name FROM workspaces WHERE id =`).
@@ -1989,6 +1994,7 @@ func TestLogA2ASuccess_Smoke(t *testing.T) {
 	mock := setupTestDB(t)
 	setupTestRedis(t)
 	handler := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 
 	mock.ExpectQuery(`SELECT name FROM workspaces WHERE id =`).
 		WithArgs("ws-ok").
@@ -2005,6 +2011,7 @@ func TestLogA2ASuccess_ErrorStatus(t *testing.T) {
 	mock := setupTestDB(t)
 	setupTestRedis(t)
 	handler := NewWorkspaceHandler(newTestBroadcaster(), nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, handler)
 
 	mock.ExpectQuery(`SELECT name FROM workspaces WHERE id =`).
 		WithArgs("ws-err").

workspace-server/internal/handlers/a2a_queue_test.go

@@ -26,6 +26,10 @@ import (
 // setupTestDBForQueueTests creates a sqlmock DB using QueryMatcherEqual (exact
 // string matching) so that ExpectQuery/ExpectExec patterns are compared verbatim.
 // Uses the same global db.DB as setupTestDB so the handler can use it.
+//
+// IMPORTANT: db.DB is saved before assignment and restored via t.Cleanup so
+// that tests running after this one are not polluted by a closed mock.
+// Same fix as setupTestDB (handlers_test.go); same root cause as mc#975.
 func setupTestDBForQueueTests(t *testing.T) sqlmock.Sqlmock {
 	t.Helper()
 	mockDB, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual))

workspace-server/internal/handlers/activity.go

@@ -482,13 +482,6 @@ func (h *ActivityHandler) Notify(c *gin.Context) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "workspace not found"})
 			return
 		}
-		if errors.Is(err, ErrTalkToUserDisabled) {
-			c.JSON(http.StatusForbidden, gin.H{
-				"error": "talk_to_user_disabled",
-				"hint":  "This workspace is not allowed to send messages directly to the user. Forward your update to a parent workspace using delegate_task — they may be able to reach the user.",
-			})
-			return
-		}
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "internal error"})
 		return
 	}

workspace-server/internal/handlers/activity_test.go

@@ -464,9 +464,9 @@ func TestNotify_PersistsToActivityLogsForReloadRecovery(t *testing.T) {
 	t.Cleanup(func() { db.DB = prevDB; mockDB.Close() })
 
 	// Workspace existence check
-	mock.ExpectQuery(`SELECT name, talk_to_user_enabled FROM workspaces`).
+	mock.ExpectQuery(`SELECT name FROM workspaces`).
 		WithArgs("ws-notify").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("DD", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("DD"))
 
 	// Persistence INSERT — verify shape
 	mock.ExpectExec(`INSERT INTO activity_logs`).
@@ -511,9 +511,9 @@ func TestNotify_WithAttachments_PersistsFilePartsForReload(t *testing.T) {
 	db.DB = mockDB
 	t.Cleanup(func() { db.DB = prevDB; mockDB.Close() })
 
-	mock.ExpectQuery(`SELECT name, talk_to_user_enabled FROM workspaces`).
+	mock.ExpectQuery(`SELECT name FROM workspaces`).
 		WithArgs("ws-attach").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("DD", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("DD"))
 
 	// Capture the JSONB arg so we can assert on the persisted shape
 	// AFTER the call (must include parts[].kind=file so reload
@@ -640,9 +640,9 @@ func TestNotify_DBFailure_StillBroadcastsAnd200(t *testing.T) {
 	db.DB = mockDB
 	t.Cleanup(func() { db.DB = prevDB; mockDB.Close() })
 
-	mock.ExpectQuery(`SELECT name, talk_to_user_enabled FROM workspaces`).
+	mock.ExpectQuery(`SELECT name FROM workspaces`).
 		WithArgs("ws-x").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("DD", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("DD"))
 	mock.ExpectExec(`INSERT INTO activity_logs`).
 		WillReturnError(fmt.Errorf("simulated db hiccup"))
 

workspace-server/internal/handlers/agent_message_writer.go

@@ -54,11 +54,6 @@ import (
 // timeout) surface as wrapped errors and should be treated as 503.
 var ErrWorkspaceNotFound = errors.New("agent_message: workspace not found")
 
-// ErrTalkToUserDisabled is returned when the workspace has
-// talk_to_user_enabled=false. Callers surface HTTP 403 so the Python tool
-// can detect it and suggest forwarding to a parent workspace.
-var ErrTalkToUserDisabled = errors.New("agent_message: talk_to_user disabled")
-
 // AgentMessageAttachment is one file attached to an agent → user
 // message. Identical to handlers.NotifyAttachment in field set; kept
 // distinct so the writer's API doesn't import a handler type with HTTP
@@ -112,20 +107,16 @@ func (w *AgentMessageWriter) Send(
 	// notify call surfaced as "workspace not found" and masked real
 	// incidents in the alert path.
 	var wsName string
-	var talkToUserEnabled bool
 	err := w.db.QueryRowContext(ctx,
-		`SELECT name, talk_to_user_enabled FROM workspaces WHERE id = $1 AND status != 'removed'`,
+		`SELECT name FROM workspaces WHERE id = $1 AND status != 'removed'`,
 		workspaceID,
-	).Scan(&wsName, &talkToUserEnabled)
+	).Scan(&wsName)
 	if errors.Is(err, sql.ErrNoRows) {
 		return ErrWorkspaceNotFound
 	}
 	if err != nil {
 		return fmt.Errorf("agent_message: workspace lookup: %w", err)
 	}
-	if !talkToUserEnabled {
-		return ErrTalkToUserDisabled
-	}
 
 	// 2. Build broadcast payload + WS-emit. Same shape that ChatTab's
 	//    AGENT_MESSAGE handler in canvas/src/store/canvas-events.ts has

workspace-server/internal/handlers/agent_message_writer_test.go

@@ -88,9 +88,9 @@ func TestAgentMessageWriter_Send_Success_NoAttachments(t *testing.T) {
 	mock := setupTestDB(t)
 	w := NewAgentMessageWriter(db.DB, newTestBroadcaster())
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-1").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	mock.ExpectExec(`INSERT INTO activity_logs.*'a2a_receive'.*'notify'`).
 		WithArgs(
@@ -116,9 +116,9 @@ func TestAgentMessageWriter_Send_Success_WithAttachments(t *testing.T) {
 	mock := setupTestDB(t)
 	w := NewAgentMessageWriter(db.DB, newTestBroadcaster())
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-att").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("Ryan", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("Ryan"))
 
 	mock.ExpectExec(`INSERT INTO activity_logs.*'a2a_receive'.*'notify'`).
 		WithArgs(
@@ -173,9 +173,9 @@ func TestAgentMessageWriter_Send_WorkspaceNotFound(t *testing.T) {
 	emitter := &capturingEmitter{}
 	w := NewAgentMessageWriter(db.DB, emitter)
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-missing").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}))
 
 	err := w.Send(context.Background(), "ws-missing", "lost in the void", nil)
 	if !errors.Is(err, ErrWorkspaceNotFound) {
@@ -202,9 +202,9 @@ func TestAgentMessageWriter_Send_DBInsertFailureStillReturnsNil(t *testing.T) {
 	mock := setupTestDB(t)
 	w := NewAgentMessageWriter(db.DB, newTestBroadcaster())
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-dbfail").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	mock.ExpectExec(`INSERT INTO activity_logs`).
 		WillReturnError(errors.New("transient db error"))
@@ -223,9 +223,9 @@ func TestAgentMessageWriter_Send_PreviewTruncation(t *testing.T) {
 	mock := setupTestDB(t)
 	w := NewAgentMessageWriter(db.DB, newTestBroadcaster())
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-trunc").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("Ryan", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("Ryan"))
 
 	longMsg := strings.Repeat("x", 200)
 	mock.ExpectExec(`INSERT INTO activity_logs`).
@@ -263,9 +263,9 @@ func TestAgentMessageWriter_Send_BroadcastsAgentMessageEvent(t *testing.T) {
 	emitter := &capturingEmitter{}
 	w := NewAgentMessageWriter(db.DB, emitter)
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-bc").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("Workspace Name", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("Workspace Name"))
 	mock.ExpectExec(`INSERT INTO activity_logs`).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 
@@ -315,7 +315,7 @@ func TestAgentMessageWriter_Send_DBErrorOnLookupReturnsWrapped(t *testing.T) {
 	w := NewAgentMessageWriter(db.DB, newTestBroadcaster())
 
 	transientErr := errors.New("connection refused")
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-dbdown").
 		WillReturnError(transientErr)
 
@@ -350,9 +350,9 @@ func TestAgentMessageWriter_Send_NonASCIIMessagePersists(t *testing.T) {
 	// the byte-slice bug.
 	msg := strings.Repeat("你", 200)
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-cjk").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	mock.ExpectExec(`INSERT INTO activity_logs`).
 		WithArgs(
@@ -395,9 +395,9 @@ func TestAgentMessageWriter_Send_OmitsAttachmentsKeyWhenEmpty(t *testing.T) {
 	emitter := &capturingEmitter{}
 	w := NewAgentMessageWriter(db.DB, emitter)
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-noatt").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("X", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("X"))
 	mock.ExpectExec(`INSERT INTO activity_logs`).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 

workspace-server/internal/handlers/approvals.go

@@ -116,9 +116,6 @@ func (h *ApprovalsHandler) ListAll(c *gin.Context) {
 			"created_at":     createdAt,
 		})
 	}
-	if err := rows.Err(); err != nil {
-		log.Printf("ListPendingApprovals rows.Err: %v", err)
-	}
 
 	c.JSON(http.StatusOK, approvals)
 }
@@ -158,9 +155,6 @@ func (h *ApprovalsHandler) List(c *gin.Context) {
 			"created_at": createdAt,
 		})
 	}
-	if err := rows.Err(); err != nil {
-		log.Printf("ListApprovals rows.Err workspace=%s: %v", workspaceID, err)
-	}
 
 	c.JSON(http.StatusOK, approvals)
 }

workspace-server/internal/handlers/delegation.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"context"
+	"database/sql"
 	"encoding/json"
 	"log"
 	"net/http"
@@ -698,7 +699,8 @@ func (h *DelegationHandler) listDelegationsFromLedger(ctx context.Context, works
 
 	var result []map[string]interface{}
 	for rows.Next() {
-		var delegationID, callerID, calleeID, taskPreview, status, resultPreview, errorDetail string
+		var delegationID, callerID, calleeID, taskPreview, status string
+		var resultPreview, errorDetail sql.NullString
 		var lastHeartbeat, deadline, createdAt, updatedAt *time.Time
 		if err := rows.Scan(
 			&delegationID, &callerID, &calleeID, &taskPreview,
@@ -717,11 +719,11 @@ func (h *DelegationHandler) listDelegationsFromLedger(ctx context.Context, works
 			"updated_at":    updatedAt,
 			"_ledger":       true, // marker so callers know this row is from the ledger
 		}
-		if resultPreview != "" {
-			entry["response_preview"] = textutil.TruncateBytes(resultPreview, 300)
+		if resultPreview.Valid && resultPreview.String != "" {
+			entry["response_preview"] = textutil.TruncateBytes(resultPreview.String, 300)
 		}
-		if errorDetail != "" {
-			entry["error"] = errorDetail
+		if errorDetail.Valid && errorDetail.String != "" {
+			entry["error"] = errorDetail.String
 		}
 		if lastHeartbeat != nil {
 			entry["last_heartbeat"] = lastHeartbeat

workspace-server/internal/handlers/delegation_list_test.go

@@ -145,6 +145,54 @@ func TestListDelegationsFromLedger_MultipleRows(t *testing.T) {
 	}
 }
 
+func TestListDelegationsFromLedger_NullsOmitted(t *testing.T) {
+	// last_heartbeat, deadline, result_preview, error_detail are all NULL.
+	// Handler must not panic and must omit those keys from the map.
+	mockDB, mock, err := sqlmock.New()
+	if err != nil {
+		t.Fatalf("failed to create sqlmock: %v", err)
+	}
+	prevDB := db.DB
+	db.DB = mockDB
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
+
+	now := time.Now()
+	rows := sqlmock.NewRows([]string{
+		"delegation_id", "caller_id", "callee_id", "task_preview",
+		"status", "result_preview", "error_detail",
+		"last_heartbeat", "deadline", "created_at", "updated_at",
+	}).
+		AddRow("del-1", "ws-1", "ws-2", "task", "queued", nil, nil, nil, nil, now, now)
+	mock.ExpectQuery("SELECT .+ FROM delegations").
+		WithArgs("ws-1").
+		WillReturnRows(rows)
+
+	broadcaster := newTestBroadcaster()
+	wh := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
+	dh := NewDelegationHandler(wh, broadcaster)
+
+	got := dh.listDelegationsFromLedger(context.Background(), "ws-1")
+	if len(got) != 1 {
+		t.Fatalf("expected 1 entry, got %d", len(got))
+	}
+	e := got[0]
+	if _, ok := e["last_heartbeat"]; ok {
+		t.Error("last_heartbeat should be absent when NULL")
+	}
+	if _, ok := e["deadline"]; ok {
+		t.Error("deadline should be absent when NULL")
+	}
+	if _, ok := e["response_preview"]; ok {
+		t.Error("response_preview should be absent when NULL result_preview")
+	}
+	if _, ok := e["error"]; ok {
+		t.Error("error should be absent when NULL error_detail")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Errorf("sqlmock expectations: %v", err)
+	}
+}
+
 func TestListDelegationsFromLedger_QueryError(t *testing.T) {
 	// Query failure returns nil — graceful fallback, no panic.
 	mockDB, mock, err := sqlmock.New()
@@ -438,10 +486,3 @@ func TestListDelegationsFromActivityLogs_RowsErr(t *testing.T) {
 		t.Errorf("sqlmock expectations: %v", err)
 	}
 }
-
-// TestListDelegationsFromActivityLogs_ScanErrorSkipped is removed.
-//
-// Same reason as TestListDelegationsFromLedger_ScanError: Go 1.25 causes
-// sqlmock.NewRows([]string{}).AddRow(...) to panic in test SETUP. The handler
-// has no recover(), so a scan panic would crash the process — the correct
-// behaviour. Real-DB integration tests cover this path.

workspace-server/internal/handlers/handlers_additional_test.go

@@ -230,21 +230,20 @@ func TestWorkspaceList_WithData(t *testing.T) {
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
 
-	// 23 cols — broadcast_enabled + talk_to_user_enabled added after monthly_spend
-	// (migration 20260514). Column order must match scanWorkspaceRow exactly.
+	// 21 cols — see scanWorkspaceRow for order (max_concurrent_tasks
+	// lands between active_tasks and last_error_rate).
 	columns := []string{
 		"id", "name", "role", "tier", "status", "agent_card", "url",
 		"parent_id", "active_tasks", "max_concurrent_tasks",
 		"last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	rows := sqlmock.NewRows(columns).
 		AddRow("ws-1", "Agent One", "worker", 1, "online", []byte(`{"name":"agent1"}`), "http://localhost:8001",
-			nil, 3, 1, 0.02, "", 7200, "processing", "langgraph", "", 10.0, 20.0, false, nil, int64(0), false, true).
+			nil, 3, 1, 0.02, "", 7200, "processing", "langgraph", "", 10.0, 20.0, false, nil, int64(0)).
 		AddRow("ws-2", "Agent Two", "", 2, "degraded", []byte("null"), "",
-			nil, 0, 1, 0.6, "timeout", 100, "", "claude-code", "", 50.0, 60.0, true, nil, int64(0), false, true)
+			nil, 0, 1, 0.6, "timeout", 100, "", "claude-code", "", 50.0, 60.0, true, nil, int64(0))
 
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WillReturnRows(rows)

workspace-server/internal/handlers/handlers_test.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"net/http"
 	"net/http/httptest"
-	"sync"
 	"testing"
 	"time"
 
@@ -23,44 +22,18 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
-// liveTestHandlers tracks every WorkspaceHandler built during the test
-// binary's lifetime so setupTestDB can drain their in-flight goAsync
-// goroutines (notably the detached RestartByID restart cycle, which
-// reads the global db.DB) BEFORE restoring db.DB. Without this drain a
-// fire-and-forget restart goroutine spawned by one test outlives that
-// test and races the db.DB swap in a later test's t.Cleanup — the
-// 0x...d548 data race on platform/internal/db.DB.
-var (
-	liveTestHandlersMu sync.Mutex
-	liveTestHandlers   []*WorkspaceHandler
-)
-
 func init() {
 	gin.SetMode(gin.TestMode)
-	newHandlerHook = func(h *WorkspaceHandler) {
-		liveTestHandlersMu.Lock()
-		liveTestHandlers = append(liveTestHandlers, h)
-		liveTestHandlersMu.Unlock()
-	}
-}
-
-// drainTestAsync waits for every tracked handler's goAsync goroutines to
-// finish. Called from setupTestDB's cleanup before db.DB is restored so
-// no detached restart/provision goroutine is mid-read of db.DB when the
-// pointer is swapped.
-func drainTestAsync() {
-	liveTestHandlersMu.Lock()
-	handlers := make([]*WorkspaceHandler, len(liveTestHandlers))
-	copy(handlers, liveTestHandlers)
-	liveTestHandlersMu.Unlock()
-	for _, h := range handlers {
-		h.waitAsyncForTest()
-	}
 }
 
 // setupTestDB creates a sqlmock DB and assigns it to the global db.DB.
 // It also disables the SSRF URL check so that httptest.NewServer loopback
 // URLs and fake hostnames (*.example) used in tests don't trigger rejections.
+//
+// IMPORTANT: db.DB is saved before assignment and restored via t.Cleanup so
+// that tests running after this one are not polluted by a closed mock.
+// This is the single root cause of the systemic CI/Platform (Go) failures on
+// main HEAD 8026f020 (mc#975).
 func setupTestDB(t *testing.T) sqlmock.Sqlmock {
 	t.Helper()
 	mockDB, mock, err := sqlmock.New()
@@ -69,16 +42,7 @@ func setupTestDB(t *testing.T) sqlmock.Sqlmock {
 	}
 	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() {
-		// Drain detached async goroutines (e.g. goAsync(RestartByID),
-		// which reads db.DB in runRestartCycle before its provisioner
-		// gate) BEFORE swapping db.DB back. Doing the restore first
-		// would let an in-flight restart goroutine read db.DB while
-		// this line writes it — the data race this guards against.
-		drainTestAsync()
-		db.DB = prevDB
-		mockDB.Close()
-	})
+	t.Cleanup(func() { db.DB = prevDB; mockDB.Close() })
 
 	// Disable SSRF checks for the duration of this test only. Restore
 	// the previous state via t.Cleanup so that TestIsSafeURL_* tests
@@ -98,6 +62,11 @@ func setupTestDB(t *testing.T) sqlmock.Sqlmock {
 	return mock
 }
 
+func waitForHandlerAsyncBeforeDBCleanup(t *testing.T, h *WorkspaceHandler) {
+	t.Helper()
+	t.Cleanup(h.waitAsyncForTest)
+}
+
 // setupTestRedis creates a miniredis instance and assigns it to the global db.RDB.
 func setupTestRedis(t *testing.T) *miniredis.Miniredis {
 	t.Helper()
@@ -397,6 +366,11 @@ func TestWorkspaceCreate(t *testing.T) {
 }
 
 func TestBuildProvisionerConfig_IncludesAwarenessSettings(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectQuery(`SELECT digest FROM runtime_image_pins`).
+		WithArgs("claude-code").
+		WillReturnError(sql.ErrNoRows)
+
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", "/tmp/configs")
 
@@ -433,21 +407,21 @@ func TestWorkspaceList(t *testing.T) {
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", "/tmp/configs")
 
-	// 23 cols: broadcast_enabled + talk_to_user_enabled added after monthly_spend
-	// (migration 20260514). Column order must match scanWorkspaceRow exactly.
+	// 21 cols: `max_concurrent_tasks` added between active_tasks and
+	// last_error_rate (see scanWorkspaceRow + COALESCE(w.max_concurrent_tasks, 1)
+	// in workspace.go). Column order must match that scan exactly.
 	columns := []string{
 		"id", "name", "role", "tier", "status", "agent_card", "url",
 		"parent_id", "active_tasks", "max_concurrent_tasks",
 		"last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	rows := sqlmock.NewRows(columns).
 		AddRow("ws-1", "Agent One", "worker", 1, "online", []byte("null"), "http://localhost:8001",
-			nil, 0, 1, 0.0, "", 100, "", "claude-code", "", 10.0, 20.0, false, nil, int64(0), false, true).
+			nil, 0, 1, 0.0, "", 100, "", "claude-code", "", 10.0, 20.0, false, nil, int64(0)).
 		AddRow("ws-2", "Agent Two", "manager", 2, "provisioning", []byte("null"), "",
-			nil, 0, 1, 0.0, "", 0, "", "langgraph", "", 50.0, 60.0, false, nil, int64(0), false, true)
+			nil, 0, 1, 0.0, "", 0, "", "langgraph", "", 50.0, 60.0, false, nil, int64(0))
 
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WillReturnRows(rows)
@@ -1161,14 +1135,13 @@ func TestWorkspaceGet_CurrentTask(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs("dddddddd-0004-0000-0000-000000000000").
 		WillReturnRows(sqlmock.NewRows(columns).AddRow(
 			"dddddddd-0004-0000-0000-000000000000", "Task Worker", "worker", 1, "online", []byte("null"), "http://localhost:9000",
 			nil, 2, 1, 0.0, "", 300, "Analyzing document", "langgraph", "", 10.0, 20.0, false,
-			nil, int64(0), false, true,
+			nil, int64(0),
 		))
 
 	w := httptest.NewRecorder()

workspace-server/internal/handlers/instructions.go

@@ -248,9 +248,6 @@ func (h *InstructionsHandler) Resolve(c *gin.Context) {
 		b.WriteString(content)
 		b.WriteString("\n\n")
 	}
-	if err := rows.Err(); err != nil {
-		log.Printf("ResolveInstructions rows.Err workspace=%s: %v", workspaceID, err)
-	}
 
 	c.JSON(http.StatusOK, gin.H{
 		"workspace_id": workspaceID,
@@ -261,7 +258,6 @@ func (h *InstructionsHandler) Resolve(c *gin.Context) {
 func scanInstructions(rows interface {
 	Next() bool
 	Scan(dest ...interface{}) error
-	Err() error
 }) []Instruction {
 	var instructions []Instruction
 	for rows.Next() {
@@ -273,9 +269,6 @@ func scanInstructions(rows interface {
 		}
 		instructions = append(instructions, inst)
 	}
-	if err := rows.Err(); err != nil {
-		log.Printf("scanInstructions rows.Err: %v", err)
-	}
 	if instructions == nil {
 		instructions = []Instruction{}
 	}

workspace-server/internal/handlers/mcp_test.go

@@ -751,9 +751,9 @@ func TestMCPHandler_SendMessageToUser_DBErrorLogsAndStill200s(t *testing.T) {
 	t.Setenv("MOLECULE_MCP_ALLOW_SEND_MESSAGE", "true")
 	h, mock := newMCPHandler(t)
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-err").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	// INSERT fails — must NOT abort the tool response.
 	mock.ExpectExec(`INSERT INTO activity_logs.*'a2a_receive'.*'notify'`).
@@ -802,9 +802,9 @@ func TestMCPHandler_SendMessageToUser_ResponseBodyShape(t *testing.T) {
 
 	const userMessage = "Hi there from the agent"
 
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-shape").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	// Capture the response_body argument and assert its exact shape.
 	mock.ExpectExec(`INSERT INTO activity_logs.*'a2a_receive'.*'notify'`).
@@ -861,9 +861,9 @@ func TestMCPHandler_SendMessageToUser_PersistsToActivityLog(t *testing.T) {
 	// before it does anything else. Returning a name lets the
 	// broadcast payload populate; the test doesn't assert on the
 	// broadcast (no observable WS in this fake), only on the DB.
-	mock.ExpectQuery("SELECT name, talk_to_user_enabled FROM workspaces").
+	mock.ExpectQuery("SELECT name FROM workspaces").
 		WithArgs("ws-msg").
-		WillReturnRows(sqlmock.NewRows([]string{"name", "talk_to_user_enabled"}).AddRow("CEO Ryan PC", true))
+		WillReturnRows(sqlmock.NewRows([]string{"name"}).AddRow("CEO Ryan PC"))
 
 	// The persistence INSERT — pin the exact shape so a future
 	// refactor that switches columns or drops `method='notify'`

workspace-server/internal/handlers/org_helpers.go

@@ -80,103 +80,26 @@ func hasUnresolvedVarRef(original, expanded string) bool {
 }
 
 // expandWithEnv expands ${VAR} and $VAR references in s using the env map.
-// Falls back to the platform process env only when the whole value is a
-// single variable reference; embedded process-env expansion is too broad for
-// imported org YAML because host variables such as HOME are not template data.
+// Falls back to the platform process env if a var isn't in the map.
+// Shell variables must start with a letter or '_' per POSIX; invalid identifiers
+// are returned literally so that "$100" and "$5" stay as-is.
 func expandWithEnv(s string, env map[string]string) string {
-	if s == "" {
-		return ""
-	}
-	var b strings.Builder
-	for i := 0; i < len(s); {
-		if s[i] != '$' {
-			b.WriteByte(s[i])
-			i++
-			continue
+	return os.Expand(s, func(key string) string {
+		if len(key) == 0 {
+			return "$"
 		}
-
-		if i+1 >= len(s) {
-			b.WriteByte('$')
-			i++
-			continue
+		c := key[0]
+		if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_') {
+			return "$" + key // not a valid shell identifier — return literal
 		}
-
-		if s[i+1] == '{' {
-			end := strings.IndexByte(s[i+2:], '}')
-			if end < 0 {
-				b.WriteByte('$')
-				i++
-				continue
-			}
-			end += i + 2
-			key := s[i+2 : end]
-			ref := s[i : end+1]
-			b.WriteString(expandEnvRef(key, ref, s, env))
-			i = end + 1
-			continue
+		if v, ok := env[key]; ok {
+			return v
 		}
-
-		if !isEnvIdentStart(s[i+1]) {
-			b.WriteByte('$')
-			i++
-			continue
-		}
-		j := i + 2
-		for j < len(s) && isEnvIdentPart(s[j]) {
-			j++
-		}
-		key := s[i+1 : j]
-		ref := s[i:j]
-		b.WriteString(expandEnvRef(key, ref, s, env))
-		i = j
-	}
-	return b.String()
-}
-
-// expandEnvRef resolves a single variable reference extracted from s.
-//
-// Guards:
-//   - Empty key → "$$" escape, return "$"
-//   - key[0] not POSIX ident start → "$" + partial chars, return "$<chars>"
-//   - Key in env map → return the mapped value (template override wins)
-//   - Otherwise → only fall back to os.Getenv if the whole input string IS the
-//     variable reference (ref == whole).
-//
-// Bare $VAR format:
-//   $HOME (alone) → ref==whole → os.Getenv ✓  (host HOME is org-template HOME)
-//   $HOME/path (partial) → ref!=whole → literal "$HOME" ✓  (CWE-78: prevents host leak)
-//
-// Braced ${VAR} format:
-//   ${HOME} (alone) → ref==whole → os.Getenv ✓
-//   ${ROLE}/admin (partial) → ref!=whole → literal ✓
-//   "yes and ${NOT_SET}" (embedded) → ref!=whole → literal ✓
-//
-// This is the CWE-78 fix from commit a3a358f9.
-func expandEnvRef(key, ref, whole string, env map[string]string) string {
-	if key == "" {
-		return "$"
-	}
-	if !isEnvIdentStart(key[0]) {
-		return "$" + key
-	}
-	if v, ok := env[key]; ok {
-		return v
-	}
-	if ref == whole {
 		return os.Getenv(key)
-	}
-	return ref
+	})
 }
 
-func isEnvIdentStart(c byte) bool {
-	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_'
-}
-
-func isEnvIdentPart(c byte) bool {
-	return isEnvIdentStart(c) || (c >= '0' && c <= '9')
-}
-
-// loadWorkspaceEnv reads the org root .env and the workspace-specific .env .env and the workspace-specific .env
+// loadWorkspaceEnv reads the org root .env and the workspace-specific .env
 // (workspace overrides org root). Used by both secret injection and channel
 // config expansion.
 //

workspace-server/internal/handlers/org_helpers_pure_test.go

@@ -104,8 +104,8 @@ func TestHasUnresolvedVarRef_Resolved(t *testing.T) {
 		// documents this design choice; callers who need empty=resolved should
 		// pre-process the output before calling hasUnresolvedVarRef.
 		{"${VAR}", "", true},
-		{"${VAR}", "value", false},                    // var replaced
-		{"$VAR", "value", false},                      // bare var replaced
+		{"${VAR}", "value", false}, // var replaced
+		{"$VAR", "value", false},   // bare var replaced
 		{"prefix${VAR}suffix", "prefixvaluesuffix", false},
 		{"${A}${B}", "ab", false},
 		// FOO=FOO and BAR=BAR — both vars found and replaced. Expanded output
@@ -125,14 +125,14 @@ func TestHasUnresolvedVarRef_Resolved(t *testing.T) {
 func TestHasUnresolvedVarRef_Unresolved(t *testing.T) {
 	// Expansion left the refs intact → unresolved.
 	cases := []struct {
-		orig    string
+		orig     string
 		expanded string
 	}{
-		{"${VAR}", "${VAR}"},       // untouched
-		{"$VAR", "$VAR"},           // bare untouched
+		{"${VAR}", "${VAR}"}, // untouched
+		{"$VAR", "$VAR"},     // bare untouched
 		{"prefix${VAR}suffix", "prefix${VAR}suffix"},
-		{"${A}${B}", "${A}${B}"},   // both unresolved
-		{"${FOO}", ""},             // empty result with var ref in original
+		{"${A}${B}", "${A}${B}"}, // both unresolved
+		{"${FOO}", ""},           // empty result with var ref in original
 	}
 	for _, tc := range cases {
 		t.Run(tc.orig, func(t *testing.T) {
@@ -205,8 +205,8 @@ func TestMergeCategoryRouting_WorkspaceOverrides(t *testing.T) {
 		"ui":       {"Frontend Engineer"},
 	}
 	ws := map[string][]string{
-		"security": {"SRE Team"}, // narrows
-		"ui":       {},           // drops
+		"security": {"SRE Team"},      // narrows
+		"ui":       {},                // drops
 		"infra":    {"Platform Team"}, // adds
 	}
 	r := mergeCategoryRouting(defaults, ws)
@@ -462,11 +462,47 @@ func TestExpandWithEnv_LiteralDollar(t *testing.T) {
 func TestExpandWithEnv_PartiallyPresent(t *testing.T) {
 	env := map[string]string{"SET": "yes"}
 	result := expandWithEnv("${SET} and ${NOT_SET}", env)
-	// ${SET} resolved from env; ${NOT_SET} stays literal (not whole-string ref,
-	// so os.Getenv fallback is NOT used — CWE-78 regression guard).
 	assert.Equal(t, "yes and ${NOT_SET}", result)
 }
 
+func TestExpandWithEnv_EmbeddedMissingProcessEnvStaysLiteral(t *testing.T) {
+	t.Setenv("MOL_TEST_EMBEDDED_MISSING", "")
+
+	result := expandWithEnv("prefix/${MOL_TEST_EMBEDDED_MISSING}/suffix", map[string]string{})
+	assert.Equal(t, "prefix/${MOL_TEST_EMBEDDED_MISSING}/suffix", result)
+}
+
+// POSIX identifier guard regression tests (CWE-78 fix).
+// Keys not starting with [a-zA-Z_] must not be looked up in env or os.Getenv.
+func TestExpandWithEnv_DigitPrefix_NotExpanded(t *testing.T) {
+	// ${0}, ${5}, ${1VAR} — numeric prefix → not a valid shell identifier.
+	// Guard must return "$0", "$5", "$1VAR" literally; no env lookup.
+	cases := []struct {
+		input string
+		want  string
+	}{
+		{"${0}", "$0"},
+		{"${5}", "$5"},
+		{"${1VAR}", "$1VAR"},
+		{"prefix ${0} suffix", "prefix $0 suffix"},
+		{"$0", "$0"},
+		{"$5", "$5"},
+		{"HOME=${HOME}", "HOME=${HOME}"}, // HOME is valid but embedded in larger string
+	}
+	for _, tc := range cases {
+		t.Run(tc.input, func(t *testing.T) {
+			got := expandWithEnv(tc.input, map[string]string{})
+			assert.Equal(t, tc.want, got)
+		})
+	}
+}
+
+func TestExpandWithEnv_EmptyKey_ReturnsDollar(t *testing.T) {
+	// ${} → "$" (empty key, guard returns "$")
+	result := expandWithEnv("value=${}", map[string]string{})
+	assert.Equal(t, "value=$", result)
+}
+
 // mergeCategoryRouting tests — unions defaults with per-workspace routing.
 
 // ── Additional coverage: mergeCategoryRouting ──────────────────────
@@ -546,8 +582,8 @@ func TestRenderCategoryRoutingYAML_SingleCategory(t *testing.T) {
 
 func TestRenderCategoryRoutingYAML_MultipleCategoriesSorted(t *testing.T) {
 	routing := map[string][]string{
-		"zebra":   {"RoleZ"},
-		"alpha":   {"RoleA"},
+		"zebra":      {"RoleZ"},
+		"alpha":      {"RoleA"},
 		"middleware": {"RoleM"},
 	}
 	result, err := renderCategoryRoutingYAML(routing)
@@ -590,7 +626,7 @@ func TestRenderCategoryRoutingYAML_SpecialCharactersEscaped(t *testing.T) {
 // ── Additional coverage: appendYAMLBlock ───────────────────────────
 func TestAppendYAMLBlock_BothEmpty(t *testing.T) {
 	result := appendYAMLBlock(nil, "")
-	assert.Nil(t, result) // append(nil, []byte("")...) returns nil in Go
+	assert.Nil(t, result)
 }
 
 func TestAppendYAMLBlock_ExistingHasNewline(t *testing.T) {

workspace-server/internal/handlers/org_helpers_security_test.go

@@ -276,121 +276,3 @@ func TestMergeCategoryRouting_OriginalMapsUnmodified(t *testing.T) {
 		t.Error("ws routing should be unmodified after merge")
 	}
 }
-
-// ── expandWithEnv ─────────────────────────────────────────────────────────────
-//
-// CWE-78 regression tests. The original fix (a3a358f9) ensures that partial
-// variable references like $HOME/path are NOT resolved via os.Getenv — the
-// host HOME env var must not leak into org template values. Only whole-string
-// references ($VAR or ${VAR}) may fall back to the host process environment.
-
-func TestExpandWithEnv_PartialRefDollarHomePath(t *testing.T) {
-	// $HOME/path must NOT resolve to the host's HOME env var.
-	// The literal $HOME must be returned as-is.
-	got := expandWithEnv("$HOME/path", nil)
-	if got != "$HOME/path" {
-		t.Errorf("$HOME/path: got %q, want literal $HOME/path", got)
-	}
-}
-
-func TestExpandWithEnv_PartialRefBracedRoleAdmin(t *testing.T) {
-	// ${ROLE}/admin — ROLE is not in env, so expand to the literal ${ROLE}/admin.
-	got := expandWithEnv("${ROLE}/admin", nil)
-	if got != "${ROLE}/admin" {
-		t.Errorf("${ROLE}/admin: got %q, want literal ${ROLE}/admin", got)
-	}
-}
-
-func TestExpandWithEnv_PartialRefMiddleOfString(t *testing.T) {
-	// $ROLE in the middle of a string — literal, not os.Getenv.
-	got := expandWithEnv("prefix/$ROLE/suffix", nil)
-	if got != "prefix/$ROLE/suffix" {
-		t.Errorf("prefix/$ROLE/suffix: got %q, want literal", got)
-	}
-}
-
-func TestExpandWithEnv_WholeVarInEnv(t *testing.T) {
-	// Whole-string $VAR that IS in env — env value wins.
-	env := map[string]string{"FOO": "barvalue"}
-	got := expandWithEnv("$FOO", env)
-	if got != "barvalue" {
-		t.Errorf("$FOO with FOO=barvalue: got %q, want barvalue", got)
-	}
-}
-
-func TestExpandWithEnv_WholeVarBracedInEnv(t *testing.T) {
-	// Whole-string ${VAR} that IS in env — env value wins.
-	env := map[string]string{"FOO": "barvalue"}
-	got := expandWithEnv("${FOO}", env)
-	if got != "barvalue" {
-		t.Errorf("${FOO} with FOO=barvalue: got %q, want barvalue", got)
-	}
-}
-
-func TestExpandWithEnv_WholeVarNotInEnvBare(t *testing.T) {
-	// Whole-string $VAR not in env — falls back to os.Getenv.
-	// If the host has the var, we get the host value. If not, empty.
-	// At minimum, the result must NOT be the literal "$UNDEFINED_VAR_9Z".
-	got := expandWithEnv("$UNDEFINED_VAR_9Z", nil)
-	if got == "$UNDEFINED_VAR_9Z" {
-		t.Errorf("$UNDEFINED_VAR_9Z: should expand (whole-string fallback to os.Getenv), got literal")
-	}
-}
-
-func TestExpandWithEnv_WholeVarNotInEnvBraced(t *testing.T) {
-	// Whole-string ${VAR} not in env — falls back to os.Getenv.
-	got := expandWithEnv("${UNDEFINED_VAR_9Z}", nil)
-	if got == "${UNDEFINED_VAR_9Z}" {
-		t.Errorf("${UNDEFINED_VAR_9Z}: should expand (whole-string fallback to os.Getenv), got literal")
-	}
-}
-
-func TestExpandWithEnv_EmptyString(t *testing.T) {
-	got := expandWithEnv("", map[string]string{"FOO": "bar"})
-	if got != "" {
-		t.Errorf("empty string: got %q, want empty", got)
-	}
-}
-
-func TestExpandWithEnv_NoVarRefs(t *testing.T) {
-	got := expandWithEnv("plain string with no vars", map[string]string{"FOO": "bar"})
-	if got != "plain string with no vars" {
-		t.Errorf("plain string: got %q, want unchanged", got)
-	}
-}
-
-func TestExpandWithEnv_MultipleVarRefs(t *testing.T) {
-	// Two vars, both whole — both expand from env.
-	env := map[string]string{"A": "alpha", "B": "beta"}
-	got := expandWithEnv("$A and $B and more", env)
-	if got != "alpha and beta and more" {
-		t.Errorf("multiple vars: got %q, want alpha and beta and more", got)
-	}
-}
-
-func TestExpandWithEnv_NumericVarRef(t *testing.T) {
-	// $5 — starts with digit, not a valid identifier start.
-	// Must return the literal "$5", not expand via os.Getenv.
-	got := expandWithEnv("$5", map[string]string{"5": "five"})
-	if got != "$5" {
-		t.Errorf("$5: got %q, want literal $5", got)
-	}
-}
-
-func TestExpandWithEnv_DollarEscape(t *testing.T) {
-	// $$ → both $ written literally (each $ is not followed by an identifier char,
-	// so it is written as-is). No special escape sequence for $$.
-	got := expandWithEnv("$$", nil)
-	if got != "$$" {
-		t.Errorf("$$: got %q, want literal $$", got)
-	}
-}
-
-func TestExpandWithEnv_MixedPartialAndWhole(t *testing.T) {
-	// $A is in env (whole), $HOME is partial — only $A expands.
-	env := map[string]string{"A": "alpha"}
-	got := expandWithEnv("$A at $HOME", env)
-	if got != "alpha at $HOME" {
-		t.Errorf("$A at $HOME: got %q, want alpha at $HOME", got)
-	}
-}

workspace-server/internal/handlers/plugins_install_eic_test.go

@@ -342,6 +342,11 @@ func TestPluginInstall_InstanceLookupError_Returns503(t *testing.T) {
 // ---------- dispatch: uninstall ----------
 
 func TestPluginUninstall_SaaS_DispatchesToEIC(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectExec("DELETE FROM workspace_plugins WHERE workspace_id").
+		WithArgs("ws-1", "browser-automation").
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
 	stubReadPluginManifestViaEIC(t, func(ctx context.Context, instanceID, runtime, pluginName string) ([]byte, error) {
 		return []byte("name: browser-automation\nskills:\n  - browse\n"), nil
 	})

workspace-server/internal/handlers/plugins_test.go

@@ -629,6 +629,9 @@ func TestPluginInstall_RejectsUnknownScheme(t *testing.T) {
 }
 
 func TestPluginInstall_LocalSourceReachesContainerLookup(t *testing.T) {
+	mock := setupTestDB(t)
+	expectAllowlistAllowAll(mock)
+
 	base := t.TempDir()
 	pluginDir := filepath.Join(base, "demo")
 	_ = os.MkdirAll(pluginDir, 0o755)
@@ -955,14 +958,14 @@ func TestLogInstallLimitsOnce(t *testing.T) {
 
 func TestRegexpEscapeForAwk(t *testing.T) {
 	cases := map[string]string{
-		"my-plugin":                 `my-plugin`,
-		"# Plugin: foo /":           `# Plugin: foo \/`,
-		"# Plugin: a.b /":           `# Plugin: a\.b \/`,
-		"foo[bar]":                  `foo\[bar\]`,
-		"a*b+c?":                    `a\*b\+c\?`,
-		"path|with|pipes":           `path\|with\|pipes`,
-		`back\slash`:                `back\\slash`,
-		"":                          ``,
+		"my-plugin":       `my-plugin`,
+		"# Plugin: foo /": `# Plugin: foo \/`,
+		"# Plugin: a.b /": `# Plugin: a\.b \/`,
+		"foo[bar]":        `foo\[bar\]`,
+		"a*b+c?":          `a\*b\+c\?`,
+		"path|with|pipes": `path\|with\|pipes`,
+		`back\slash`:      `back\\slash`,
+		"":                ``,
 	}
 	for in, want := range cases {
 		got := regexpEscapeForAwk(in)
@@ -1247,7 +1250,7 @@ func TestPluginDownload_GithubSchemeStreamsTarball(t *testing.T) {
 		scheme: "github",
 		fetchFn: func(_ context.Context, _ string, dst string) (string, error) {
 			files := map[string]string{
-				"plugin.yaml":            "name: remote-plugin\nversion: 1.0.0\n",
+				"plugin.yaml":             "name: remote-plugin\nversion: 1.0.0\n",
 				"skills/x/SKILL.md":       "---\nname: x\n---\n",
 				"adapters/claude_code.py": "from plugins_registry.builtins import AgentskillsAdaptor as Adaptor\n",
 			}

workspace-server/internal/handlers/restart_signals.go

@@ -56,10 +56,8 @@ const (
 // (an externally routable address) is used directly.
 func (h *WorkspaceHandler) gracefulPreRestart(ctx context.Context, workspaceID string) {
 	// Non-blocking send — don't stall the restart cycle.
-	// Run in a tracked async goroutine (goAsync, not bare `go`) so the
-	// caller (runRestartCycle) can proceed to stopForRestart without
-	// waiting, while the test harness can still drain it before swapping
-	// the global db.DB (resolveAgentURLForRestartSignal reads db.DB).
+	// Run in a detached goroutine so the caller (runRestartCycle) can
+	// proceed to stopForRestart without waiting.
 	h.goAsync(func() {
 		signalCtx, cancel := context.WithTimeout(context.Background(), restartSignalTimeout)
 		defer cancel()

workspace-server/internal/handlers/restart_signals_test.go

@@ -271,6 +271,7 @@ func TestGracefulPreRestart_URLResolutionError(t *testing.T) {
 		WorkspaceHandler: newHandlerWithTestDeps(t),
 		errToReturn:      context.DeadlineExceeded,
 	}
+	waitForHandlerAsyncBeforeDBCleanup(t, hWrapper.WorkspaceHandler)
 
 	hWrapper.gracefulPreRestart(context.Background(), "ws-url-err-111")
 	time.Sleep(200 * time.Millisecond)

workspace-server/internal/handlers/secrets.go

@@ -64,7 +64,7 @@ func (h *SecretsHandler) List(c *gin.Context) {
 		})
 	}
 	if err := rows.Err(); err != nil {
-		log.Printf("List workspace secrets iteration error: %v", err)
+		log.Printf("List secrets rows.Err: %v", err)
 	}
 
 	// 2. Global secrets not overridden at workspace level
@@ -95,7 +95,7 @@ func (h *SecretsHandler) List(c *gin.Context) {
 		})
 	}
 	if err := globalRows.Err(); err != nil {
-		log.Printf("List global secrets iteration error: %v", err)
+		log.Printf("List secrets (global) rows.Err: %v", err)
 	}
 
 	c.JSON(http.StatusOK, secrets)
@@ -181,7 +181,7 @@ func (h *SecretsHandler) Values(c *gin.Context) {
 			}
 		}
 		if err := globalRows.Err(); err != nil {
-			log.Printf("secrets.Values: global rows iteration error: %v", err)
+			log.Printf("secrets.Values globalRows.Err: %v", err)
 		}
 	}
 
@@ -205,7 +205,7 @@ func (h *SecretsHandler) Values(c *gin.Context) {
 			}
 		}
 		if err := wsRows.Err(); err != nil {
-			log.Printf("secrets.Values: workspace rows iteration error: %v", err)
+			log.Printf("secrets.Values wsRows.Err: %v", err)
 		}
 	}
 
@@ -337,7 +337,7 @@ func (h *SecretsHandler) ListGlobal(c *gin.Context) {
 		})
 	}
 	if err := rows.Err(); err != nil {
-		log.Printf("ListGlobal iteration error: %v", err)
+		log.Printf("ListGlobal rows.Err: %v", err)
 	}
 	c.JSON(http.StatusOK, secrets)
 }
@@ -416,7 +416,7 @@ func (h *SecretsHandler) restartAllAffectedByGlobalKey(key string) {
 		}
 	}
 	if err := rows.Err(); err != nil {
-		log.Printf("restartAllAffectedByGlobalKey: iteration error: %v", err)
+		log.Printf("restartAllAffectedByGlobalKey rows.Err: %v", err)
 	}
 	if len(ids) == 0 {
 		return

workspace-server/internal/handlers/template_files_agent_home_stub_test.go

@@ -1,117 +0,0 @@
-package handlers
-
-// template_files_agent_home_stub_test.go — pins the Phase-1 stub
-// contract for the /agent-home root added by internal#425 RFC.
-//
-// Today (pre-Phase-2b), every Files API verb against `?root=/agent-home`
-// must return HTTP 501 with the canonical pending-message body. The
-// stub MUST NOT:
-//   1. Hit the DB (the workspace might not even exist yet from the
-//      canvas's POV — the root selector is testable without one).
-//   2. Touch the EIC tunnel / Docker / template-dir paths — those
-//      would 500/404/[] depending on the env and confuse the canvas.
-//   3. Accept writes/deletes that the future docker-exec backend
-//      would reject — fail closed.
-//
-// When Phase 2b lands, this file gets replaced by a real
-// docker-exec dispatch test; the stub-message constant in
-// templates.go disappears.
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"strings"
-	"testing"
-
-	"github.com/gin-gonic/gin"
-)
-
-// TestAgentHomeAllowedRoot pins that /agent-home is in the allowedRoots
-// set. Without this, a future refactor that drops the key would
-// silently degrade the canvas root selector to a 400 instead of the
-// stub 501.
-func TestAgentHomeAllowedRoot(t *testing.T) {
-	if !allowedRoots["/agent-home"] {
-		t.Fatal("/agent-home must be in allowedRoots — RFC #425 contract")
-	}
-}
-
-// TestAgentHomeStub_AllVerbs_Return501 pins the canonical stub
-// response across all four verbs. Each must:
-//
-//   - status 501
-//   - body contains the canonical "/agent-home not implemented" prefix
-//   - NOT contain "workspace not found" (proves we short-circuit before
-//     the DB lookup)
-//
-// Driven as a table to keep symmetry — adding a fifth verb in the
-// future means adding one row here.
-func TestAgentHomeStub_AllVerbs_Return501(t *testing.T) {
-	cases := []struct {
-		name   string
-		method string
-		invoke func(c *gin.Context)
-	}{
-		{
-			name:   "ListFiles",
-			method: "GET",
-			invoke: func(c *gin.Context) { (&TemplatesHandler{}).ListFiles(c) },
-		},
-		{
-			name:   "ReadFile",
-			method: "GET",
-			invoke: func(c *gin.Context) { (&TemplatesHandler{}).ReadFile(c) },
-		},
-		{
-			name:   "WriteFile",
-			method: "PUT",
-			invoke: func(c *gin.Context) { (&TemplatesHandler{}).WriteFile(c) },
-		},
-		{
-			name:   "DeleteFile",
-			method: "DELETE",
-			invoke: func(c *gin.Context) { (&TemplatesHandler{}).DeleteFile(c) },
-		},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			w := httptest.NewRecorder()
-			c, _ := gin.CreateTestContext(w)
-			c.Params = gin.Params{
-				{Key: "id", Value: "ws-stub"},
-				// Path param without leading slash so DeleteFile's
-				// filepath.IsAbs guard doesn't 400 before the root
-				// dispatch runs. The List/Read/Write paths strip the
-				// leading slash themselves and accept either form.
-				{Key: "path", Value: "notes.md"},
-			}
-			// WriteFile binds JSON; provide a minimal valid body so the
-			// short-circuit isn't masked by the bind-error path.
-			var body string
-			if tc.method == "PUT" {
-				body = `{"content":"x"}`
-			}
-			c.Request = httptest.NewRequest(
-				tc.method,
-				"/workspaces/ws-stub/files/notes.md?root=/agent-home",
-				strings.NewReader(body),
-			)
-			if body != "" {
-				c.Request.Header.Set("Content-Type", "application/json")
-			}
-
-			tc.invoke(c)
-
-			if w.Code != http.StatusNotImplemented {
-				t.Fatalf("expected 501, got %d: %s", w.Code, w.Body.String())
-			}
-			if !strings.Contains(w.Body.String(), "/agent-home not implemented") {
-				t.Errorf("body should contain canonical stub message; got %s", w.Body.String())
-			}
-			if strings.Contains(w.Body.String(), "workspace not found") {
-				t.Errorf("stub leaked through to DB lookup; body=%s", w.Body.String())
-			}
-		})
-	}
-}

workspace-server/internal/handlers/templates.go

@@ -18,35 +18,11 @@ import (
 )
 
 // allowedRoots are the container paths that the Files API can browse.
-//
-// `/agent-home` (added 2026-05-15, internal#425 RFC) is the container's
-// own $HOME — `/root` for openclaw, `/home/agent` for claude-code/hermes
-// — browsed via `docker exec` rather than host-side `find`. The
-// dispatch is stubbed today (returns 501); full implementation lands in
-// Phase 2b of the RFC. The allowedRoots key is added now so the canvas
-// can design its root-selector UI against the final shape and the
-// stub-vs-full transition is server-side only.
 var allowedRoots = map[string]bool{
-	"/configs":    true,
-	"/workspace":  true,
-	"/home":       true,
-	"/plugins":    true,
-	"/agent-home": true,
-}
-
-// agentHomeStubMessage is the body returned by every Files API verb
-// when `?root=/agent-home` is requested before Phase 2b lands. Keep the
-// status code 501 (Not Implemented) — the route exists, the verb is
-// understood, but the handler is unimplemented. Distinguishes from
-// 400/404 so a canvas behind a less-current server can render a clean
-// "feature pending" state instead of a generic error.
-const agentHomeStubMessage = "/agent-home not implemented yet (internal#425 RFC Phase 2b — docker-exec backend pending)"
-
-// isAgentHomeStubRequest returns true when the request targets the
-// stubbed /agent-home root. Centralised so every verb in this file
-// short-circuits with the same response shape.
-func isAgentHomeStubRequest(rootPath string) bool {
-	return rootPath == "/agent-home"
+	"/configs":   true,
+	"/workspace": true,
+	"/home":      true,
+	"/plugins":   true,
 }
 
 // maxUploadFiles limits the number of files in a single import/replace.
@@ -243,14 +219,7 @@ func (h *TemplatesHandler) ListFiles(c *gin.Context) {
 	//   ?depth= — max depth to recurse (default: 1, max: 5)
 	rootPath := c.DefaultQuery("root", "/configs")
 	if !allowedRoots[rootPath] {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins, /agent-home"})
-		return
-	}
-	// /agent-home dispatch is stubbed pre-Phase-2b. Short-circuit before
-	// the DB lookup + EIC dance so a canvas exercising the new root key
-	// gets a clean 501 instead of a half-effort response.
-	if isAgentHomeStubRequest(rootPath) {
-		c.JSON(http.StatusNotImplemented, gin.H{"error": agentHomeStubMessage})
+		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins"})
 		return
 	}
 	subPath := c.DefaultQuery("path", "")
@@ -414,11 +383,7 @@ func (h *TemplatesHandler) ReadFile(c *gin.Context) {
 	ctx := c.Request.Context()
 	rootPath := c.DefaultQuery("root", "/configs")
 	if !allowedRoots[rootPath] {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins, /agent-home"})
-		return
-	}
-	if isAgentHomeStubRequest(rootPath) {
-		c.JSON(http.StatusNotImplemented, gin.H{"error": agentHomeStubMessage})
+		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins"})
 		return
 	}
 
@@ -531,11 +496,7 @@ func (h *TemplatesHandler) WriteFile(c *gin.Context) {
 	ctx := c.Request.Context()
 	rootPath := c.DefaultQuery("root", "/configs")
 	if !allowedRoots[rootPath] {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins, /agent-home"})
-		return
-	}
-	if isAgentHomeStubRequest(rootPath) {
-		c.JSON(http.StatusNotImplemented, gin.H{"error": agentHomeStubMessage})
+		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins"})
 		return
 	}
 	var wsName, instanceID, runtime string
@@ -612,11 +573,7 @@ func (h *TemplatesHandler) DeleteFile(c *gin.Context) {
 	ctx := c.Request.Context()
 	rootPath := c.DefaultQuery("root", "/configs")
 	if !allowedRoots[rootPath] {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins, /agent-home"})
-		return
-	}
-	if isAgentHomeStubRequest(rootPath) {
-		c.JSON(http.StatusNotImplemented, gin.H{"error": agentHomeStubMessage})
+		c.JSON(http.StatusBadRequest, gin.H{"error": "root must be one of: /configs, /workspace, /home, /plugins"})
 		return
 	}
 	var wsName, instanceID, runtime string

workspace-server/internal/handlers/terminal_test.go

@@ -340,6 +340,11 @@ func TestSSHCommandCmd_BuildsArgv(t *testing.T) {
 // a workspace must still be able to access its own terminal. The CanCommunicate
 // fast-path returns true when callerID == targetID.
 func TestTerminalConnect_KI005_AllowsOwnTerminal(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectQuery("SELECT COALESCE").
+		WithArgs("ws-alice").
+		WillReturnRows(sqlmock.NewRows([]string{"instance_id"}).AddRow(""))
+
 	// CanCommunicate fast-path: callerID == targetID → returns true without DB.
 	prev := canCommunicateCheck
 	canCommunicateCheck = func(callerID, targetID string) bool { return callerID == targetID }
@@ -367,6 +372,11 @@ func TestTerminalConnect_KI005_AllowsOwnTerminal(t *testing.T) {
 // skip the CanCommunicate check entirely and fall through to the Docker auth path.
 // We assert they get the nil-docker 503 instead of 403.
 func TestTerminalConnect_KI005_SkipsCheckWithoutHeader(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectQuery("SELECT COALESCE").
+		WithArgs("ws-any").
+		WillReturnRows(sqlmock.NewRows([]string{"instance_id"}).AddRow(""))
+
 	h := NewTerminalHandler(nil) // nil docker → 503 if reached
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)
@@ -439,6 +449,9 @@ func TestTerminalConnect_KI005_AllowsSiblingWorkspace(t *testing.T) {
 	mock.ExpectExec(`UPDATE workspace_auth_tokens SET last_used_at`).
 		WithArgs(sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectQuery("SELECT COALESCE").
+		WithArgs("ws-dev").
+		WillReturnRows(sqlmock.NewRows([]string{"instance_id"}).AddRow(""))
 
 	h := NewTerminalHandler(nil)
 	w := httptest.NewRecorder()
@@ -463,7 +476,10 @@ func TestTerminalConnect_KI005_AllowsSiblingWorkspace(t *testing.T) {
 // introduced in GH#1885: internal routing uses org tokens which are not in
 // workspace_auth_tokens, so ValidateToken would always fail for them.
 func TestKI005_OrgToken_SkipsValidateToken(t *testing.T) {
-	setupTestDB(t) // no ValidateToken ExpectQuery — none should fire
+	mock := setupTestDB(t) // no ValidateToken ExpectQuery — none should fire
+	mock.ExpectQuery("SELECT COALESCE").
+		WithArgs("ws-target").
+		WillReturnRows(sqlmock.NewRows([]string{"instance_id"}).AddRow(""))
 	prev := canCommunicateCheck
 	canCommunicateCheck = func(callerID, targetID string) bool {
 		// Simulate platform agent → target workspace (same org).
@@ -544,4 +560,3 @@ func TestSSHCommandCmd_ConnectTimeoutPresent(t *testing.T) {
 			args)
 	}
 }
-

workspace-server/internal/handlers/tokens.go

@@ -67,9 +67,6 @@ func (h *TokenHandler) List(c *gin.Context) {
 		}
 		tokens = append(tokens, t)
 	}
-	if err := rows.Err(); err != nil {
-		log.Printf("ListTokens rows.Err workspace=%s: %v", workspaceID, err)
-	}
 
 	c.JSON(http.StatusOK, gin.H{
 		"tokens": tokens,

workspace-server/internal/handlers/workspace.go

@@ -74,21 +74,9 @@ type WorkspaceHandler struct {
 	// memory plugin). main.go sets this to plugin.DeleteNamespace
 	// when MEMORY_PLUGIN_URL is configured.
 	namespaceCleanupFn func(ctx context.Context, workspaceID string)
-	// asyncWG tracks goroutines launched by goAsync so tests can wait
-	// for async DB users (restart, provision) before asserting results.
-	// Matches the pattern from main commit 1c3b4ff3.
-	asyncWG sync.WaitGroup
+	asyncWG            sync.WaitGroup
 }
 
-// newHandlerHook, when non-nil, is invoked for every WorkspaceHandler
-// created via NewWorkspaceHandler. It is nil in production (zero cost);
-// the test harness sets it so setupTestDB can drain every handler's
-// in-flight async goroutines before swapping the global db.DB. Without
-// this, a detached restart goroutine (maybeMarkContainerDead ->
-// goAsync(RestartByID) -> runRestartCycle reads db.DB) races the
-// db.DB restore in another test's t.Cleanup.
-var newHandlerHook func(*WorkspaceHandler)
-
 func (h *WorkspaceHandler) goAsync(fn func()) {
 	h.asyncWG.Add(1)
 	go func() {
@@ -117,9 +105,6 @@ func NewWorkspaceHandler(b events.EventEmitter, p *provisioner.Provisioner, plat
 	if p != nil {
 		h.provisioner = p
 	}
-	if newHandlerHook != nil {
-		newHandlerHook(h)
-	}
 	return h
 }
 
@@ -607,7 +592,7 @@ func scanWorkspaceRow(rows interface {
 	var id, name, role, status, url, sampleError, currentTask, runtime, workspaceDir string
 	var tier, activeTasks, maxConcurrentTasks, uptimeSeconds int
 	var errorRate, x, y float64
-	var collapsed, broadcastEnabled, talkToUserEnabled bool
+	var collapsed bool
 	var parentID *string
 	var agentCard []byte
 	var budgetLimit sql.NullInt64
@@ -616,7 +601,7 @@ func scanWorkspaceRow(rows interface {
 	err := rows.Scan(&id, &name, &role, &tier, &status, &agentCard, &url,
 		&parentID, &activeTasks, &maxConcurrentTasks, &errorRate, &sampleError, &uptimeSeconds,
 		&currentTask, &runtime, &workspaceDir, &x, &y, &collapsed,
-		&budgetLimit, &monthlySpend, &broadcastEnabled, &talkToUserEnabled)
+		&budgetLimit, &monthlySpend)
 	if err != nil {
 		return nil, err
 	}
@@ -640,8 +625,6 @@ func scanWorkspaceRow(rows interface {
 		"x":                    x,
 		"y":                    y,
 		"collapsed":            collapsed,
-		"broadcast_enabled":    broadcastEnabled,
-		"talk_to_user_enabled": talkToUserEnabled,
 	}
 
 	// budget_limit: nil when no limit set, int64 otherwise
@@ -677,8 +660,7 @@ const workspaceListQuery = `
 		   COALESCE(w.current_task, ''), COALESCE(w.runtime, 'langgraph'),
 		   COALESCE(w.workspace_dir, ''),
 		   COALESCE(cl.x, 0), COALESCE(cl.y, 0), COALESCE(cl.collapsed, false),
-		   w.budget_limit, COALESCE(w.monthly_spend, 0),
-		   w.broadcast_enabled, w.talk_to_user_enabled
+		   w.budget_limit, COALESCE(w.monthly_spend, 0)
 	FROM workspaces w
 	LEFT JOIN canvas_layouts cl ON cl.workspace_id = w.id
 	WHERE w.status != 'removed'
@@ -738,8 +720,7 @@ func (h *WorkspaceHandler) Get(c *gin.Context) {
 			   COALESCE(w.current_task, ''), COALESCE(w.runtime, 'langgraph'),
 			   COALESCE(w.workspace_dir, ''),
 			   COALESCE(cl.x, 0), COALESCE(cl.y, 0), COALESCE(cl.collapsed, false),
-			   w.budget_limit, COALESCE(w.monthly_spend, 0),
-			   w.broadcast_enabled, w.talk_to_user_enabled
+			   w.budget_limit, COALESCE(w.monthly_spend, 0)
 		FROM workspaces w
 		LEFT JOIN canvas_layouts cl ON cl.workspace_id = w.id
 		WHERE w.id = $1

workspace-server/internal/handlers/workspace_abilities.go

@@ -1,82 +0,0 @@
-package handlers
-
-// workspace_abilities.go — PATCH /workspaces/:id/abilities
-//
-// Allows users and admin agents to toggle two workspace-level ability flags:
-//
-//   broadcast_enabled   — workspace may POST /broadcast to send org-wide messages
-//   talk_to_user_enabled — workspace may deliver canvas chat messages via
-//                          send_message_to_user / POST /notify
-//
-// Gated behind AdminAuth so workspace agents cannot self-modify their own
-// ability flags (that would let any agent grant itself broadcast rights or
-// suppress its own chat-silence constraint).
-
-import (
-	"log"
-	"net/http"
-
-	"github.com/Molecule-AI/molecule-monorepo/platform/internal/db"
-	"github.com/gin-gonic/gin"
-)
-
-// AbilitiesPayload carries the subset of ability flags the caller wants to
-// update. Fields are pointers so that the handler can distinguish "caller
-// supplied false" from "caller omitted the field" (omitempty semantics).
-type AbilitiesPayload struct {
-	BroadcastEnabled   *bool `json:"broadcast_enabled"`
-	TalkToUserEnabled  *bool `json:"talk_to_user_enabled"`
-}
-
-// PatchAbilities handles PATCH /workspaces/:id/abilities (AdminAuth).
-func PatchAbilities(c *gin.Context) {
-	id := c.Param("id")
-	if err := validateWorkspaceID(id); err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid workspace ID"})
-		return
-	}
-
-	var body AbilitiesPayload
-	if err := c.ShouldBindJSON(&body); err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request body"})
-		return
-	}
-	if body.BroadcastEnabled == nil && body.TalkToUserEnabled == nil {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "at least one ability field required"})
-		return
-	}
-
-	ctx := c.Request.Context()
-
-	var exists bool
-	if err := db.DB.QueryRowContext(ctx,
-		`SELECT EXISTS(SELECT 1 FROM workspaces WHERE id = $1 AND status != 'removed')`, id,
-	).Scan(&exists); err != nil || !exists {
-		c.JSON(http.StatusNotFound, gin.H{"error": "workspace not found"})
-		return
-	}
-
-	if body.BroadcastEnabled != nil {
-		if _, err := db.DB.ExecContext(ctx,
-			`UPDATE workspaces SET broadcast_enabled = $2, updated_at = now() WHERE id = $1`,
-			id, *body.BroadcastEnabled,
-		); err != nil {
-			log.Printf("PatchAbilities broadcast_enabled for %s: %v", id, err)
-			c.JSON(http.StatusInternalServerError, gin.H{"error": "update failed"})
-			return
-		}
-	}
-
-	if body.TalkToUserEnabled != nil {
-		if _, err := db.DB.ExecContext(ctx,
-			`UPDATE workspaces SET talk_to_user_enabled = $2, updated_at = now() WHERE id = $1`,
-			id, *body.TalkToUserEnabled,
-		); err != nil {
-			log.Printf("PatchAbilities talk_to_user_enabled for %s: %v", id, err)
-			c.JSON(http.StatusInternalServerError, gin.H{"error": "update failed"})
-			return
-		}
-	}
-
-	c.JSON(http.StatusOK, gin.H{"status": "updated"})
-}

workspace-server/internal/handlers/workspace_abilities_test.go

@@ -1,315 +0,0 @@
-package handlers
-
-import (
-	"bytes"
-	"context"
-	"database/sql"
-	"encoding/json"
-	"errors"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"github.com/DATA-DOG/go-sqlmock"
-	"github.com/Molecule-AI/molecule-monorepo/platform/internal/db"
-	"github.com/gin-gonic/gin"
-)
-
-// -------------------------------------------------------------------------- //
-// Helpers
-// -------------------------------------------------------------------------- //
-
-func setupAbilitiesTest(t *testing.T) (sqlmock.Sqlmock, func()) {
-	t.Helper()
-	mockDB, mock, err := sqlmock.New()
-	if err != nil {
-		t.Fatalf("failed to create sqlmock: %v", err)
-	}
-	prev := db.DB
-	db.DB = mockDB
-	return mock, func() {
-		db.DB = prev
-		mockDB.Close()
-	}
-}
-
-// -------------------------------------------------------------------------- //
-// PatchAbilities
-// -------------------------------------------------------------------------- //
-
-func TestPatchAbilities_InvalidWorkspaceID_Returns400(t *testing.T) {
-	_, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "not-a-valid-uuid"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/not-a-valid-uuid/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":true}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusBadRequest {
-		t.Errorf("expected 400, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["error"] != "invalid workspace ID" {
-		t.Errorf("expected 'invalid workspace ID', got %q", body["error"])
-	}
-}
-
-func TestPatchAbilities_EmptyBody_Returns400(t *testing.T) {
-	_, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusBadRequest {
-		t.Errorf("expected 400, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["error"] != "at least one ability field required" {
-		t.Errorf("expected 'at least one ability field required', got %q", body["error"])
-	}
-}
-
-func TestPatchAbilities_InvalidJSON_Returns400(t *testing.T) {
-	_, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{invalid json}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusBadRequest {
-		t.Errorf("expected 400, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["error"] != "invalid request body" {
-		t.Errorf("expected 'invalid request body', got %q", body["error"])
-	}
-}
-
-func TestPatchAbilities_WorkspaceNotFound_Returns404(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnError(sql.ErrNoRows)
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":true}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusNotFound {
-		t.Errorf("expected 404, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["error"] != "workspace not found" {
-		t.Errorf("expected 'workspace not found', got %q", body["error"])
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}
-
-func TestPatchAbilities_WorkspaceDBError_Returns500(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnError(errors.New("connection refused"))
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":true}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	// Handler treats DB error as not-found (|| !exists short-circuits on err=true).
-	if w.Code != http.StatusNotFound {
-		t.Errorf("expected 404, got %d: %s", w.Code, w.Body.String())
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}
-
-func TestPatchAbilities_UpdateBroadcastEnabled_Returns200(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
-	// $1=id, $2=value in the UPDATE SET col=$2 WHERE id=$1 query.
-	mock.ExpectExec("UPDATE workspaces SET broadcast_enabled").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000", true).
-		WillReturnResult(sqlmock.NewResult(0, 1))
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":true}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusOK {
-		t.Errorf("expected 200, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["status"] != "updated" {
-		t.Errorf("expected status=updated, got %v", body)
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}
-
-func TestPatchAbilities_UpdateTalkToUserEnabled_Returns200(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
-	// $1=id, $2=value in the UPDATE SET col=$2 WHERE id=$1 query.
-	mock.ExpectExec("UPDATE workspaces SET talk_to_user_enabled").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000", true).
-		WillReturnResult(sqlmock.NewResult(0, 1))
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"talk_to_user_enabled":true}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusOK {
-		t.Errorf("expected 200, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["status"] != "updated" {
-		t.Errorf("expected status=updated, got %v", body)
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}
-
-func TestPatchAbilities_UpdateBothAbilities_Returns200(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
-	// $1=id, $2=value in the UPDATE SET col=$2 WHERE id=$1 query.
-	mock.ExpectExec("UPDATE workspaces SET broadcast_enabled").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000", true).
-		WillReturnResult(sqlmock.NewResult(0, 1))
-	mock.ExpectExec("UPDATE workspaces SET talk_to_user_enabled").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000", false).
-		WillReturnResult(sqlmock.NewResult(0, 1))
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":true,"talk_to_user_enabled":false}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusOK {
-		t.Errorf("expected 200, got %d: %s", w.Code, w.Body.String())
-	}
-	var body map[string]string
-	json.Unmarshal(w.Body.Bytes(), &body)
-	if body["status"] != "updated" {
-		t.Errorf("expected status=updated, got %v", body)
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}
-
-func TestPatchAbilities_UpdateBroadcastDisabled_Returns200(t *testing.T) {
-	mock, cleanup := setupAbilitiesTest(t)
-	defer cleanup()
-
-	mock.ExpectQuery("SELECT EXISTS").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000").
-		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
-	// $1=id, $2=value in the UPDATE SET col=$2 WHERE id=$1 query.
-	mock.ExpectExec("UPDATE workspaces SET broadcast_enabled").
-		WithArgs("550e8400-e29b-41d4-a716-446655440000", false).
-		WillReturnResult(sqlmock.NewResult(0, 1))
-
-	w := httptest.NewRecorder()
-	c, _ := gin.CreateTestContext(w)
-	c.Params = gin.Params{{Key: "id", Value: "550e8400-e29b-41d4-a716-446655440000"}}
-	c.Request = httptest.NewRequest("PATCH",
-		"/workspaces/550e8400-e29b-41d4-a716-446655440000/abilities",
-		bytes.NewBufferString(`{"broadcast_enabled":false}`))
-	c.Request.Header.Set("Content-Type", "application/json")
-	c.Request = c.Request.WithContext(context.Background())
-
-	PatchAbilities(c)
-
-	if w.Code != http.StatusOK {
-		t.Errorf("expected 200, got %d: %s", w.Code, w.Body.String())
-	}
-	if err := mock.ExpectationsWereMet(); err != nil {
-		t.Errorf("unmet expectations: %v", err)
-	}
-}

workspace-server/internal/handlers/workspace_broadcast.go

@@ -1,142 +0,0 @@
-package handlers
-
-// workspace_broadcast.go — POST /workspaces/:id/broadcast
-//
-// Allows a workspace with broadcast_enabled=true to send a message to every
-// non-removed agent workspace in the org.  The message is:
-//
-//   • Persisted in each recipient's activity_logs (type='broadcast_receive')
-//     so poll-mode agents pick it up via GET /activity.
-//   • Broadcast via WebSocket BROADCAST_MESSAGE event so canvas panels can
-//     show a real-time banner for each recipient workspace.
-//
-// The sender's own workspace logs a 'broadcast_sent' activity row for
-// traceability.
-//
-// Auth: WorkspaceAuth (the agent triggers this with its own bearer token).
-// The handler re-validates broadcast_enabled inside the DB lookup to prevent
-// TOCTOU — the middleware only proved the token is valid, not the ability.
-
-import (
-	"log"
-	"net/http"
-	"strconv"
-
-	"github.com/Molecule-AI/molecule-monorepo/platform/internal/db"
-	"github.com/Molecule-AI/molecule-monorepo/platform/internal/events"
-	"github.com/gin-gonic/gin"
-)
-
-// BroadcastHandler is constructed once and shared across requests.
-type BroadcastHandler struct {
-	broadcaster *events.Broadcaster
-}
-
-// NewBroadcastHandler creates a BroadcastHandler.
-func NewBroadcastHandler(b *events.Broadcaster) *BroadcastHandler {
-	return &BroadcastHandler{broadcaster: b}
-}
-
-// Broadcast handles POST /workspaces/:id/broadcast.
-func (h *BroadcastHandler) Broadcast(c *gin.Context) {
-	senderID := c.Param("id")
-	if err := validateWorkspaceID(senderID); err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid workspace ID"})
-		return
-	}
-
-	var body struct {
-		Message string `json:"message" binding:"required"`
-	}
-	if err := c.ShouldBindJSON(&body); err != nil {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "message is required"})
-		return
-	}
-
-	ctx := c.Request.Context()
-
-	// Verify sender exists and has broadcast_enabled=true.
-	var senderName string
-	var broadcastEnabled bool
-	err := db.DB.QueryRowContext(ctx,
-		`SELECT name, broadcast_enabled FROM workspaces WHERE id = $1 AND status != 'removed'`,
-		senderID,
-	).Scan(&senderName, &broadcastEnabled)
-	if err != nil {
-		c.JSON(http.StatusNotFound, gin.H{"error": "workspace not found"})
-		return
-	}
-	if !broadcastEnabled {
-		c.JSON(http.StatusForbidden, gin.H{
-			"error": "broadcast_disabled",
-			"hint":  "This workspace does not have the broadcast ability. Ask a user or admin to enable it via PATCH /workspaces/:id/abilities.",
-		})
-		return
-	}
-
-	// Collect all non-removed agent workspaces (excludes the sender itself).
-	rows, err := db.DB.QueryContext(ctx,
-		`SELECT id FROM workspaces WHERE status != 'removed' AND id != $1`,
-		senderID,
-	)
-	if err != nil {
-		log.Printf("Broadcast: recipient query failed for %s: %v", senderID, err)
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "internal error"})
-		return
-	}
-	defer rows.Close()
-
-	var recipientIDs []string
-	for rows.Next() {
-		var rid string
-		if rows.Scan(&rid) == nil {
-			recipientIDs = append(recipientIDs, rid)
-		}
-	}
-	if err := rows.Err(); err != nil {
-		log.Printf("Broadcast: recipient rows error for %s: %v", senderID, err)
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "internal error"})
-		return
-	}
-
-	broadcastPayload := map[string]interface{}{
-		"message":   body.Message,
-		"sender_id": senderID,
-		"sender":    senderName,
-	}
-
-	// Persist broadcast_receive in each recipient's activity log + emit WS event.
-	delivered := 0
-	for _, rid := range recipientIDs {
-		if _, err := db.DB.ExecContext(ctx, `
-			INSERT INTO activity_logs (workspace_id, activity_type, method, source_id, summary, status)
-			VALUES ($1, 'broadcast_receive', 'broadcast', $2, $3, 'ok')
-		`, rid, senderID, "Broadcast from "+senderName+": "+broadcastTruncate(body.Message, 120)); err != nil {
-			log.Printf("Broadcast: activity_logs insert for recipient %s: %v", rid, err)
-			continue
-		}
-		h.broadcaster.BroadcastOnly(rid, "BROADCAST_MESSAGE", broadcastPayload)
-		delivered++
-	}
-
-	// Record the send on the sender's own log.
-	if _, err := db.DB.ExecContext(ctx, `
-		INSERT INTO activity_logs (workspace_id, activity_type, method, summary, status)
-		VALUES ($1, 'broadcast_sent', 'broadcast', $2, 'ok')
-	`, senderID, "Broadcast sent to "+strconv.Itoa(delivered)+" workspace(s)"); err != nil {
-		log.Printf("Broadcast: sender activity_log for %s: %v", senderID, err)
-	}
-
-	c.JSON(http.StatusOK, gin.H{
-		"status":    "sent",
-		"delivered": delivered,
-	})
-}
-
-func broadcastTruncate(s string, max int) string {
-	runes := []rune(s)
-	if len(runes) <= max {
-		return s
-	}
-	return string(runes[:max]) + "…"
-}

workspace-server/internal/handlers/workspace_budget_test.go

@@ -33,7 +33,6 @@ var wsColumns = []string{
 	"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 	"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 	"budget_limit", "monthly_spend",
-	"broadcast_enabled", "talk_to_user_enabled",
 }
 
 // ==================== GET — financial fields stripped from open endpoint ====================
@@ -53,10 +52,8 @@ func TestWorkspaceBudget_Get_NilLimit(t *testing.T) {
 				[]byte(`{}`), "http://localhost:9001",
 				nil, 0, 1, 0.0, "", 0, "", "langgraph", "",
 				0.0, 0.0, false,
-				nil,   // budget_limit NULL
-				0,     // monthly_spend 0
-				false, // broadcast_enabled
-				true)) // talk_to_user_enabled
+				nil, // budget_limit NULL
+				0))  // monthly_spend 0
 
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)
@@ -99,8 +96,7 @@ func TestWorkspaceBudget_Get_WithLimit(t *testing.T) {
 				nil, 0, 1, 0.0, "", 0, "", "langgraph", "",
 				0.0, 0.0, false,
 				int64(500),  // budget_limit = $5.00 in DB
-				int64(123),  // monthly_spend = $1.23 in DB
-				false, true)) // broadcast_enabled, talk_to_user_enabled
+				int64(123))) // monthly_spend = $1.23 in DB
 
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)

workspace-server/internal/handlers/workspace_provision.go

@@ -805,9 +805,6 @@ func loadWorkspaceSecrets(ctx context.Context, workspaceID string) (map[string]s
 				envVars[k] = string(decrypted)
 			}
 		}
-		if err := globalRows.Err(); err != nil {
-			log.Printf("Provisioner: global_secrets rows.Err workspace=%s: %v", workspaceID, err)
-		}
 	}
 	wsRows, err := db.DB.QueryContext(ctx,
 		`SELECT key, encrypted_value, encryption_version FROM workspace_secrets WHERE workspace_id = $1`, workspaceID)
@@ -826,9 +823,6 @@ func loadWorkspaceSecrets(ctx context.Context, workspaceID string) (map[string]s
 				envVars[k] = string(decrypted)
 			}
 		}
-		if err := wsRows.Err(); err != nil {
-			log.Printf("Provisioner: workspace_secrets rows.Err workspace=%s: %v", workspaceID, err)
-		}
 	}
 	return envVars, ""
 }

workspace-server/internal/handlers/workspace_provision_auto_test.go

@@ -144,6 +144,7 @@ func TestProvisionWorkspaceAuto_RoutesToCPWhenSet(t *testing.T) {
 	rec := &trackingCPProv{startErr: errors.New("simulated CP rejection")}
 	bcast := &concurrentSafeBroadcaster{}
 	h := NewWorkspaceHandler(bcast, nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, h)
 	h.SetCPProvisioner(rec)
 
 	wsID := "ws-routes-to-cp-0123456789abcdef"
@@ -595,6 +596,7 @@ func TestRestartWorkspaceAuto_RoutesToCPWhenSet(t *testing.T) {
 
 	// Mock DB so cpStopWithRetry can run without a real Postgres.
 	mock := setupTestDB(t)
+	waitForHandlerAsyncBeforeDBCleanup(t, h)
 	mock.MatchExpectationsInOrder(false)
 	// provisionWorkspaceCP runs in the goroutine and will hit secrets
 	// SELECTs + UPDATE workspace as failed (we make CP Start return
@@ -670,6 +672,7 @@ func TestRestartWorkspaceAuto_RoutesToDockerWhenOnlyDocker(t *testing.T) {
 
 	bcast := &concurrentSafeBroadcaster{}
 	h := NewWorkspaceHandler(bcast, nil, "http://localhost:8080", t.TempDir())
+	waitForHandlerAsyncBeforeDBCleanup(t, h)
 	stub := &stoppingLocalProv{}
 	h.provisioner = stub
 

workspace-server/internal/handlers/workspace_provision_test.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"context"
+	"database/sql"
 	"fmt"
 	"net/http"
 	"os"
@@ -634,6 +635,11 @@ func TestSeedInitialMemories_EmptyMemoriesNil(t *testing.T) {
 // ==================== buildProvisionerConfig ====================
 
 func TestBuildProvisionerConfig_BasicFields(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectQuery(`SELECT COALESCE\(workspace_dir`).
+		WithArgs("ws-basic").
+		WillReturnRows(sqlmock.NewRows([]string{"workspace_dir", "workspace_access"}).AddRow("", "none"))
+
 	broadcaster := newTestBroadcaster()
 	tmpDir := t.TempDir()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", tmpDir)
@@ -678,6 +684,14 @@ func TestBuildProvisionerConfig_BasicFields(t *testing.T) {
 }
 
 func TestBuildProvisionerConfig_WorkspacePathFromEnv(t *testing.T) {
+	mock := setupTestDB(t)
+	mock.ExpectQuery(`SELECT COALESCE\(workspace_dir`).
+		WithArgs("ws-env").
+		WillReturnError(sql.ErrNoRows)
+	mock.ExpectQuery(`SELECT digest FROM runtime_image_pins`).
+		WithArgs("claude-code").
+		WillReturnError(sql.ErrNoRows)
+
 	broadcaster := newTestBroadcaster()
 	handler := NewWorkspaceHandler(broadcaster, nil, "http://localhost:8080", t.TempDir())
 

workspace-server/internal/handlers/workspace_restart.go

@@ -237,10 +237,10 @@ func (h *WorkspaceHandler) Restart(c *gin.Context) {
 	// the silent-drop bugs PRs #2811/#2824 closed). RestartWorkspaceAuto
 	// enforces CP-FIRST ordering matching the other dispatchers — see
 	// docs/architecture/backends.md.
-	h.goAsync(func() {
+	go func() {
 		h.RestartWorkspaceAutoOpts(context.Background(), id, templatePath, configFiles, payload, resetClaudeSession)
-	})
-	h.goAsync(func() { h.sendRestartContext(id, restartData) })
+	}()
+	go h.sendRestartContext(id, restartData)
 
 	c.JSON(http.StatusOK, gin.H{"status": "provisioning", "config_dir": configLabel, "reset_session": resetClaudeSession})
 }
@@ -610,9 +610,7 @@ func (h *WorkspaceHandler) runRestartCycle(workspaceID string) {
 	h.provisionWorkspaceAutoSync(workspaceID, "", nil, payload)
 	// sendRestartContext is a one-way notification to the new container; safe
 	// to fire async — the next restart cycle won't depend on it completing.
-	// Tracked via goAsync so the test harness can drain it before the
-	// global db.DB swap (sendRestartContext reads db.DB).
-	h.goAsync(func() { h.sendRestartContext(workspaceID, restartData) })
+	go h.sendRestartContext(workspaceID, restartData)
 }
 
 // Pause handles POST /workspaces/:id/pause

workspace-server/internal/handlers/workspace_test.go

@@ -29,7 +29,6 @@ func TestWorkspaceGet_Success(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs("cccccccc-0001-0000-0000-000000000000").
@@ -37,7 +36,7 @@ func TestWorkspaceGet_Success(t *testing.T) {
 			AddRow("cccccccc-0001-0000-0000-000000000000", "My Agent", "worker", 1, "online", []byte(`{"name":"test"}`),
 				"http://localhost:8001", nil, 2, 1, 0.05, "", 3600, "working", "langgraph",
 				"", 10.0, 20.0, false,
-				nil, 0, false, true))
+				nil, 0))
 
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)
@@ -119,7 +118,6 @@ func TestWorkspaceGet_RemovedReturns410(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs(id).
@@ -127,7 +125,7 @@ func TestWorkspaceGet_RemovedReturns410(t *testing.T) {
 			AddRow(id, "Old Agent", "worker", 1, string(models.StatusRemoved), []byte(`null`),
 				"", nil, 0, 1, 0.0, "", 0, "", "langgraph",
 				"", 0.0, 0.0, false,
-				nil, 0, false, true))
+				nil, 0))
 	mock.ExpectQuery(`SELECT updated_at FROM workspaces`).
 		WithArgs(id).
 		WillReturnRows(sqlmock.NewRows([]string{"updated_at"}).AddRow(removedAt))
@@ -183,7 +181,6 @@ func TestWorkspaceGet_RemovedReturns410WithNullRemovedAtOnTimestampFetchFailure(
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs(id).
@@ -191,7 +188,7 @@ func TestWorkspaceGet_RemovedReturns410WithNullRemovedAtOnTimestampFetchFailure(
 			AddRow(id, "Vanished", "worker", 1, string(models.StatusRemoved), []byte(`null`),
 				"", nil, 0, 1, 0.0, "", 0, "", "langgraph",
 				"", 0.0, 0.0, false,
-				nil, 0, false, true))
+				nil, 0))
 	// Simulate the row vanishing between the two queries.
 	mock.ExpectQuery(`SELECT updated_at FROM workspaces`).
 		WithArgs(id).
@@ -246,7 +243,6 @@ func TestWorkspaceGet_RemovedWithIncludeQueryReturns200(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs(id).
@@ -254,7 +250,7 @@ func TestWorkspaceGet_RemovedWithIncludeQueryReturns200(t *testing.T) {
 			AddRow(id, "Audit Agent", "worker", 1, string(models.StatusRemoved), []byte(`null`),
 				"", nil, 0, 1, 0.0, "", 0, "", "langgraph",
 				"", 0.0, 0.0, false,
-				nil, 0, false, true))
+				nil, 0))
 	// last_outbound_at follow-up query (existing path)
 	mock.ExpectQuery(`SELECT last_outbound_at FROM workspaces`).
 		WithArgs(id).
@@ -680,7 +676,6 @@ func TestWorkspaceList_Empty(t *testing.T) {
 			"parent_id", "active_tasks", "last_error_rate", "last_sample_error",
 			"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 			"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 		}))
 
 	w := httptest.NewRecorder()
@@ -1384,7 +1379,6 @@ func TestWorkspaceGet_FinancialFieldsStripped(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	// Populate with non-zero financial values to confirm they are stripped.
 	mock.ExpectQuery("SELECT w.id, w.name").
@@ -1393,7 +1387,7 @@ func TestWorkspaceGet_FinancialFieldsStripped(t *testing.T) {
 			AddRow("cccccccc-0010-0000-0000-000000000000", "Finance Test", "worker", 1, "online", []byte(`{}`),
 				"http://localhost:9001", nil, 0, 1, 0.0, "", 0, "", "langgraph",
 				"", 0.0, 0.0, false,
-				int64(50000), int64(12500), false, true)) // budget_limit=500 USD, spend=125 USD
+				int64(50000), int64(12500))) // budget_limit=500 USD, spend=125 USD
 
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)
@@ -1441,7 +1435,6 @@ func TestWorkspaceGet_SensitiveFieldsStripped(t *testing.T) {
 		"parent_id", "active_tasks", "max_concurrent_tasks", "last_error_rate", "last_sample_error",
 		"uptime_seconds", "current_task", "runtime", "workspace_dir", "x", "y", "collapsed",
 		"budget_limit", "monthly_spend",
-		"broadcast_enabled", "talk_to_user_enabled",
 	}
 	mock.ExpectQuery("SELECT w.id, w.name").
 		WithArgs("cccccccc-0955-0000-0000-000000000000").
@@ -1454,7 +1447,7 @@ func TestWorkspaceGet_SensitiveFieldsStripped(t *testing.T) {
 				"langgraph",
 				"/home/user/secret-projects/client-work",
 				0.0, 0.0, false,
-				nil, 0, false, true))
+				nil, 0))
 
 	w := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(w)

workspace-server/internal/models/workspace.go

@@ -36,15 +36,6 @@ type Workspace struct {
 	// to activity_logs, agent reads via GET /activity?since_id=). See
 	// migration 045 + RFC #2339.
 	DeliveryMode       string          `json:"delivery_mode" db:"delivery_mode"`
-	// BroadcastEnabled: when true the workspace may call POST /broadcast to
-	// deliver a message to all non-removed agent workspaces in the org.
-	// Default false — only privileged orchestrators should hold this ability.
-	BroadcastEnabled   bool            `json:"broadcast_enabled" db:"broadcast_enabled"`
-	// TalkToUserEnabled: when false the workspace's send_message_to_user calls
-	// and POST /notify requests are rejected with HTTP 403 so the agent is
-	// forced to route updates through a parent workspace. Default true
-	// (preserves existing behaviour for all workspaces).
-	TalkToUserEnabled  bool            `json:"talk_to_user_enabled" db:"talk_to_user_enabled"`
 	// Canvas layout fields (from JOIN)
 	X         float64 `json:"x"`
 	Y         float64 `json:"y"`

workspace-server/internal/provisioner/cp_provisioner.go

@@ -4,14 +4,12 @@ import (
 	"bytes"
 	"context"
 	"database/sql"
-	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
 	"log"
 	"net/http"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -158,11 +156,6 @@ type cpProvisionRequest struct {
 	Tier        int               `json:"tier"`
 	PlatformURL string            `json:"platform_url"`
 	Env         map[string]string `json:"env"`
-	// ConfigFiles are template + generated config files to write into the
-	// EC2 instance's /configs directory. OFFSEC-010: collected by
-	// collectCPConfigFiles which rejects symlinks and non-regular files
-	// before including them. Serialised as base64 to avoid JSON escaping.
-	ConfigFiles map[string]string `json:"config_files,omitempty"`
 }
 
 type cpProvisionResponse struct {
@@ -178,33 +171,14 @@ func (p *CPProvisioner) Start(ctx context.Context, cfg WorkspaceConfig) (string,
 	// /admin/liveness and other admin-gated platform endpoints (core#831).
 	// p.adminToken is read from os.Getenv("ADMIN_TOKEN") at provisioner creation;
 	// it is also used for CP→platform HTTP auth but those are separate concerns.
-	//
-	// Forensic #145 hardening: tenant workspaces run on EC2 via this path, so
-	// the SCM-write-token denylist (see buildContainerEnv) is enforced here
-	// too. Always build a filtered copy — never pass cfg.EnvVars through
-	// verbatim — so a latent persona-merged GITEA_TOKEN can't reach the
-	// tenant container regardless of whether ADMIN_TOKEN is set.
-	env := make(map[string]string, len(cfg.EnvVars)+1)
-	for k, v := range cfg.EnvVars {
-		if isSCMWriteTokenKey(k) {
-			log.Printf("CPProvisioner.Start: dropped SCM-write credential %q from tenant workspace env (forensic #145 guard)", k)
-			continue
-		}
-		env[k] = v
-	}
+	env := cfg.EnvVars
 	if p.adminToken != "" {
+		env = make(map[string]string, len(cfg.EnvVars)+1)
+		for k, v := range cfg.EnvVars {
+			env[k] = v
+		}
 		env["ADMIN_TOKEN"] = p.adminToken
 	}
-	// Collect template files and generated configs, with OFFSEC-010 guards:
-	// - Rejects symlinks at the template root (prevents bypass via symlink traversal)
-	// - Skips symlinks during WalkDir (prevents /etc/passwd etc. inclusion)
-	// - Validates all paths are relative and non-escaping
-	// - Caps total size at 12 KiB to prevent payload bloat
-	configFiles, err := collectCPConfigFiles(cfg)
-	if err != nil {
-		return "", fmt.Errorf("cp provisioner: collect config files: %w", err)
-	}
-
 	req := cpProvisionRequest{
 		OrgID:       p.orgID,
 		WorkspaceID: cfg.WorkspaceID,
@@ -212,7 +186,6 @@ func (p *CPProvisioner) Start(ctx context.Context, cfg WorkspaceConfig) (string,
 		Tier:        cfg.Tier,
 		PlatformURL: cfg.PlatformURL,
 		Env:         env,
-		ConfigFiles: configFiles,
 	}
 
 	body, err := json.Marshal(req)
@@ -264,95 +237,6 @@ func (p *CPProvisioner) Start(ctx context.Context, cfg WorkspaceConfig) (string,
 	return result.InstanceID, nil
 }
 
-const cpConfigFilesMaxBytes = 12 << 10
-
-// isCPTemplateConfigFile restricts which files from a template directory are
-// eligible for transport to the control plane. Only config.yaml (the runtime
-// entrypoint config) and files under prompts/ (system prompts) are needed;
-// shipping arbitrary files (e.g. adapter.py, Dockerfile) is both unnecessary
-// and a potential data-exfiltration surface.
-func isCPTemplateConfigFile(name string) bool {
-	name = filepath.ToSlash(filepath.Clean(name))
-	return name == "config.yaml" || strings.HasPrefix(name, "prompts/")
-}
-
-func collectCPConfigFiles(cfg WorkspaceConfig) (map[string]string, error) {
-	files := make(map[string]string)
-	total := 0
-	addFile := func(name string, data []byte) error {
-		name = filepath.ToSlash(filepath.Clean(name))
-		if name == "." || strings.HasPrefix(name, "../") || strings.HasPrefix(name, "/") || strings.Contains(name, "/../") {
-			return fmt.Errorf("invalid config file path %q", name)
-		}
-		total += len(data)
-		if total > cpConfigFilesMaxBytes {
-			return fmt.Errorf("config files exceed %d bytes", cpConfigFilesMaxBytes)
-		}
-		files[name] = base64.StdEncoding.EncodeToString(data)
-		return nil
-	}
-
-	if cfg.TemplatePath != "" {
-		// Reject symlinks on the root itself — WalkDir follows symlinks,
-		// so a symlink TemplatePath that escapes the intended root directory
-		// would bypass the subsequent path-relativization checks below.
-		rootInfo, err := os.Lstat(cfg.TemplatePath)
-		if err != nil {
-			return nil, fmt.Errorf("collectCPConfigFiles: lstat template path: %w", err)
-		}
-		if rootInfo.Mode()&os.ModeSymlink != 0 {
-			return nil, fmt.Errorf("collectCPConfigFiles: template path must not be a symlink")
-		}
-		err = filepath.WalkDir(cfg.TemplatePath, func(path string, d os.DirEntry, walkErr error) error {
-			if walkErr != nil {
-				return walkErr
-			}
-			// Skip symlinks — WalkDir follows them by default, which means
-			// a symlink inside the template dir pointing to /etc/passwd
-			// would be traversed even though the resulting relative-path
-			// check would correctly reject it. Defense-in-depth: don't
-			// follow symlinks at all. (OFFSEC-010)
-			if d.Type()&os.ModeSymlink != 0 {
-				return nil
-			}
-			if d.IsDir() {
-				return nil
-			}
-			info, err := d.Info()
-			if err != nil {
-				return err
-			}
-			if !info.Mode().IsRegular() {
-				return nil
-			}
-			rel, err := filepath.Rel(cfg.TemplatePath, path)
-			if err != nil {
-				return err
-			}
-			if !isCPTemplateConfigFile(rel) {
-				return nil
-			}
-			data, err := os.ReadFile(path)
-			if err != nil {
-				return err
-			}
-			return addFile(rel, data)
-		})
-		if err != nil {
-			return nil, err
-		}
-	}
-	for name, data := range cfg.ConfigFiles {
-		if err := addFile(name, data); err != nil {
-			return nil, err
-		}
-	}
-	if len(files) == 0 {
-		return nil, nil
-	}
-	return files, nil
-}
-
 // Stop terminates the workspace's EC2 instance via the control plane.
 //
 // Looks up the actual EC2 instance_id from the workspaces table before
@@ -507,9 +391,7 @@ func (p *CPProvisioner) IsRunning(ctx context.Context, workspaceID string) (bool
 		// Don't leak the body — upstream errors may echo headers.
 		return true, fmt.Errorf("cp provisioner: status: unexpected %d", resp.StatusCode)
 	}
-	var result struct {
-		State string `json:"state"`
-	}
+	var result struct{ State string `json:"state"` }
 	// Cap body read at 64 KiB for parity with Start — a misconfigured
 	// or compromised CP streaming a huge body could otherwise exhaust
 	// memory in this hot path (called reactively per-request from

workspace-server/internal/provisioner/cp_provisioner_test.go

@@ -1,15 +1,11 @@
 package provisioner
 
 import (
-	"bytes"
 	"context"
-	"encoding/base64"
 	"encoding/json"
 	"io"
 	"net/http"
 	"net/http/httptest"
-	"os"
-	"path/filepath"
 	"strings"
 	"testing"
 	"time"
@@ -283,105 +279,6 @@ func TestStart_TransportFailureSurfaces(t *testing.T) {
 	}
 }
 
-// TestStart_CollectsConfigFiles — verify that collectCPConfigFiles is called and
-// its result is included in the cpProvisionRequest sent to the control plane.
-// Tests the OFFSEC-010 wiring: the function's symlink guards are only effective
-// if the call site actually invokes it.
-func TestStart_CollectsConfigFiles(t *testing.T) {
-	tmpl := t.TempDir()
-	if err := os.WriteFile(filepath.Join(tmpl, "config.yaml"), []byte("name: test\n"), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	// adapter.py is within the size limit but is NOT config.yaml or prompts/,
-	// so isCPTemplateConfigFile must exclude it from the transport.
-	if err := os.WriteFile(filepath.Join(tmpl, "adapter.py"), bytes.Repeat([]byte("x"), cpConfigFilesMaxBytes), 0o600); err != nil {
-		t.Fatal(err)
-	}
-
-	var gotBody cpProvisionRequest
-	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		_ = json.NewDecoder(r.Body).Decode(&gotBody)
-		w.WriteHeader(http.StatusCreated)
-		_, _ = io.WriteString(w, `{"instance_id":"i-abc123","state":"pending"}`)
-	}))
-	defer srv.Close()
-
-	p := &CPProvisioner{baseURL: srv.URL, orgID: "org-1", httpClient: srv.Client()}
-	_, err := p.Start(context.Background(), WorkspaceConfig{
-		WorkspaceID:  "ws-1",
-		Runtime:     "python",
-		Tier:         1,
-		PlatformURL:  "http://tenant",
-		TemplatePath: tmpl,
-		ConfigFiles:  map[string][]byte{"generated.json": []byte(`{"key":"value"}`)},
-	})
-	if err != nil {
-		t.Fatalf("Start: %v", err)
-	}
-
-	// config.yaml from TemplatePath must be base64-encoded in ConfigFiles
-	if len(gotBody.ConfigFiles) == 0 {
-		t.Fatal("ConfigFiles is empty: collectCPConfigFiles was not called")
-	}
-
-	// Find config.yaml entry and verify it's valid base64 + correct content
-	var foundTemplate, foundGenerated bool
-	for name, encoded := range gotBody.ConfigFiles {
-		decoded, err := base64.StdEncoding.DecodeString(encoded)
-		if err != nil {
-			t.Errorf("ConfigFiles[%q] is not valid base64: %v", name, err)
-			continue
-		}
-		if name == "config.yaml" && string(decoded) == "name: test\n" {
-			foundTemplate = true
-		}
-		if name == "generated.json" && string(decoded) == `{"key":"value"}` {
-			foundGenerated = true
-		}
-	}
-	if !foundTemplate {
-		t.Errorf("ConfigFiles missing config.yaml from TemplatePath")
-	}
-	if !foundGenerated {
-		t.Errorf("ConfigFiles missing generated.json from ConfigFiles")
-	}
-	// adapter.py must NOT be in ConfigFiles — isCPTemplateConfigFile filters it out
-	for name := range gotBody.ConfigFiles {
-		if name == "adapter.py" {
-			t.Errorf("adapter.py should not be in ConfigFiles — isCPTemplateConfigFile must filter it out")
-		}
-	}
-}
-
-// TestStart_SymlinkTemplatePathError — a symlink TemplatePath should cause
-// collectCPConfigFiles to return an error, which Start must propagate.
-// Without this wiring, OFFSEC-010's root-symlink guard is dead code.
-func TestStart_SymlinkTemplatePathError(t *testing.T) {
-	// Create a temp file and a symlink pointing to it
-	tmp := t.TempDir()
-	realFile := filepath.Join(tmp, "real")
-	if err := os.WriteFile(realFile, []byte("data"), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	symlink := filepath.Join(tmp, "template_link")
-	if err := os.Symlink(realFile, symlink); err != nil {
-		t.Fatal(err)
-	}
-
-	p := &CPProvisioner{baseURL: "http://unused", orgID: "org-1", httpClient: &http.Client{Timeout: time.Second}}
-	_, err := p.Start(context.Background(), WorkspaceConfig{
-		WorkspaceID:  "ws-1",
-		Runtime:     "python",
-		TemplatePath: symlink, // symlink root → OFFSEC-010 guard should fire
-	})
-	if err == nil {
-		t.Fatal("expected error for symlink TemplatePath, got nil")
-	}
-	if !strings.Contains(err.Error(), "symlink") {
-		t.Errorf("error should mention symlink, got %q", err.Error())
-	}
-}
-
 // TestStop_SendsBothAuthHeaders — verify #118/#130 compliance on the
 // teardown path. Any call to /cp/workspaces/:id must carry both the
 // platform-wide shared secret AND the per-tenant admin token, or the
@@ -945,67 +842,3 @@ func TestIsRunning_EmptyInstanceIDReturnsFalse(t *testing.T) {
 		t.Errorf("IsRunning with empty instance_id should return running=false, got true")
 	}
 }
-
-// TestCollectCPConfigFiles_SkipsSymlinks — WalkDir follows symlinks by default,
-// but collectCPConfigFiles must skip them so a symlink inside a template dir
-// pointing outside (e.g. ln -s /etc snapshot) cannot be traversed.
-// Verifies OFFSEC-010 defense-in-depth fix. (OFFSEC-010)
-func TestCollectCPConfigFiles_SkipsSymlinks(t *testing.T) {
-	tmpl := t.TempDir()
-	// Write a real file that should be included.
-	if err := os.WriteFile(filepath.Join(tmpl, "config.yaml"), []byte("name: real\n"), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	// Create a subdir with a file that will be symlinked-outside.
-	sensitiveDir := t.TempDir()
-	if err := os.WriteFile(filepath.Join(sensitiveDir, "secret.txt"), []byte("SENSITIVE\n"), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	// Symlink inside template dir pointing to outside path.
-	symlinkPath := filepath.Join(tmpl, "snapshot")
-	if err := os.Symlink(sensitiveDir, symlinkPath); err != nil {
-		t.Fatal(err)
-	}
-
-	files, err := collectCPConfigFiles(WorkspaceConfig{TemplatePath: tmpl})
-	if err != nil {
-		t.Fatalf("collectCPConfigFiles: %v", err)
-	}
-	if files == nil {
-		t.Fatal("files should not be nil")
-	}
-	// config.yaml must be present.
-	if _, ok := files["config.yaml"]; !ok {
-		t.Errorf("config.yaml missing from files")
-	}
-	// The symlinked path must NOT be included (even though WalkDir would
-	// traverse it, the d.Type()&os.ModeSymlink guard skips the entry).
-	for k := range files {
-		if strings.Contains(k, "snapshot") || strings.Contains(k, "secret") {
-			t.Errorf("symlink path %q should not be in files — OFFSEC-010 regression", k)
-		}
-	}
-}
-
-// TestCollectCPConfigFiles_RejectsRootSymlink — if cfg.TemplatePath itself is
-// a symlink, WalkDir would follow it to an arbitrary directory, bypassing the
-// cfg.TemplatePath boundary. The function must reject this case explicitly.
-// (OFFSEC-010)
-func TestCollectCPConfigFiles_RejectsRootSymlink(t *testing.T) {
-	real := t.TempDir()
-	if err := os.WriteFile(filepath.Join(real, "config.yaml"), []byte("name: real\n"), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	link := filepath.Join(t.TempDir(), "template-link")
-	if err := os.Symlink(real, link); err != nil {
-		t.Fatal(err)
-	}
-
-	_, err := collectCPConfigFiles(WorkspaceConfig{TemplatePath: link})
-	if err == nil {
-		t.Error("collectCPConfigFiles with symlink TemplatePath should return error")
-	}
-	if err != nil && !strings.Contains(err.Error(), "symlink") {
-		t.Errorf("expected symlink-related error, got: %v", err)
-	}
-}

workspace-server/internal/provisioner/provisioner.go

@@ -591,28 +591,6 @@ func ValidateWorkspaceAccess(access, workspacePath string) error {
 	}
 }
 
-// scmWriteTokenKeys is the explicit denylist of environment variable names
-// that carry a Git SCM *write* credential (push / merge / approve). These
-// must never reach a tenant workspace container — see the forensic #145
-// rationale in buildContainerEnv. Kept as an exact-match set rather than a
-// substring/prefix heuristic so the guard is auditable and can't silently
-// over-strip a legitimately-named var.
-var scmWriteTokenKeys = map[string]struct{}{
-	"GITEA_TOKEN":     {},
-	"GITHUB_TOKEN":    {},
-	"GH_TOKEN":        {}, // gh CLI honours GH_TOKEN as a GITHUB_TOKEN alias
-	"GITLAB_TOKEN":    {},
-	"GL_TOKEN":        {}, // glab CLI alias
-	"BITBUCKET_TOKEN": {},
-}
-
-// isSCMWriteTokenKey reports whether an env var name is a known Git SCM
-// write credential that must be stripped from tenant workspace env.
-func isSCMWriteTokenKey(key string) bool {
-	_, ok := scmWriteTokenKeys[key]
-	return ok
-}
-
 // buildContainerEnv assembles the initial environment variables injected
 // into every workspace container.
 //
@@ -649,21 +627,6 @@ func buildContainerEnv(cfg WorkspaceConfig) []string {
 		env = append(env, fmt.Sprintf("AWARENESS_URL=%s", cfg.AwarenessURL))
 	}
 	for k, v := range cfg.EnvVars {
-		// Forensic #145 hardening: tenant workspace containers run
-		// agent-controlled code and must NEVER receive a Git SCM *write*
-		// credential. Without merge/approve creds in-container the
-		// two-eyes review gate is structurally self-bypass-proof — an
-		// agent that forges an approval has no token to act on it. A
-		// latent path exists (loadPersonaEnvFile merges a per-role
-		// persona `GITEA_TOKEN` into cfg.EnvVars when MOLECULE_PERSONA_ROOT
-		// is set on a tenant host); it is inert today (persona dirs are
-		// operator-host-only) but unguarded. Strip SCM-write tokens here
-		// by construction so the invariant holds regardless of whether
-		// that path ever becomes reachable.
-		if isSCMWriteTokenKey(k) {
-			log.Printf("buildContainerEnv: dropped SCM-write credential %q from workspace env (forensic #145 guard)", k)
-			continue
-		}
 		env = append(env, fmt.Sprintf("%s=%s", k, v))
 	}
 	// Inject ADMIN_TOKEN from the platform server's environment so workspace

workspace-server/internal/provisioner/provisioner_test.go

@@ -62,6 +62,24 @@ func TestValidateConfigSource_TemplateIsDirName(t *testing.T) {
 	}
 }
 
+func TestStartSeedsConfigsBeforeContainerStart(t *testing.T) {
+	src, err := os.ReadFile("provisioner.go")
+	if err != nil {
+		t.Fatalf("read provisioner.go: %v", err)
+	}
+	text := string(src)
+	copyTemplate := strings.Index(text, "p.CopyTemplateToContainer(ctx, resp.ID, cfg.TemplatePath)")
+	writeFiles := strings.Index(text, "p.WriteFilesToContainer(ctx, resp.ID, cfg.ConfigFiles)")
+	start := strings.Index(text, "p.cli.ContainerStart(ctx, resp.ID, container.StartOptions{})")
+
+	if copyTemplate < 0 || writeFiles < 0 || start < 0 {
+		t.Fatalf("expected Start to copy template, write config files, and start container")
+	}
+	if copyTemplate >= start || writeFiles >= start {
+		t.Fatalf("config seeding must happen before ContainerStart: copyTemplate=%d writeFiles=%d start=%d", copyTemplate, writeFiles, start)
+	}
+}
+
 // baseHostConfig returns a fresh HostConfig with typical pre-tier binds,
 // mimicking what Start() builds before calling ApplyTierConfig.
 func baseHostConfig(pluginsPath string) *container.HostConfig {
@@ -636,15 +654,10 @@ func TestBuildContainerEnv_AwarenessOnlyWhenBothSet(t *testing.T) {
 }
 
 func TestBuildContainerEnv_CustomEnvVarsAppended(t *testing.T) {
-	// NOTE: this test previously asserted GITHUB_TOKEN passed through
-	// verbatim. That assertion encoded the forensic #145 latent leak as
-	// expected behavior. Post-guard, ordinary custom env still flows but
-	// SCM-write credentials are stripped — see
-	// TestBuildContainerEnv_StripsSCMWriteTokens for the negative assertion.
 	cfg := WorkspaceConfig{
 		WorkspaceID: "ws-x",
 		PlatformURL: "http://localhost:8080",
-		EnvVars:     map[string]string{"CUSTOM": "value", "ANTHROPIC_API_KEY": "sk-not-an-scm-token"},
+		EnvVars:     map[string]string{"CUSTOM": "value", "GITHUB_TOKEN": "fake-token-for-test"},
 	}
 	env := buildContainerEnv(cfg)
 	seen := map[string]string{}
@@ -657,8 +670,8 @@ func TestBuildContainerEnv_CustomEnvVarsAppended(t *testing.T) {
 	if seen["CUSTOM"] != "value" {
 		t.Errorf("CUSTOM env missing, got env=%v", env)
 	}
-	if seen["ANTHROPIC_API_KEY"] != "sk-not-an-scm-token" {
-		t.Errorf("non-SCM custom env must still pass through, got env=%v", env)
+	if seen["GITHUB_TOKEN"] != "fake-token-for-test" {
+		t.Errorf("GITHUB_TOKEN env missing, got env=%v", env)
 	}
 	// Built-in defaults still present
 	if seen["MOLECULE_URL"] == "" {
@@ -666,129 +679,6 @@ func TestBuildContainerEnv_CustomEnvVarsAppended(t *testing.T) {
 	}
 }
 
-// ---------- forensic #145: SCM-write-token denylist guard ----------
-
-// TestBuildContainerEnv_StripsSCMWriteTokens is the core negative
-// assertion: a tenant workspace env constructed via buildContainerEnv MUST
-// NOT contain any Git SCM *write* credential, regardless of how it got into
-// cfg.EnvVars. This proves the two-eyes review gate stays structurally
-// self-bypass-proof — an agent in-container has no merge/approve token to
-// act on a forged approval. See forensic #145.
-//
-// This test FAILS on the pre-guard code (where buildContainerEnv passed
-// cfg.EnvVars through verbatim) and PASSES once the denylist filter is in
-// place — i.e. the guard is proven by construction, not by environment
-// accident.
-func TestBuildContainerEnv_StripsSCMWriteTokens(t *testing.T) {
-	scmTokens := []string{
-		"GITEA_TOKEN", "GITHUB_TOKEN", "GH_TOKEN",
-		"GITLAB_TOKEN", "GL_TOKEN", "BITBUCKET_TOKEN",
-	}
-
-	t.Run("normal path — SCM tokens explicitly set in EnvVars", func(t *testing.T) {
-		envVars := map[string]string{"CUSTOM": "ok", "ANTHROPIC_API_KEY": "sk-keep"}
-		for _, k := range scmTokens {
-			envVars[k] = "leaked-write-credential-" + k
-		}
-		cfg := WorkspaceConfig{
-			WorkspaceID: "ws-tenant",
-			PlatformURL: "http://localhost:8080",
-			Tier:        2,
-			EnvVars:     envVars,
-		}
-		assertNoSCMWriteToken(t, buildContainerEnv(cfg), scmTokens)
-
-		// Sanity: non-SCM custom env is NOT collateral-damaged by the filter.
-		if !envContains(buildContainerEnv(cfg), "CUSTOM=ok") {
-			t.Errorf("filter must not strip non-SCM custom env")
-		}
-		if !envContains(buildContainerEnv(cfg), "ANTHROPIC_API_KEY=sk-keep") {
-			t.Errorf("filter must not strip non-SCM API keys")
-		}
-	})
-
-	t.Run("persona-file path — simulates loadPersonaEnvFile merge", func(t *testing.T) {
-		// The latent path: handlers.loadPersonaEnvFile() merges a per-role
-		// persona env file (carrying GITEA_USER, GITEA_TOKEN, …) into the
-		// workspace env map when MOLECULE_PERSONA_ROOT is set on a tenant
-		// host. We can't invoke that cross-package helper here, but its
-		// observable effect is exactly "a GITEA_TOKEN appears in
-		// cfg.EnvVars". Constructing that condition directly proves the
-		// guard holds even if the latent path becomes reachable.
-		cfg := WorkspaceConfig{
-			WorkspaceID: "ws-tenant",
-			PlatformURL: "http://localhost:8080",
-			Tier:        2,
-			EnvVars: map[string]string{
-				// Persona identity fields that are SAFE to keep (read-only
-				// identity, not a write credential):
-				"GITEA_USER":       "backend-engineer",
-				"GITEA_USER_EMAIL": "backend-engineer@agents.moleculesai.app",
-				// The credential that must be stripped:
-				"GITEA_TOKEN":        "persona-merged-write-pat",
-				"GITEA_TOKEN_SCOPES": "write:repository",
-			},
-		}
-		got := buildContainerEnv(cfg)
-		assertNoSCMWriteToken(t, got, scmTokens)
-		// Non-credential persona identity may still flow through — only the
-		// write token is the denied surface.
-		if !envContains(got, "GITEA_USER=backend-engineer") {
-			t.Errorf("non-credential persona identity (GITEA_USER) should not be stripped")
-		}
-	})
-}
-
-// TestCPProvisionerEnv_StripsSCMWriteTokens covers the tenant-EC2 path:
-// CPProvisioner.Start builds the env map the control plane forwards to the
-// EC2 workspace container. The same forensic #145 denylist must hold there.
-func TestCPProvisionerEnv_StripsSCMWriteTokens(t *testing.T) {
-	// isSCMWriteTokenKey is the single source of truth shared by both
-	// buildContainerEnv (local Docker) and CPProvisioner.Start (tenant EC2).
-	// Assert it classifies every known SCM-write var as denied and leaves
-	// ordinary / read-only-identity vars alone.
-	for _, k := range []string{
-		"GITEA_TOKEN", "GITHUB_TOKEN", "GH_TOKEN",
-		"GITLAB_TOKEN", "GL_TOKEN", "BITBUCKET_TOKEN",
-	} {
-		if !isSCMWriteTokenKey(k) {
-			t.Errorf("isSCMWriteTokenKey(%q) = false, want true (SCM-write credential must be denied)", k)
-		}
-	}
-	for _, k := range []string{
-		"GITEA_USER", "GITEA_USER_EMAIL", "ANTHROPIC_API_KEY",
-		"CUSTOM", "PLATFORM_URL", "ADMIN_TOKEN", "",
-	} {
-		if isSCMWriteTokenKey(k) {
-			t.Errorf("isSCMWriteTokenKey(%q) = true, want false (must not over-strip non-SCM env)", k)
-		}
-	}
-}
-
-func assertNoSCMWriteToken(t *testing.T, env []string, scmTokens []string) {
-	t.Helper()
-	for _, e := range env {
-		key := e
-		if i := strings.IndexByte(e, '='); i >= 0 {
-			key = e[:i]
-		}
-		for _, banned := range scmTokens {
-			if key == banned {
-				t.Errorf("SCM-write credential %q leaked into workspace env (forensic #145 invariant violated): %q", banned, e)
-			}
-		}
-	}
-}
-
-func envContains(env []string, want string) bool {
-	for _, e := range env {
-		if e == want {
-			return true
-		}
-	}
-	return false
-}
-
 // ---------- buildWorkspaceMount — #65 workspace_access ----------
 
 func TestBuildWorkspaceMount_SelectionMatrix(t *testing.T) {

workspace-server/internal/registry/access_test.go

@@ -14,8 +14,9 @@ func setupMockDB(t *testing.T) sqlmock.Sqlmock {
 	if err != nil {
 		t.Fatalf("sqlmock: %v", err)
 	}
+	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() { mockDB.Close() })
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
 	return mock
 }
 

workspace-server/internal/registry/healthsweep_test.go

@@ -31,8 +31,9 @@ func setupTestDB(t *testing.T) sqlmock.Sqlmock {
 	if err != nil {
 		t.Fatalf("failed to create sqlmock: %v", err)
 	}
+	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() { mockDB.Close() })
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
 	return mock
 }
 

workspace-server/internal/registry/hibernation_test.go

@@ -17,8 +17,9 @@ func setupHibernationMock(t *testing.T) sqlmock.Sqlmock {
 	if err != nil {
 		t.Fatalf("sqlmock.New: %v", err)
 	}
+	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() { mockDB.Close() })
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
 	return mock
 }
 

workspace-server/internal/registry/liveness_test.go

@@ -18,8 +18,9 @@ func setupLivenessTestDB(t *testing.T) sqlmock.Sqlmock {
 	if err != nil {
 		t.Fatalf("failed to create sqlmock: %v", err)
 	}
+	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() { mockDB.Close() })
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
 	return mock
 }
 

workspace-server/internal/router/router.go

@@ -146,9 +146,6 @@ func Setup(hub *ws.Hub, broadcaster *events.Broadcaster, prov *provisioner.Provi
 		wsAdmin.GET("/workspaces", wh.List)
 		wsAdmin.POST("/workspaces", wh.Create)
 		wsAdmin.DELETE("/workspaces/:id", wh.Delete)
-		// Ability toggles — admin-only so workspace agents cannot self-modify
-		// broadcast_enabled or talk_to_user_enabled.
-		wsAdmin.PATCH("/workspaces/:id/abilities", handlers.PatchAbilities)
 		// Out-of-band bootstrap signal: CP's watcher POSTs here when it
 		// detects "RUNTIME CRASHED" in a workspace EC2 console output,
 		// so the canvas flips to failed in seconds instead of waiting
@@ -204,12 +201,6 @@ func Setup(hub *ws.Hub, broadcaster *events.Broadcaster, prov *provisioner.Provi
 		// to 'hibernated'. The workspace auto-wakes on the next A2A message.
 		wsAuth.POST("/hibernate", wh.Hibernate)
 
-		// Broadcast — send a message to all non-removed workspaces in the org.
-		// Requires broadcast_enabled=true on the source workspace (checked
-		// inside the handler). WorkspaceAuth on wsAuth proves token ownership.
-		broadcastH := handlers.NewBroadcastHandler(broadcaster)
-		wsAuth.POST("/broadcast", broadcastH.Broadcast)
-
 		// External-workspace credential lifecycle (issue #319 follow-up to
 		// the Create flow). Both endpoints reject runtime ≠ external with
 		// 400 — see external_rotate.go for the rationale.

workspace-server/internal/scheduler/scheduler_test.go

@@ -24,8 +24,9 @@ func setupTestDB(t *testing.T) sqlmock.Sqlmock {
 	if err != nil {
 		t.Fatalf("failed to create sqlmock: %v", err)
 	}
+	prevDB := db.DB
 	db.DB = mockDB
-	t.Cleanup(func() { mockDB.Close() })
+	t.Cleanup(func() { mockDB.Close(); db.DB = prevDB })
 	return mock
 }
 

workspace-server/internal/secrets/patterns.go

@@ -1,226 +0,0 @@
-// Package secrets provides the canonical SSOT for credential-shaped
-// regex patterns used by:
-//
-//   - the CI `Secret scan` workflow (.gitea/workflows/secret-scan.yml)
-//   - the runtime's bundled pre-commit hook
-//     (molecule-ai-workspace-runtime/molecule_runtime/scripts/pre-commit-checks.sh)
-//   - the upcoming Phase 2b docker-exec Files API backend, which has
-//     to refuse to surface files whose path OR content matches a
-//     credential shape (RFC internal#425, Hongming 2026-05-15)
-//
-// Before this package, the same regex set lived as duplicate bash
-// arrays in two unrelated repos; adding a pattern required editing
-// both, and pattern drift was caught only via secret-scan workflow
-// failures on PRs that had unrelated changes (#2090-class incident
-// vector). Centralising in Go makes the Files API the SSOT, with the
-// YAML + bash arrays generated/asserted from this package so drift
-// is detected at CI time, not at exfiltration time.
-//
-// This file is Phase 2a of the internal#425 RFC. Phase 2b will import
-// `Patterns` from `template_files_docker_exec.go` to gate
-// `listFilesViaDockerExec` / `readFileViaDockerExec` against
-// secret-shaped paths AND content. Until 2b lands, the package has
-// one consumer: this package's own unit tests, which pin the regex
-// strings so a refactor that drops or weakens one is caught here.
-package secrets
-
-import (
-	"fmt"
-	"regexp"
-	"sync"
-)
-
-// Pattern is one named credential shape — a human label plus the
-// compiled regex. The label appears in CI error output ("matched:
-// github-pat") so an operator can identify the family without seeing
-// the actual matched bytes (echoing the bytes widens the blast radius
-// per the secret-scan workflow's recovery prose).
-type Pattern struct {
-	// Name is a short kebab-case identifier (e.g. "github-pat",
-	// "anthropic-api-key"). Stable across versions — consumers may
-	// switch on it.
-	Name string
-	// Description is a one-line human-readable explanation of what
-	// the pattern matches. Used in CI error messages and the Files
-	// API "<denied: secret-shape>" placeholder rationale.
-	Description string
-	// regexSource is the regex literal in Go-RE2 syntax. Stored as a
-	// string so the slice declaration below stays readable; compiled
-	// once via sync.Once into a *regexp.Regexp.
-	regexSource string
-}
-
-// Patterns is the canonical credential-shape regex set.
-//
-// Adding a pattern here:
-//
-//  1. Add a new Pattern{} entry below with a kebab-case Name, a
-//     one-line Description, and the regex literal. Anchor on a
-//     low-false-positive prefix.
-//  2. Add a positive + negative test case in patterns_test.go.
-//  3. Mirror the regex string into:
-//     a. .gitea/workflows/secret-scan.yml SECRET_PATTERNS array
-//     b. molecule-ai-workspace-runtime/molecule_runtime/scripts/pre-commit-checks.sh
-//     (or wait for the codegen target that consumes this slice — TBD
-//     follow-up; tracked in the Phase 2a PR description.)
-//
-// The order is: alphabetical within each provider family, families
-// grouped by ecosystem (GitHub family, AI-provider family, chat
-// family, cloud family). Keep this stable so diffs are reviewable.
-var Patterns = []Pattern{
-	// --- GitHub token family ---
-	{
-		Name:        "github-pat-classic",
-		Description: "GitHub personal access token (classic)",
-		regexSource: `ghp_[A-Za-z0-9]{36,}`,
-	},
-	{
-		Name:        "github-app-installation-token",
-		Description: "GitHub App installation token (#2090 vector)",
-		regexSource: `ghs_[A-Za-z0-9]{36,}`,
-	},
-	{
-		Name:        "github-oauth-user-to-server",
-		Description: "GitHub OAuth user-to-server token",
-		regexSource: `gho_[A-Za-z0-9]{36,}`,
-	},
-	{
-		Name:        "github-oauth-user",
-		Description: "GitHub OAuth user token",
-		regexSource: `ghu_[A-Za-z0-9]{36,}`,
-	},
-	{
-		Name:        "github-oauth-refresh",
-		Description: "GitHub OAuth refresh token",
-		regexSource: `ghr_[A-Za-z0-9]{36,}`,
-	},
-	{
-		Name:        "github-pat-fine-grained",
-		Description: "GitHub fine-grained personal access token",
-		regexSource: `github_pat_[A-Za-z0-9_]{82,}`,
-	},
-
-	// --- AI-provider API key family ---
-	{
-		Name:        "anthropic-api-key",
-		Description: "Anthropic API key",
-		regexSource: `sk-ant-[A-Za-z0-9_-]{40,}`,
-	},
-	{
-		Name:        "openai-project-key",
-		Description: "OpenAI project API key",
-		regexSource: `sk-proj-[A-Za-z0-9_-]{40,}`,
-	},
-	{
-		Name:        "openai-service-account-key",
-		Description: "OpenAI service-account API key",
-		regexSource: `sk-svcacct-[A-Za-z0-9_-]{40,}`,
-	},
-	{
-		Name:        "minimax-api-key",
-		Description: "MiniMax API key (F1088 vector)",
-		regexSource: `sk-cp-[A-Za-z0-9_-]{60,}`,
-	},
-
-	// --- Chat-platform token family ---
-	{
-		Name:        "slack-token",
-		Description: "Slack token (xoxb/xoxa/xoxp/xoxr/xoxs)",
-		regexSource: `xox[baprs]-[A-Za-z0-9-]{20,}`,
-	},
-
-	// --- Cloud-provider credential family ---
-	{
-		Name:        "aws-access-key-id",
-		Description: "AWS access key ID",
-		regexSource: `AKIA[0-9A-Z]{16}`,
-	},
-	{
-		Name:        "aws-sts-temp-access-key-id",
-		Description: "AWS STS temporary access key ID",
-		regexSource: `ASIA[0-9A-Z]{16}`,
-	},
-}
-
-// compiledOnce protects the lazy build of compiledPatterns. We compile
-// lazily so package init is cheap; callers pay only on first match
-// (typically once per workspace-server boot).
-var (
-	compiledOnce     sync.Once
-	compiledPatterns []*compiledPattern
-	compileErr       error
-)
-
-type compiledPattern struct {
-	Name        string
-	Description string
-	Re          *regexp.Regexp
-}
-
-// compileAll compiles every Pattern.regexSource into a *regexp.Regexp.
-// Called once via compiledOnce. Any compile failure here is a build
-// bug (the unit tests assert each regex compiles) — surfacing via
-// returned error so callers don't panic in request handling.
-func compileAll() {
-	out := make([]*compiledPattern, 0, len(Patterns))
-	for _, p := range Patterns {
-		re, err := regexp.Compile(p.regexSource)
-		if err != nil {
-			compileErr = fmt.Errorf("secrets: pattern %q failed to compile: %w", p.Name, err)
-			return
-		}
-		out = append(out, &compiledPattern{Name: p.Name, Description: p.Description, Re: re})
-	}
-	compiledPatterns = out
-}
-
-// ScanBytes returns a non-nil Match if any pattern matches anywhere
-// inside b. Returns (nil, nil) on no match. Returns (nil, err) only
-// if a regex in the package fails to compile — that's a build bug,
-// not a runtime data issue.
-//
-// Match contains the pattern Name + Description so the caller can
-// emit a path-or-content-denial rationale WITHOUT round-tripping the
-// matched bytes (which would defeat the purpose). The matched bytes
-// stay inside this function.
-//
-// The Files API Phase 2b backend will call ScanBytes on:
-//
-//   - the absolute path string (catches a file literally named
-//     `ghs_abc.txt`)
-//   - the file content (catches a credential pasted into a workspace
-//     file by an agent or user — the Files API refuses to surface it
-//     and the canvas renders "<denied: secret-shape>")
-//
-// Ordering: patterns are tried in declaration order. First match
-// wins. This means narrower patterns (e.g. `sk-svcacct-…`) should
-// appear in `Patterns` before broader ones (`sk-…`) — today there's
-// no overlap, so order is descriptive only.
-func ScanBytes(b []byte) (*Match, error) {
-	compiledOnce.Do(compileAll)
-	if compileErr != nil {
-		return nil, compileErr
-	}
-	for _, cp := range compiledPatterns {
-		if cp.Re.Match(b) {
-			return &Match{Name: cp.Name, Description: cp.Description}, nil
-		}
-	}
-	return nil, nil
-}
-
-// ScanString is the string-input convenience wrapper around ScanBytes.
-// Identical semantics — the body never copies, []byte(s) is a
-// zero-copy reinterpret for the regex matcher.
-func ScanString(s string) (*Match, error) {
-	return ScanBytes([]byte(s))
-}
-
-// Match describes which pattern caught a value. Deliberately does
-// NOT include the matched substring — callers must not echo it.
-type Match struct {
-	// Name is the pattern's kebab-case identifier (e.g. "github-pat-classic").
-	Name string
-	// Description is the human-readable line for UI / log surfaces.
-	Description string
-}

workspace-server/internal/secrets/patterns_test.go

@@ -1,189 +0,0 @@
-package secrets
-
-import (
-	"strings"
-	"testing"
-)
-
-// TestEveryPatternCompiles pins that every Pattern.regexSource is a
-// valid Go-RE2 expression. Without this, a bad regex would silently
-// disable ScanBytes for everything after it (the lazy compile would
-// set compileErr and ScanBytes would return that error every call).
-func TestEveryPatternCompiles(t *testing.T) {
-	for _, p := range Patterns {
-		if p.Name == "" {
-			t.Errorf("pattern with empty Name: regex=%q", p.regexSource)
-		}
-		if p.Description == "" {
-			t.Errorf("pattern %q has empty Description", p.Name)
-		}
-	}
-	// Force compile + check error.
-	if _, err := ScanBytes([]byte("placeholder")); err != nil {
-		t.Fatalf("ScanBytes init failed: %v", err)
-	}
-}
-
-// TestNoDuplicateNames — a duplicate pattern Name would make the
-// "first match wins" semantics surprising to readers and any caller
-// switching on Match.Name (none today but adding the guard is cheap).
-func TestNoDuplicateNames(t *testing.T) {
-	seen := map[string]bool{}
-	for _, p := range Patterns {
-		if seen[p.Name] {
-			t.Errorf("duplicate pattern Name: %q", p.Name)
-		}
-		seen[p.Name] = true
-	}
-}
-
-// TestKnownPatternsAllPresent — pins which specific Name values are
-// expected. A future refactor that renames or removes one without
-// updating consumers (CI workflow, runtime pre-commit hook, Files
-// API Phase 2b backend) would silently widen the leak surface.
-// Failing here forces the rename to be intentional.
-func TestKnownPatternsAllPresent(t *testing.T) {
-	expected := []string{
-		"github-pat-classic",
-		"github-app-installation-token",
-		"github-oauth-user-to-server",
-		"github-oauth-user",
-		"github-oauth-refresh",
-		"github-pat-fine-grained",
-		"anthropic-api-key",
-		"openai-project-key",
-		"openai-service-account-key",
-		"minimax-api-key",
-		"slack-token",
-		"aws-access-key-id",
-		"aws-sts-temp-access-key-id",
-	}
-	got := map[string]bool{}
-	for _, p := range Patterns {
-		got[p.Name] = true
-	}
-	for _, want := range expected {
-		if !got[want] {
-			t.Errorf("expected pattern %q missing from Patterns slice", want)
-		}
-	}
-}
-
-// TestPositiveMatches — for each pattern, supply a representative
-// shape and assert ScanBytes returns a Match with the right Name.
-// These are TEST FIXTURES, not real credentials — each is the
-// pattern's prefix + a long-enough trailing run of placeholder chars.
-// `EXAMPLE` is sprinkled in to make grep-finds in CI logs obviously
-// fake to a human reader (matches saved memory
-// feedback_assert_exact_not_substring: tighten by Name not body).
-func TestPositiveMatches(t *testing.T) {
-	cases := []struct {
-		fixture      string
-		expectedName string
-	}{
-		{"ghp_EXAMPLE111122223333444455556666777788889999", "github-pat-classic"},
-		{"ghs_EXAMPLE111122223333444455556666777788889999", "github-app-installation-token"},
-		{"gho_EXAMPLE111122223333444455556666777788889999", "github-oauth-user-to-server"},
-		{"ghu_EXAMPLE111122223333444455556666777788889999", "github-oauth-user"},
-		{"ghr_EXAMPLE111122223333444455556666777788889999", "github-oauth-refresh"},
-		{"github_pat_EXAMPLE" + strings.Repeat("1", 80), "github-pat-fine-grained"},
-		{"sk-ant-EXAMPLE" + strings.Repeat("1", 40), "anthropic-api-key"},
-		{"sk-proj-EXAMPLE" + strings.Repeat("1", 40), "openai-project-key"},
-		{"sk-svcacct-EXAMPLE" + strings.Repeat("1", 40), "openai-service-account-key"},
-		{"sk-cp-EXAMPLE" + strings.Repeat("1", 60), "minimax-api-key"},
-		{"xoxb-" + strings.Repeat("a", 25), "slack-token"},
-		{"xoxa-" + strings.Repeat("a", 25), "slack-token"},
-		// AWS regex requires [0-9A-Z]{16} — uppercase + digits only.
-		{"AKIA1234567890ABCDEF", "aws-access-key-id"},
-		{"ASIA1234567890ABCDEF", "aws-sts-temp-access-key-id"},
-	}
-	for _, tc := range cases {
-		t.Run(tc.expectedName, func(t *testing.T) {
-			m, err := ScanBytes([]byte(tc.fixture))
-			if err != nil {
-				t.Fatalf("ScanBytes(%q) errored: %v", tc.fixture, err)
-			}
-			if m == nil {
-				t.Fatalf("ScanBytes(%q) returned no match — expected %q", tc.fixture, tc.expectedName)
-			}
-			if m.Name != tc.expectedName {
-				t.Errorf("ScanBytes(%q) matched %q; expected %q", tc.fixture, m.Name, tc.expectedName)
-			}
-		})
-	}
-}
-
-// TestNegativeShapes — strings that look credential-adjacent but
-// shouldn't match (too short, wrong prefix, missing trailing bytes).
-// Failing here means a pattern is too loose, which would generate
-// false-positive denial in Files API and false-positive workflow
-// failures in CI.
-func TestNegativeShapes(t *testing.T) {
-	cases := []string{
-		// Too-short variants — anchored on the length suffix.
-		"ghp_tooshort",
-		"ghs_alsoshort1234",
-		"github_pat_short",
-		"sk-ant-short",
-		"sk-cp-not-enough-bytes-here",
-		// Looks like one of the prefixes but isn't (different letter).
-		"gha_EXAMPLE_thirty_six_or_more_chars_here_xxx",
-		// Slack family — wrong letter after xox.
-		"xoxz-aaaaaaaaaaaaaaaaaaaaaaaaa",
-		// AWS-shaped but wrong length suffix.
-		"AKIATOOSHORT",
-		// Empty / whitespace.
-		"",
-		"   ",
-		// Plain prose mentioning the prefix as part of a longer word.
-		"see also `ghp_HOWTO.md` in the repo",
-	}
-	for _, c := range cases {
-		t.Run(c, func(t *testing.T) {
-			m, err := ScanBytes([]byte(c))
-			if err != nil {
-				t.Fatalf("ScanBytes(%q) errored: %v", c, err)
-			}
-			if m != nil {
-				t.Errorf("ScanBytes(%q) unexpectedly matched %q", c, m.Name)
-			}
-		})
-	}
-}
-
-// TestScanString_NoOp — sanity-check ScanString is the zero-copy
-// wrapper around ScanBytes. Without this, a future refactor that
-// makes ScanString do its own thing (e.g. accidentally normalise
-// case) would diverge silently.
-func TestScanString_NoOp(t *testing.T) {
-	in := "ghp_EXAMPLE111122223333444455556666777788889999"
-	m1, err1 := ScanBytes([]byte(in))
-	if err1 != nil {
-		t.Fatalf("ScanBytes errored: %v", err1)
-	}
-	m2, err2 := ScanString(in)
-	if err2 != nil {
-		t.Fatalf("ScanString errored: %v", err2)
-	}
-	if m1 == nil || m2 == nil {
-		t.Fatalf("expected matches; got bytes=%+v string=%+v", m1, m2)
-	}
-	if m1.Name != m2.Name {
-		t.Errorf("ScanString and ScanBytes returned different Names: %q vs %q", m1.Name, m2.Name)
-	}
-}
-
-// TestMatch_NoRoundtrip — assert the Match struct does NOT include
-// the matched substring as a field. Adding such a field would
-// regress the "matched bytes never leave ScanBytes" invariant that
-// makes this package safe to call from log/UI surfaces. This is a
-// reflection-light contract test — checks the field names statically.
-func TestMatch_NoRoundtrip(t *testing.T) {
-	var m Match
-	// If someone adds a `Matched string` (or similar) field, this
-	// test reads as the canonical place to update + reconsider.
-	_ = m.Name
-	_ = m.Description
-	// The two-field shape is part of the public contract; new fields
-	// require deliberation about whether they leak the secret value.
-}

workspace-server/migrations/20260514120000_workspace_abilities.down.sql

@@ -1,3 +0,0 @@
-ALTER TABLE workspaces
-    DROP COLUMN IF EXISTS broadcast_enabled,
-    DROP COLUMN IF EXISTS talk_to_user_enabled;

workspace-server/migrations/20260514120000_workspace_abilities.up.sql

@@ -1,16 +0,0 @@
--- Workspace abilities: opt-in flags that gate platform-level behaviours.
---
--- broadcast_enabled (default FALSE): when TRUE the workspace may call
---   POST /workspaces/:id/broadcast to send a message to every non-removed
---   agent workspace in the org. Off by default — only privileged
---   orchestrator workspaces should hold this ability.
---
--- talk_to_user_enabled (default TRUE): when FALSE the workspace is not
---   allowed to deliver messages to the canvas user via send_message_to_user /
---   POST /notify. The platform returns HTTP 403 so the agent can forward its
---   update to a parent workspace instead. Default TRUE preserves existing
---   behaviour for all current workspaces.
-
-ALTER TABLE workspaces
-    ADD COLUMN IF NOT EXISTS broadcast_enabled    BOOLEAN NOT NULL DEFAULT FALSE,
-    ADD COLUMN IF NOT EXISTS talk_to_user_enabled BOOLEAN NOT NULL DEFAULT TRUE;

workspace/_sanitize_a2a.py

@@ -40,8 +40,6 @@ _A2A_BOUNDARY_END = "[/A2A_RESULT_FROM_PEER]"
 # inside the trusted zone. Escape BOTH boundary markers in the raw text
 # before wrapping so they can never close the boundary early.
 # We use "[/ " as the escape prefix — visually distinct from the real marker.
-_A2A_BOUNDARY_START_ESCAPED = "[/ A2A_RESULT_FROM_PEER]"
-_A2A_BOUNDARY_END_ESCAPED = "[/ /A2A_RESULT_FROM_PEER]"
 
 
 def _escape_boundary_markers(text: str) -> str:
@@ -52,8 +50,8 @@ def _escape_boundary_markers(text: str) -> str:
     the boundary early or inject a fake opener.
     """
     return (
-        text.replace(_A2A_BOUNDARY_START, _A2A_BOUNDARY_START_ESCAPED)
-        .replace(_A2A_BOUNDARY_END, _A2A_BOUNDARY_END_ESCAPED)
+        text.replace(_A2A_BOUNDARY_START, "[/ A2A_RESULT_FROM_PEER]")
+        .replace(_A2A_BOUNDARY_END, "[/ /A2A_RESULT_FROM_PEER]")
     )
 
 

workspace/a2a_mcp_server.py

@@ -29,20 +29,17 @@ from typing import Callable
 import inbox
 
 from a2a_tools import (
-    tool_broadcast_message,
     tool_chat_history,
     tool_check_task_status,
     tool_commit_memory,
     tool_delegate_task,
     tool_delegate_task_async,
-    tool_get_runtime_identity,
     tool_get_workspace_info,
     tool_inbox_peek,
     tool_inbox_pop,
     tool_list_peers,
     tool_recall_memory,
     tool_send_message_to_user,
-    tool_update_agent_card,
     tool_wait_for_message,
 )
 from platform_tools.registry import TOOLS as _PLATFORM_TOOL_SPECS
@@ -132,10 +129,6 @@ async def handle_tool_call(name: str, arguments: dict) -> str:
         return await tool_get_workspace_info(
             source_workspace_id=arguments.get("source_workspace_id") or None,
         )
-    elif name == "get_runtime_identity":
-        return await tool_get_runtime_identity()
-    elif name == "update_agent_card":
-        return await tool_update_agent_card(arguments.get("card"))
     elif name == "commit_memory":
         return await tool_commit_memory(
             arguments.get("content", ""),
@@ -167,11 +160,6 @@ async def handle_tool_call(name: str, arguments: dict) -> str:
             arguments.get("before_ts", ""),
             source_workspace_id=arguments.get("source_workspace_id") or None,
         )
-    elif name == "broadcast_message":
-        return await tool_broadcast_message(
-            arguments.get("message", ""),
-            workspace_id=arguments.get("workspace_id") or None,
-        )
     return f"Unknown tool: {name}"
 
 
@@ -698,8 +686,8 @@ def _format_channel_content(
 # --- MCP Server (JSON-RPC over stdio) ---
 
 
-def _warn_if_stdio_not_pipe(stdin_fd: int = 0, stdout_fd: int = 1) -> None:
-    """Warn when stdio isn't a pipe — but continue anyway.
+def _assert_stdio_is_pipe_compatible(stdin_fd: int = 0, stdout_fd: int = 1) -> None:
+    """Assert that stdio fds are pipe/socket/char-device compatible.
 
     The legacy asyncio.connect_read_pipe / connect_write_pipe transport
     rejected regular files, PTYs, and sockets with:
@@ -723,6 +711,10 @@ def _warn_if_stdio_not_pipe(stdin_fd: int = 0, stdout_fd: int = 1) -> None:
             )
 
 
+# Deprecated alias — the canonical name is _assert_stdio_is_pipe_compatible.
+_warn_if_stdio_not_pipe = _assert_stdio_is_pipe_compatible
+
+
 async def main():  # pragma: no cover
     """Run MCP server on stdio — reads JSON-RPC requests, writes responses.
 
@@ -979,7 +971,7 @@ def cli_main(transport: str = "stdio", port: int = 9100) -> None:  # pragma: no
     if transport == "http":
         asyncio.run(_run_http_server(port))
     else:
-        _warn_if_stdio_not_pipe()
+        _assert_stdio_is_pipe_compatible()
         asyncio.run(main())
 
 

workspace/a2a_tools.py

@@ -137,7 +137,6 @@ from a2a_tools_delegation import (  # noqa: E402  (import after the from-a2a_cli
 # identically.
 from a2a_tools_messaging import (  # noqa: E402  (import after the top-of-module imports)
     _upload_chat_files,
-    tool_broadcast_message,
     tool_chat_history,
     tool_get_workspace_info,
     tool_list_peers,
@@ -167,15 +166,3 @@ from a2a_tools_inbox import (  # noqa: E402  (import after the top-of-module imp
     tool_inbox_pop,
     tool_wait_for_message,
 )
-
-
-# Identity tool handlers — extracted to a2a_tools_identity. Ports the
-# two T4-tier MCP tools (``tool_get_runtime_identity`` +
-# ``tool_update_agent_card``) from molecule-ai-workspace-runtime PR#17.
-# That repo is mirror-only (reference_runtime_repo_is_mirror_only);
-# this is the canonical edit point, and the wheel mirror is
-# regenerated by publish-runtime.yml on merge.
-from a2a_tools_identity import (  # noqa: E402  (import after the top-of-module imports)
-    tool_get_runtime_identity,
-    tool_update_agent_card,
-)

workspace/a2a_tools_delegation.py

@@ -49,9 +49,7 @@ from a2a_client import (
 from a2a_tools_rbac import auth_headers_for_heartbeat as _auth_headers_for_heartbeat
 from _sanitize_a2a import (
     _A2A_BOUNDARY_END,
-    _A2A_BOUNDARY_END_ESCAPED,
     _A2A_BOUNDARY_START,
-    _A2A_BOUNDARY_START_ESCAPED,
     sanitize_a2a_result,
 )  # noqa: E402
 
@@ -332,18 +330,8 @@ async def tool_delegate_task(
     # markers so the agent can distinguish trusted (own output) from untrusted
     # (peer-supplied) content.  Explicit wrapping here rather than inside
     # sanitize_a2a_result preserves a clean separation of concerns.
-    #
-    # Truncate at the closer BEFORE sanitizing so the raw closer (which gets
-    # lost during escaping) is removed from the content.  After truncation,
-    # sanitize the remaining text and wrap with escaped boundary markers.
-    if _A2A_BOUNDARY_END in result:
-        result = result[:result.index(_A2A_BOUNDARY_END)]
     escaped = sanitize_a2a_result(result)
-    return (
-        f"{_A2A_BOUNDARY_START_ESCAPED}\n"
-        f"{escaped}\n"
-        f"{_A2A_BOUNDARY_END_ESCAPED}"
-    )
+    return f"{_A2A_BOUNDARY_START}\n{escaped}\n{_A2A_BOUNDARY_END}"
 
 
 async def tool_delegate_task_async(

workspace/a2a_tools_identity.py

@@ -1,187 +0,0 @@
-"""Identity tool handlers — single-concern slice of the a2a_tools surface.
-
-Owns the two MCP tools that close the T4-tier workspace owner-permission
-gaps reported via the canvas:
-
-  * ``tool_get_runtime_identity`` — env-only; returns model, model_provider,
-    molecule_model, anthropic_base_url, tier, workspace_id, runtime
-    (ADAPTER_MODULE). No HTTP call. Always permitted by RBAC — even
-    read-only agents may know what model they are.
-
-  * ``tool_update_agent_card`` — POSTs the card to ``/registry/update-card``
-    with the workspace's own bearer (same auth path as ``tool_commit_memory``
-    via ``a2a_tools_rbac.auth_headers_for_heartbeat``). The platform
-    replaces the stored card and broadcasts an ``agent_card_updated``
-    event so the canvas reflects the new card live. Gated on
-    ``memory.write`` capability via the existing RBAC permission map so
-    read-only roles can't silently rewrite the platform card.
-
-Both originated as a port of molecule-ai-workspace-runtime PR#17
-(``feat(mcp): add update_agent_card + get_runtime_identity tools``).
-The mirror-only PR#17 was closed without merge per
-``reference_runtime_repo_is_mirror_only``; the canonical edit point is
-this monorepo at ``workspace/`` and the wheel mirror is regenerated
-automatically by the publish-runtime workflow.
-
-Imports the auth-header primitive from ``a2a_tools_rbac`` (iter 4a) —
-NOT from ``a2a_tools`` — to avoid a circular import with the
-kitchen-sink re-export module.
-"""
-from __future__ import annotations
-
-import json
-import os
-from typing import Any
-
-import httpx
-
-from a2a_client import PLATFORM_URL
-from a2a_tools_rbac import (
-    auth_headers_for_heartbeat as _auth_headers_for_heartbeat,
-    check_memory_write_permission as _check_memory_write_permission,
-)
-
-
-def _runtime_identity_payload() -> dict[str, Any]:
-    """Build the identity dict — env-only, no I/O.
-
-    Factored out from ``tool_get_runtime_identity`` so tests can assert
-    against the exact key set without re-parsing JSON. The MCP tool
-    handler ``tool_get_runtime_identity`` is the only public caller in
-    production; tests call this helper directly.
-    """
-    return {
-        "model": os.environ.get("MODEL", ""),
-        "model_provider": os.environ.get("MODEL_PROVIDER", ""),
-        "molecule_model": os.environ.get("MOLECULE_MODEL", ""),
-        "anthropic_base_url": os.environ.get("ANTHROPIC_BASE_URL", ""),
-        "tier": os.environ.get("TIER", ""),
-        "workspace_id": os.environ.get("WORKSPACE_ID", ""),
-        # Adapter module is the closest thing the runtime has to a
-        # "template slug" — e.g. "adapter" for claude-code-default,
-        # "hermes" for hermes-template, etc. Picked from
-        # $ADAPTER_MODULE env baked by each template's Dockerfile.
-        "runtime": os.environ.get("ADAPTER_MODULE", ""),
-    }
-
-
-async def tool_get_runtime_identity() -> str:
-    """Return this runtime's identity — model, provider, tier, IDs.
-
-    Env-only; no HTTP call. Useful so the agent can answer "what model
-    am I?" correctly instead of guessing from a stale system prompt
-    that the operator may have changed between boots.
-
-    Returns the identity as a JSON-encoded string (the dispatch contract
-    every MCP tool in this module follows). Tests that want to assert
-    individual fields can call ``_runtime_identity_payload()`` directly,
-    or ``json.loads`` the return value.
-
-    Always permitted by RBAC — there is no sensitive information here
-    that isn't already available to the process via ``os.environ``.
-    The point of the tool is to surface those env values to the agent
-    layer in a stable, documented shape rather than expecting every
-    agent runtime to know to ``echo $MODEL``.
-    """
-    return json.dumps(_runtime_identity_payload(), indent=2)
-
-
-async def tool_update_agent_card(card: Any) -> str:
-    """Update this workspace's agent_card on the platform.
-
-    POSTs the provided card to ``/registry/update-card`` with the
-    workspace's own bearer token (same auth path as ``tool_commit_memory``
-    and ``tool_get_workspace_info``). The platform validates required
-    fields server-side, replaces the stored card, and broadcasts an
-    ``agent_card_updated`` event so the canvas updates live.
-
-    Args:
-        card: A JSON-serialisable object (typically a dict) holding the
-            new card. The platform validates required fields server-side.
-
-    Returns:
-        JSON-encoded string. Body:
-          - ``{"success": true, "status": "updated"}`` on success;
-          - ``{"success": false, "error": "<msg>", "status_code": <int>}``
-            on platform error;
-          - ``{"success": false, "error": "<reason>"}`` on local validation
-            (non-dict card, missing WORKSPACE_ID, network error).
-
-    Permission gate: this tool requires the ``memory.write`` RBAC
-    capability — same gate as ``tool_commit_memory``. The check runs
-    inline rather than at the dispatcher layer to keep ``a2a_mcp_server``
-    permission-agnostic (the gate sits with the implementation, not the
-    transport). Read-only roles get a clear error string back instead
-    of a 403 from the platform.
-
-    We re-check ``isinstance(card, dict)`` here defensively rather than
-    trust the MCP schema validator alone — the schema only constrains
-    the transport, not the in-process call surface used by tests and
-    sibling modules.
-    """
-    payload = await _update_agent_card_impl(card)
-    return json.dumps(payload, indent=2)
-
-
-async def _update_agent_card_impl(card: Any) -> dict[str, Any]:
-    """Dict-returning core of ``tool_update_agent_card``.
-
-    Split out so tests can assert against the raw dict shape (status
-    codes, error messages) without re-parsing JSON on every assertion.
-    The string-returning ``tool_update_agent_card`` is a thin wrapper
-    invoked by the MCP dispatcher.
-    """
-    # RBAC: require memory.write permission. Same gate as
-    # tool_commit_memory (the agent already needs this capability to
-    # persist anything outbound). Read-only roles can still call
-    # get_runtime_identity / get_workspace_info to introspect — those
-    # are env-only / read-only and have no inline gate.
-    if not _check_memory_write_permission():
-        return {
-            "success": False,
-            "error": (
-                "RBAC — this workspace does not have the 'memory.write' "
-                "permission required to update the agent_card."
-            ),
-        }
-    if not isinstance(card, dict):
-        return {
-            "success": False,
-            "error": "card must be a JSON object (dict)",
-        }
-    ws_id = os.environ.get("WORKSPACE_ID", "")
-    if not ws_id:
-        return {
-            "success": False,
-            "error": "WORKSPACE_ID env not set; cannot identify caller",
-        }
-    try:
-        async with httpx.AsyncClient(timeout=10.0) as client:
-            resp = await client.post(
-                f"{PLATFORM_URL}/registry/update-card",
-                json={"workspace_id": ws_id, "agent_card": card},
-                headers=_auth_headers_for_heartbeat(),
-            )
-            if resp.status_code == 200:
-                body: dict[str, Any] = {}
-                try:
-                    body = resp.json()
-                except Exception:
-                    pass
-                return {
-                    "success": True,
-                    "status": body.get("status", "updated"),
-                }
-            # Non-200 — surface what the platform returned.
-            error_msg = ""
-            try:
-                error_msg = resp.json().get("error", "") or resp.text
-            except Exception:
-                error_msg = resp.text
-            return {
-                "success": False,
-                "status_code": resp.status_code,
-                "error": error_msg,
-            }
-    except Exception as e:
-        return {"success": False, "error": f"network error: {e}"}

workspace/a2a_tools_messaging.py

@@ -101,50 +101,6 @@ async def _upload_chat_files(
     return uploaded, None
 
 
-async def tool_broadcast_message(
-    message: str,
-    workspace_id: str | None = None,
-) -> str:
-    """Send a broadcast message to ALL agent workspaces in the org.
-
-    Requires the workspace to have broadcast_enabled=true (set by a user or
-    admin via PATCH /workspaces/:id/abilities). Use for urgent org-wide
-    signals — status changes, critical alerts, coordination instructions.
-    Every non-removed workspace receives the message in its activity log so
-    poll-mode agents pick it up, and push-mode canvases get a real-time
-    BROADCAST_MESSAGE WebSocket event.
-
-    Args:
-        message: The broadcast text. Keep it concise — all agents receive
-            this, so avoid lengthy prose that floods every context.
-        workspace_id: Optional. Which registered workspace to send the
-            broadcast from. Single-workspace agents omit this.
-    """
-    if not message:
-        return "Error: message is required"
-    target_workspace_id = (workspace_id or "").strip() or WORKSPACE_ID
-    try:
-        async with httpx.AsyncClient(timeout=30.0) as client:
-            resp = await client.post(
-                f"{PLATFORM_URL}/workspaces/{target_workspace_id}/broadcast",
-                json={"message": message},
-                headers=_auth_headers_for_heartbeat(target_workspace_id),
-            )
-            if resp.status_code == 200:
-                data = resp.json()
-                delivered = data.get("delivered", "?")
-                return f"Broadcast sent to {delivered} workspace(s)"
-            if resp.status_code == 403:
-                try:
-                    hint = resp.json().get("hint", "")
-                except Exception:
-                    hint = ""
-                return f"Error: broadcast ability not enabled.{(' ' + hint) if hint else ''}"
-            return f"Error: platform returned {resp.status_code}"
-    except Exception as e:
-        return f"Error sending broadcast: {e}"
-
-
 async def tool_send_message_to_user(
     message: str,
     attachments: list[str] | None = None,
@@ -195,20 +151,6 @@ async def tool_send_message_to_user(
                 if uploaded:
                     return f"Message sent to user with {len(uploaded)} attachment(s)"
                 return "Message sent to user"
-            if resp.status_code == 403:
-                try:
-                    body = resp.json()
-                    if body.get("error") == "talk_to_user_disabled":
-                        hint = body.get("hint", "")
-                        return (
-                            "Error: this workspace is not allowed to send messages "
-                            "directly to the user (talk_to_user is disabled). "
-                            + (hint + " " if hint else "")
-                            + "Use delegate_task to forward your update to a parent "
-                            "or supervisor workspace that can reach the user."
-                        )
-                except Exception:
-                    pass
             return f"Error: platform returned {resp.status_code}"
     except Exception as e:
         return f"Error sending message: {e}"

workspace/adapter_base.py

@@ -3,57 +3,9 @@
 import logging
 import os
 from abc import ABC, abstractmethod
-from collections.abc import Mapping
 from dataclasses import dataclass, field
 from typing import Any
 
-# ---------------------------------------------------------------------------
-# Provider routing — type alias + resolver used by individual adapters.
-# Each adapter defines its own ProviderRegistry with the providers it accepts.
-# ---------------------------------------------------------------------------
-
-# Maps prefix → (ordered_auth_env_vars, default_base_url).
-ProviderRegistry = dict[str, tuple[tuple[str, ...], str]]
-
-
-def resolve_provider_routing(
-    model_str: str,
-    env: Mapping[str, str],
-    *,
-    registry: ProviderRegistry,
-    runtime_config: dict[str, Any] | None = None,
-) -> tuple[str, str, str]:
-    """Resolve a ``provider:model`` string to ``(api_key, base_url, bare_model_id)``.
-
-    URL precedence (highest to lowest):
-      1. ``<PREFIX>_BASE_URL`` env var
-      2. ``runtime_config["provider_url"]``
-      3. registry default for the prefix
-
-    Unknown prefixes fall back to OPENAI_API_KEY + api.openai.com.
-    Raises RuntimeError when no API key env var is set for the prefix.
-    """
-    if ":" in model_str:
-        prefix, model_id = model_str.split(":", 1)
-    else:
-        prefix, model_id = "openai", model_str
-
-    env_vars, default_url = registry.get(
-        prefix, (("OPENAI_API_KEY",), "https://api.openai.com/v1")
-    )
-    api_key = next((env[v] for v in env_vars if env.get(v)), "")
-    if not api_key:
-        raise RuntimeError(
-            f"No API key found for provider {prefix!r} "
-            f"(checked: {', '.join(env_vars)}). Set one in workspace secrets."
-        )
-
-    env_url = env.get(f"{prefix.upper()}_BASE_URL", "")
-    config_url = (runtime_config or {}).get("provider_url", "")
-    base_url = env_url or config_url or default_url
-
-    return api_key, base_url, model_id
-
 from a2a.server.agent_execution import AgentExecutor
 
 from event_log import DisabledEventLog, EventLogBackend

workspace/executor_helpers.py

@@ -340,20 +340,6 @@ _CLI_A2A_COMMAND_KEYWORDS: dict[str, str | None] = {
     "delegate_task_async": "delegate --async",
     "check_task_status": "status",
     "get_workspace_info": "info",
-    # `get_runtime_identity` + `update_agent_card` are MCP-first
-    # capabilities — the CLI subprocess interface doesn't expose them
-    # today. `get_runtime_identity` is env-only and an agent on a
-    # CLI-only runtime can already `echo $MODEL` etc, so there's no
-    # functional gap. `update_agent_card` requires a JSON object
-    # argument that wouldn't survive a positional-arg shell invocation
-    # cleanly. Mapped to None — flip to a keyword if a2a_cli grows
-    # `identity` / `card` subcommands in the future.
-    "get_runtime_identity": None,
-    "update_agent_card": None,
-    # `broadcast_message` is not exposed via the CLI subprocess interface
-    # today — it's an MCP-first capability. If a2a_cli grows a `broadcast`
-    # subcommand, map it here and the alignment test will gate the change.
-    "broadcast_message": None,
     # `send_message_to_user` is not exposed via the CLI subprocess
     # interface today — it requires a structured `attachments` field
     # that wouldn't survive a positional-arg shell invocation cleanly.

workspace/platform_tools/registry.py

@@ -51,20 +51,17 @@ from dataclasses import dataclass
 from typing import Any, Literal
 
 from a2a_tools import (
-    tool_broadcast_message,
     tool_chat_history,
     tool_check_task_status,
     tool_commit_memory,
     tool_delegate_task,
     tool_delegate_task_async,
-    tool_get_runtime_identity,
     tool_get_workspace_info,
     tool_inbox_peek,
     tool_inbox_pop,
     tool_list_peers,
     tool_recall_memory,
     tool_send_message_to_user,
-    tool_update_agent_card,
     tool_wait_for_message,
 )
 
@@ -291,99 +288,6 @@ _GET_WORKSPACE_INFO = ToolSpec(
     section=A2A_SECTION,
 )
 
-_GET_RUNTIME_IDENTITY = ToolSpec(
-    name="get_runtime_identity",
-    short=(
-        "Return this runtime's identity — model, model_provider, tier, "
-        "workspace_id, runtime template. Reads from process env; no HTTP call."
-    ),
-    when_to_use=(
-        "Use this to answer 'what model am I?' truthfully instead of "
-        "guessing from a stale system prompt — the operator may have "
-        "routed you to a different model via persona env between boots. "
-        "Always permitted by RBAC: even read-only agents may know what "
-        "model they are. Distinct from get_workspace_info — that one "
-        "calls the platform for ID/role/tier/parent (workspace metadata); "
-        "this one returns the live process env (MODEL, MODEL_PROVIDER, "
-        "MOLECULE_MODEL, ANTHROPIC_BASE_URL, TIER, WORKSPACE_ID, "
-        "ADAPTER_MODULE)."
-    ),
-    input_schema={"type": "object", "properties": {}},
-    impl=tool_get_runtime_identity,
-    section=A2A_SECTION,
-)
-
-_UPDATE_AGENT_CARD = ToolSpec(
-    name="update_agent_card",
-    short=(
-        "Replace this workspace's agent_card on the platform. The "
-        "platform validates required fields and broadcasts an "
-        "agent_card_updated event so the canvas reflects the change live."
-    ),
-    when_to_use=(
-        "Use when the workspace's capabilities, skills, description, or "
-        "name change and the canvas display needs to follow. The "
-        "platform stores the new card and pushes an "
-        "``agent_card_updated`` event to subscribers. Gated behind the "
-        "``memory.write`` RBAC capability — read-only roles cannot "
-        "rewrite the card. Tier-1+ owners always have this capability."
-    ),
-    input_schema={
-        "type": "object",
-        "properties": {
-            "card": {
-                "type": "object",
-                "description": (
-                    "The new agent_card object (name, version, "
-                    "description, skills, etc). Server-side validation "
-                    "rejects payloads missing required fields."
-                ),
-            },
-        },
-        "required": ["card"],
-    },
-    impl=tool_update_agent_card,
-    section=A2A_SECTION,
-)
-
-_BROADCAST_MESSAGE = ToolSpec(
-    name="broadcast_message",
-    short=(
-        "Send a message to ALL agent workspaces in the org simultaneously. "
-        "Requires broadcast_enabled=true on this workspace (set by user/admin)."
-    ),
-    when_to_use=(
-        "Use for urgent, org-wide signals: critical status changes, emergency "
-        "stop instructions, coordinated task announcements. Every non-removed "
-        "workspace receives the message in its activity log (poll-mode agents "
-        "see it on their next poll; push-mode canvases get a real-time banner). "
-        "This tool returns an error if broadcast_enabled is false — a user or "
-        "admin must enable it via the workspace abilities settings first."
-    ),
-    input_schema={
-        "type": "object",
-        "properties": {
-            "message": {
-                "type": "string",
-                "description": (
-                    "The broadcast text. Keep it concise — every agent in the "
-                    "org receives this in their activity feed."
-                ),
-            },
-            "workspace_id": {
-                "type": "string",
-                "description": (
-                    "Optional. Multi-workspace mode: the registered workspace "
-                    "to broadcast from. Single-workspace agents omit this."
-                ),
-            },
-        },
-        "required": ["message"],
-    },
-    impl=tool_broadcast_message,
-    section=A2A_SECTION,
-)
-
 _SEND_MESSAGE_TO_USER = ToolSpec(
     name="send_message_to_user",
     short=(
@@ -699,9 +603,6 @@ TOOLS: list[ToolSpec] = [
     _CHECK_TASK_STATUS,
     _LIST_PEERS,
     _GET_WORKSPACE_INFO,
-    _GET_RUNTIME_IDENTITY,
-    _UPDATE_AGENT_CARD,
-    _BROADCAST_MESSAGE,
     _SEND_MESSAGE_TO_USER,
     # Inbox (standalone-only; in-container returns informational error)
     _WAIT_FOR_MESSAGE,

workspace/tests/snapshots/a2a_instructions_mcp.txt

@@ -5,9 +5,6 @@
 - **check_task_status**: Poll the status of a task started with delegate_task_async; returns result when done.
 - **list_peers**: List the workspaces this agent can communicate with — name, ID, status, role for each.
 - **get_workspace_info**: Get this workspace's own info — ID, name, role, tier, parent, status.
-- **get_runtime_identity**: Return this runtime's identity — model, model_provider, tier, workspace_id, runtime template. Reads from process env; no HTTP call.
-- **update_agent_card**: Replace this workspace's agent_card on the platform. The platform validates required fields and broadcasts an agent_card_updated event so the canvas reflects the change live.
-- **broadcast_message**: Send a message to ALL agent workspaces in the org simultaneously. Requires broadcast_enabled=true on this workspace (set by user/admin).
 - **send_message_to_user**: Send a message directly to the user's canvas chat — pushed instantly via WebSocket. Use this to: (1) acknowledge a task immediately ('Got it, I'll start working on this'), (2) send interim progress updates while doing long work, (3) deliver follow-up results after delegation completes, (4) attach files (zip, pdf, csv, image) for the user to download via the `attachments` field (NEVER paste file URLs in `message`). The message appears in the user's chat as if you're proactively reaching out.
 - **wait_for_message**: Block until the next inbound message (canvas user OR peer agent) arrives, or until ``timeout_secs`` elapses.
 - **inbox_peek**: List pending inbound messages without removing them.
@@ -29,15 +26,6 @@ Call this first when you need to delegate but don't know the target's ID. Access
 ### get_workspace_info
 Use to introspect your own identity (e.g. before reporting back to the user, or to determine whether you're a tier-0 root that can write GLOBAL memory).
 
-### get_runtime_identity
-Use this to answer 'what model am I?' truthfully instead of guessing from a stale system prompt — the operator may have routed you to a different model via persona env between boots. Always permitted by RBAC: even read-only agents may know what model they are. Distinct from get_workspace_info — that one calls the platform for ID/role/tier/parent (workspace metadata); this one returns the live process env (MODEL, MODEL_PROVIDER, MOLECULE_MODEL, ANTHROPIC_BASE_URL, TIER, WORKSPACE_ID, ADAPTER_MODULE).
-
-### update_agent_card
-Use when the workspace's capabilities, skills, description, or name change and the canvas display needs to follow. The platform stores the new card and pushes an ``agent_card_updated`` event to subscribers. Gated behind the ``memory.write`` RBAC capability — read-only roles cannot rewrite the card. Tier-1+ owners always have this capability.
-
-### broadcast_message
-Use for urgent, org-wide signals: critical status changes, emergency stop instructions, coordinated task announcements. Every non-removed workspace receives the message in its activity log (poll-mode agents see it on their next poll; push-mode canvases get a real-time banner). This tool returns an error if broadcast_enabled is false — a user or admin must enable it via the workspace abilities settings first.
-
 ### send_message_to_user
 Use proactively across the lifecycle of a task — early to acknowledge, mid-flight to update, late to deliver. Never paste file URLs in the message body — always pass absolute paths in `attachments` so the platform serves them as download chips (works on SaaS where external file hosts are unreachable).
 

workspace/tests/test_a2a_mcp_server.py

@@ -1826,8 +1826,8 @@ def test_inbox_bridge_swallows_closed_loop_runtime_error():
 
 
 class TestStdioPipeAssertion:
-    """Pin _warn_if_stdio_not_pipe — the diagnostic warning that replaces
-    the old fatal _assert_stdio_is_pipe_compatible guard.
+    """Pin _assert_stdio_is_pipe_compatible — the canonical function name.
+    _warn_if_stdio_not_pipe is a deprecated alias.
 
     The universal stdio transport now works with ANY file descriptor
     (pipes, regular files, PTYs, sockets), so the old exit-2 behavior
@@ -1838,12 +1838,12 @@ class TestStdioPipeAssertion:
 
     def test_pipe_pair_passes_silently(self, caplog):
         """Happy path — both fds are pipes. No warning emitted."""
-        from a2a_mcp_server import _warn_if_stdio_not_pipe
+        from a2a_mcp_server import _assert_stdio_is_pipe_compatible
 
         r, w = os.pipe()
         try:
             with caplog.at_level("WARNING"):
-                _warn_if_stdio_not_pipe(stdin_fd=r, stdout_fd=w)
+                _assert_stdio_is_pipe_compatible(stdin_fd=r, stdout_fd=w)
             assert "not a pipe" not in caplog.text
         finally:
             os.close(r)
@@ -1852,14 +1852,14 @@ class TestStdioPipeAssertion:
     def test_regular_file_stdout_warns(self, tmp_path, caplog):
         """Reproducer for runtime#61: stdout redirected to a regular file.
         Now emits a warning instead of exiting."""
-        from a2a_mcp_server import _warn_if_stdio_not_pipe
+        from a2a_mcp_server import _assert_stdio_is_pipe_compatible
 
         r, _w = os.pipe()
         regular = tmp_path / "captured.log"
         f = open(regular, "wb")
         try:
             with caplog.at_level("WARNING"):
-                _warn_if_stdio_not_pipe(stdin_fd=r, stdout_fd=f.fileno())
+                _assert_stdio_is_pipe_compatible(stdin_fd=r, stdout_fd=f.fileno())
             assert "stdout" in caplog.text
             assert "not a pipe" in caplog.text
         finally:
@@ -1868,7 +1868,7 @@ class TestStdioPipeAssertion:
 
     def test_regular_file_stdin_warns(self, tmp_path, caplog):
         """Symmetric case — stdin redirected from a regular file."""
-        from a2a_mcp_server import _warn_if_stdio_not_pipe
+        from a2a_mcp_server import _assert_stdio_is_pipe_compatible
 
         regular = tmp_path / "input.json"
         regular.write_bytes(b'{"jsonrpc":"2.0","id":1,"method":"initialize"}\n')
@@ -1876,7 +1876,7 @@ class TestStdioPipeAssertion:
         _r, w = os.pipe()
         try:
             with caplog.at_level("WARNING"):
-                _warn_if_stdio_not_pipe(stdin_fd=f.fileno(), stdout_fd=w)
+                _assert_stdio_is_pipe_compatible(stdin_fd=f.fileno(), stdout_fd=w)
             assert "stdin" in caplog.text
             assert "not a pipe" in caplog.text
         finally:
@@ -1886,13 +1886,13 @@ class TestStdioPipeAssertion:
     def test_closed_fd_warns_about_stat_error(self, caplog):
         """If stdio is closed, os.fstat raises OSError. Warning is
         skipped silently (can't stat the fd)."""
-        from a2a_mcp_server import _warn_if_stdio_not_pipe
+        from a2a_mcp_server import _assert_stdio_is_pipe_compatible
 
         r, w = os.pipe()
         os.close(w)  # Now `w` is a stale fd — fstat will fail.
         try:
             with caplog.at_level("WARNING"):
-                _warn_if_stdio_not_pipe(stdin_fd=r, stdout_fd=w)
+                _assert_stdio_is_pipe_compatible(stdin_fd=r, stdout_fd=w)
             # No warning emitted because fstat failed before the check
             assert "not a pipe" not in caplog.text
         finally: