Five additional breakages surfaced while testing the restored stack
end-to-end (spin up Hermes template → click node → open side panel →
configure secrets → send chat). Each fix is narrowly scoped and has
matching unit or e2e tests so they don't regress.
### 1. SSRF defence blocked loopback A2A on self-hosted Docker
handlers/ssrf.go was rejecting `http://127.0.0.1:<port>` workspace
URLs as loopback, so POST /workspaces/:id/a2a returned 502 on every
Canvas chat send in local-dev. The provisioner on self-hosted Docker
publishes each container's A2A port on 127.0.0.1:<ephemeral> — that's
the only reachable address for the platform-on-host path.
Added `devModeAllowsLoopback()` — allows loopback only when
MOLECULE_ENV ∈ {development, dev}. SaaS (MOLECULE_ENV=production)
continues to block loopback; every other blocked range (metadata
169.254/16, TEST-NET, CGNAT, link-local) stays blocked in dev mode.
Tests: 5 new tests in ssrf_test.go covering dev-mode loopback,
dev-mode short-alias ("dev"), production still blocks loopback,
dev-mode still blocks every other range, and a 9-case table test of
the predicate with case/whitespace/typo variants.
### 2. canvas/src/lib/api.ts: 401 → login redirect broke localhost
Every 401 called `redirectToLogin()` which navigates to
`/cp/auth/login`. That route exists only on SaaS (mounted by the
cp_proxy when CP_UPSTREAM_URL is set). On localhost it 404s — users
landed on a blank "404 page not found" instead of seeing the actual
error they should fix.
Gated the redirect on the SaaS-tenant slug check: on
<slug>.moleculesai.app, redirect unchanged; on any non-SaaS host
(localhost, LAN IP, reserved subdomains like app.moleculesai.app),
throw a real error so the calling component can render a retry
affordance.
Tests: 4 new vitest cases in a dedicated api-401.test.ts (needs
jsdom for window.location.hostname) — SaaS redirects, localhost
throws, LAN hostname throws, reserved apex throws.
### 3. SecretsSection rendered a hardcoded key list
config/secrets-section.tsx shipped a fixed COMMON_KEYS list
(Anthropic / OpenAI / Google / SERP / Model Override) regardless of
what the workspace's template actually needed. A Hermes workspace
declaring MINIMAX_API_KEY in required_env got five irrelevant slots
and nothing for the key it actually needed.
Made the slot list template-driven via a new `requiredEnv?: string[]`
prop passed down from ConfigTab. Added `KNOWN_LABELS` for well-known
names and `humanizeKeyName` to turn arbitrary SCREAMING_SNAKE_CASE
into a readable label (e.g. MINIMAX_API_KEY → "Minimax API Key").
Acronyms (API, URL, ID, SDK, MCP, LLM, AI) stay uppercase. Legacy
fallback preserved when required_env is empty.
Tests: 8 new vitest cases covering known-label lookup, humanise
fallback, acronym preservation, deduplication, and both fallback
paths.
### 4. Confusing placeholder in Required Env Vars field
The TagList in ConfigTab labelled "Required Env Vars (from template)"
is a DECLARATION field — stores variable names. The placeholder
"e.g. CLAUDE_CODE_OAUTH_TOKEN" suggested that, but users naturally
typed the value of their API key into the field instead. The actual
values go in the Secrets section further down the tab.
Relabelled to "Required Env Var Names (from template)", changed the
placeholder to "variable NAME (e.g. ANTHROPIC_API_KEY) — not the
value", and added a one-line helper below pointing to Secrets.
### 5. Agent chat replies rendered 2-3 times
Three delivery paths can fire for a single agent reply — HTTP
response to POST /a2a, A2A_RESPONSE WS event, and a
send_message_to_user WS push. Paths 2↔3 were already guarded by
`sendingFromAPIRef`; path 1 had no guard. Hermes emits both the
reply body AND a send_message_to_user with the same text, which
manifested as duplicate bubbles with identical timestamps.
Added `appendMessageDeduped(prev, msg, windowMs = 3000)` in
chat/types.ts — dedupes on (role, content) within a 3s window.
Threaded into all three setMessages call sites. The window is short
enough that legitimate repeat messages ("hi", "hi") from a real
user/agent a few seconds apart still render.
Tests: 8 new vitest cases covering empty history, different content,
duplicate within window, different roles, window elapsed, stale
match, malformed timestamps, and custom window.
### 6. New end-to-end regression test
tests/e2e/test_dev_mode.sh — 7 HTTP assertions that run against a
live platform with MOLECULE_ENV=development and catch regressions
on all the dev-mode escape hatches in a single pass: AdminAuth
(empty DB + after-token), WorkspaceAuth (/activity, /delegations),
AdminAuth on /approvals/pending, and the populated
/org/templates response. Shellcheck-clean.
### Test sweep
- `go test -race ./internal/handlers/ ./internal/middleware/
./internal/provisioner/` — all pass
- `npx vitest run` in canvas — 922/922 pass (up from 902)
- `shellcheck --severity=warning infra/scripts/setup.sh
tests/e2e/test_dev_mode.sh` — clean
- `bash tests/e2e/test_dev_mode.sh` — 7/7 pass against a live
platform + populated template registry
### SaaS parity
Every relaxation remains conditional on MOLECULE_ENV=development.
Production tenants run MOLECULE_ENV=production (enforced by the
secrets-encryption strict-init path) and always set ADMIN_TOKEN, so
none of these code paths fire on hosted SaaS. Behaviour on real
tenants is byte-for-byte unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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