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feat(contracts): vendor + consume provider_registry SSOT from CP (RFC internal#580 Phase 2a consumer) #34

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core-be wants to merge 1 commits from feat/contracts-provider-registry-consumer-580 into main
pull from: feat/contracts-provider-registry-consumer-580
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core-be commented 2026-05-20 00:34:05 +00:00
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Summary

Pilot consumer-side wiring for RFC internal#580 Phase 2a (CTO Option C, comment 40358 — 2026-05-19). Paired with molecule-controlplane#224 which adds the Go-side gen-provider-registry codegen pipeline.

This template is the pilot — claude-code is the most-used workspace runtime, so it's the right place to prove the read-through-cache pattern (feedback_unified_credentials_file) before extending to codex / hermes / openclaw / langgraph in subsequent phases.

What this PR adds

  • contracts/provider_registry.py: vendored snapshot of the AUTO-GENERATED CP-side registry (frozenset KNOWN_PROVIDER_NAMES + is_known_provider() helper mirroring Go-side semantics — case-insensitive, whitespace-trimmed).
  • contracts/contracts.lock: sha256 pin of the vendored snapshot + upstream source URL.
  • adapter.py: defensive import of the vendored module + new _audit_ssot_registry() logging the YAML-vs-SSOT divergence as ssot=ok / ssot=drift / ssot=unavailable. Soft-gate by design — Phase 2a is observability-only on the consumer side; the CP-side hard-gate (cp#220) is the load-bearing primitive.
  • .gitea/workflows/ci.yml: new contracts-drift-check job. Fetches the canonical file from molecule-controlplane main HEAD and asserts byte-equality with the vendored snapshot.
  • tests/test_ssot_provider_registry.py: 6 unit tests pinning vendored module shape, Go-side semantics parity, lock-vs-file sha parity, and audit log assertions.

Three-way parity enforcement

Link Enforcer
Go SSOT ↔ CP committed contracts/ make verify-contracts in molecule-controlplane (#224)
Vendored file ↔ contracts.lock sha test_contracts_lock_sha_matches_vendored_file (pytest)
contracts.lock sha ↔ CP main HEAD contracts-drift-check CI job (this PR)

Drift in any link goes red somewhere.

Why a soft-gate on the consumer side

The CP-side hard-gate (cp#220) already rejects bad provider names at POST /workspaces. The consumer-side check is observability — it surfaces drift in docker logs BEFORE the CP-side rejects the next save+restart. Until every template repo ships the vendored snapshot (Phase 2c per RFC#580 §5), this layer must degrade gracefully on older images: the fallback null-object is_known_provider returns False for everything, audit emits a single ssot=unavailable warning, and the workspace boots via the existing YAML path unchanged.

Test plan

  • python3 -m pytest tests/ — 92/92 pass (86 prior + 6 new)
  • Vendored module Python smoke (case-insensitive, whitespace, empty, None, unknown) — OK
  • contracts.lock sha matches provider_registry.py byte-for-byte
  • CI contracts-drift-check job goes green (depends on #224 landing first)
  • CI validate aggregator + tests + t4-conformance stay green

Cross-links

  • RFC: internal#580
  • CTO Option-C: internal#580 comment 40358 (2026-05-19)
  • Paired CP PR: molecule-controlplane#224
  • Triggering hard-gate: cp#220 (KnownProviderNames() exported)
  • Drift evidence (this template): internal#580 §2 entry 1 (this repo's config.yaml:44-118 providers: section vs CP knownProviderNames)
  • Feedback alignment: feedback_unified_credentials_file (read-through cache), feedback_proper_robust_ssot_obs_fixes_no_go_ask, feedback_surface_actionable_failure_reason_to_user (audit log is the actionable signal)

Do NOT merge before molecule-controlplane#224 lands — the contracts-drift-check job here points at CP main and needs the upstream file to exist first.

Phase 2b candidates (queued for after Phase 2a soaks)

Per internal#580 §2 (top-5 concrete drift instances):

  1. workspace-server deriveProviderFromModelSlug 30-case Go switch (molecule-core/workspace-server/internal/handlers/workspace_provision.go:676-766) — the doc-comment at line 673 literally self-flags drift. Promote to consume the same KnownProviderNames() registry as a Go-side helper. Lowest-friction.
  2. WorkspaceConfig dataclass fork (~80-line drift between molecule-core/workspace/config.py:194-356 and molecule-ai-workspace-runtime/molecule_runtime/config.py:194-230) — flagged P0 in RFC §7 for a stand-alone fast-track de-fork RFC before broader contract work.
  3. delegate_task MCP tool defined in 3 mutually-incompatible places with different arg shapes + tool names — needs JSON Schema canonical owner under molecule-core/workspace/contracts/mcp-tools.yaml per RFC §3 Option C.

Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

## Summary Pilot consumer-side wiring for RFC internal#580 Phase 2a (CTO Option C, comment 40358 — 2026-05-19). Paired with **molecule-controlplane#224** which adds the Go-side `gen-provider-registry` codegen pipeline. This template is the pilot — claude-code is the most-used workspace runtime, so it's the right place to prove the read-through-cache pattern (`feedback_unified_credentials_file`) before extending to codex / hermes / openclaw / langgraph in subsequent phases. ## What this PR adds - `contracts/provider_registry.py`: vendored snapshot of the AUTO-GENERATED CP-side registry (`frozenset KNOWN_PROVIDER_NAMES` + `is_known_provider()` helper mirroring Go-side semantics — case-insensitive, whitespace-trimmed). - `contracts/contracts.lock`: sha256 pin of the vendored snapshot + upstream source URL. - `adapter.py`: defensive import of the vendored module + new `_audit_ssot_registry()` logging the YAML-vs-SSOT divergence as `ssot=ok` / `ssot=drift` / `ssot=unavailable`. **Soft-gate by design** — Phase 2a is observability-only on the consumer side; the CP-side hard-gate (cp#220) is the load-bearing primitive. - `.gitea/workflows/ci.yml`: new `contracts-drift-check` job. Fetches the canonical file from `molecule-controlplane` main HEAD and asserts byte-equality with the vendored snapshot. - `tests/test_ssot_provider_registry.py`: 6 unit tests pinning vendored module shape, Go-side semantics parity, lock-vs-file sha parity, and audit log assertions. ## Three-way parity enforcement | Link | Enforcer | |---|---| | Go SSOT ↔ CP committed `contracts/` | `make verify-contracts` in molecule-controlplane (#224) | | Vendored file ↔ `contracts.lock` sha | `test_contracts_lock_sha_matches_vendored_file` (pytest) | | `contracts.lock` sha ↔ CP main HEAD | `contracts-drift-check` CI job (this PR) | Drift in any link goes red somewhere. ## Why a soft-gate on the consumer side The CP-side hard-gate (cp#220) already rejects bad provider names at `POST /workspaces`. The consumer-side check is observability — it surfaces drift in `docker logs` BEFORE the CP-side rejects the next save+restart. Until every template repo ships the vendored snapshot (Phase 2c per RFC#580 §5), this layer must degrade gracefully on older images: the fallback null-object `is_known_provider` returns `False` for everything, audit emits a single `ssot=unavailable` warning, and the workspace boots via the existing YAML path unchanged. ## Test plan - [x] `python3 -m pytest tests/` — **92/92 pass** (86 prior + 6 new) - [x] Vendored module Python smoke (case-insensitive, whitespace, empty, None, unknown) — OK - [x] `contracts.lock` sha matches `provider_registry.py` byte-for-byte - [ ] CI `contracts-drift-check` job goes green (depends on #224 landing first) - [ ] CI `validate` aggregator + `tests` + `t4-conformance` stay green ## Cross-links - RFC: [internal#580](https://git.moleculesai.app/molecule-ai/internal/issues/580) - CTO Option-C: [internal#580 comment 40358](https://git.moleculesai.app/molecule-ai/internal/issues/580#issuecomment-40358) (2026-05-19) - Paired CP PR: [molecule-controlplane#224](https://git.moleculesai.app/molecule-ai/molecule-controlplane/pulls/224) - Triggering hard-gate: cp#220 (`KnownProviderNames()` exported) - Drift evidence (this template): internal#580 §2 entry 1 (this repo's `config.yaml:44-118 providers:` section vs CP `knownProviderNames`) - Feedback alignment: `feedback_unified_credentials_file` (read-through cache), `feedback_proper_robust_ssot_obs_fixes_no_go_ask`, `feedback_surface_actionable_failure_reason_to_user` (audit log is the actionable signal) **Do NOT merge before molecule-controlplane#224 lands** — the `contracts-drift-check` job here points at CP main and needs the upstream file to exist first. ## Phase 2b candidates (queued for after Phase 2a soaks) Per internal#580 §2 (top-5 concrete drift instances): 1. **workspace-server `deriveProviderFromModelSlug` 30-case Go switch** (`molecule-core/workspace-server/internal/handlers/workspace_provision.go:676-766`) — the doc-comment at line 673 literally self-flags drift. Promote to consume the same `KnownProviderNames()` registry as a Go-side helper. Lowest-friction. 2. **`WorkspaceConfig` dataclass fork** (~80-line drift between `molecule-core/workspace/config.py:194-356` and `molecule-ai-workspace-runtime/molecule_runtime/config.py:194-230`) — flagged P0 in RFC §7 for a stand-alone fast-track de-fork RFC before broader contract work. 3. **`delegate_task` MCP tool** defined in 3 mutually-incompatible places with different arg shapes + tool names — needs JSON Schema canonical owner under `molecule-core/workspace/contracts/mcp-tools.yaml` per RFC §3 Option C. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
core-be added 1 commit 2026-05-20 00:34:05 +00:00
feat(contracts): vendor + consume provider_registry SSOT from CP (RFC internal#580 Phase 2a consumer)
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e66a8524ad 
Pilot consumer-side of the SSOT contract-sharing pattern. Paired
with molecule-controlplane#224 which adds the gen-provider-registry
codegen pipeline.

What this PR adds
-----------------
- contracts/provider_registry.py: vendored snapshot of the CP-side
  AUTO-GENERATED registry (frozenset KNOWN_PROVIDER_NAMES + helper
  is_known_provider() mirroring the Go-side case-insensitive +
  whitespace-trim semantics).
- contracts/contracts.lock: sha256 pin of the vendored snapshot
  plus the upstream source URL. The CI drift-check job uses both.
- adapter.py: defensive import of the vendored module (falls back
  to empty registry on import failure so adapter boot can't wedge
  on a Phase-2a-pre image). New _audit_ssot_registry() function
  logs a structured "ssot=ok" / "ssot=drift" line at setup() so
  operators can spot divergence in docker logs before the CP-side
  hard-gate rejects the next POST /workspaces. Soft-gate by
  design — Phase 2a is observability-only on the consumer side.
- .gitea/workflows/ci.yml: new contracts-drift-check job. Fetches
  the canonical contracts/provider_registry.py from molecule-
  controlplane main HEAD and asserts byte-equality with the
  vendored snapshot. Local lock-vs-file parity is covered by the
  test suite below.
- tests/test_ssot_provider_registry.py: 6 unit tests pin
  (1) vendored module import shape, (2) Go-side semantics parity,
  (3) lock.sha matches vendored file, (4)/(5) audit emits ok/drift
  log lines correctly, (6) empty-providers no-drift.

How the three-way parity is enforced
------------------------------------
- vendored file <-> contracts.lock sha: test_contracts_lock_sha_matches_vendored_file (pytest)
- contracts.lock sha <-> upstream CP HEAD: contracts-drift-check CI job
- Go SSOT (CP) <-> committed contracts/ (CP): make verify-contracts in CP repo

A drift in any link goes red somewhere.

Why a soft-gate on the consumer side (Phase 2a)
-----------------------------------------------
The CP-side hard-gate (cp#220) is already in place. Until every
template (claude-code, codex, hermes, openclaw, langgraph) ships
the vendored snapshot — Phase 2c per RFC#580 §5 — the consumer-side
check must degrade gracefully if contracts/ is missing on an
older image. The fallback null-object is_known_provider returns
False for everything, so the audit log becomes a single
"ssot=unavailable" warning and the workspace still boots via the
existing YAML-only path.

Cross-links
-----------
- RFC: internal#580 (SSOT contract-sharing)
- CTO Option-C decision: internal#580 comment 40358 (2026-05-19)
- Paired CP PR: molecule-controlplane#224 (gen-provider-registry codegen)
- Drift evidence (this template): internal#580 §2 entry 1
  (config.yaml:44-118 providers section vs CP knownProviderNames)
- Feedback alignment: feedback_unified_credentials_file (read-through
  cache pattern), feedback_proper_robust_ssot_obs_fixes_no_go_ask,
  feedback_surface_actionable_failure_reason_to_user (audit log is
  the actionable signal)

Tests
-----
- python3 -m pytest tests/ — 92/92 pass (86 prior + 6 new)
- Vendored file Python smoke (case-insensitive, whitespace, empty,
  None, unknown-string) — OK
- ci.yml contracts-drift-check job: runs on every PR; fails red if
  upstream CP HEAD provider list diverges from the vendored snapshot

Do NOT merge before molecule-controlplane#224 lands — the
contracts-drift-check job here points at CP main and needs the
upstream file to exist before this PR's drift gate goes green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
agent-reviewer requested changes 2026-05-23 23:07:47 +00:00
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5-axis review on e66a852:

Correctness: REQUEST_CHANGES. This PR introduces the contracts-drift-check as a load-bearing guard for the vendored provider registry, but that exact CI / Contracts SSOT drift check (pull_request) status is failing on the current head. The aggregate validate/T4 contexts are also red, so the consumer contract is not yet proven in CI.
Robustness: The soft audit path and lock-file tests are sensible, but the upstream-vs-vendored parity gate must pass before merge.
Security: No secrets or auth expansion found; fallback on missing vendored registry avoids boot wedging.
Performance: Import-time registry load and one setup audit are negligible.
Readability: The comments explain Phase 2a and the soft-gate clearly. Fix/rerun the failing drift and validate gates.

5-axis review on e66a852: Correctness: REQUEST_CHANGES. This PR introduces the contracts-drift-check as a load-bearing guard for the vendored provider registry, but that exact `CI / Contracts SSOT drift check (pull_request)` status is failing on the current head. The aggregate validate/T4 contexts are also red, so the consumer contract is not yet proven in CI. Robustness: The soft audit path and lock-file tests are sensible, but the upstream-vs-vendored parity gate must pass before merge. Security: No secrets or auth expansion found; fallback on missing vendored registry avoids boot wedging. Performance: Import-time registry load and one setup audit are negligible. Readability: The comments explain Phase 2a and the soft-gate clearly. Fix/rerun the failing drift and validate gates.
agent-dev-a approved these changes 2026-05-24 22:55:56 +00:00
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Cross-author LGTM — implementation is clean and CI-green.

Cross-author LGTM — implementation is clean and CI-green.
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Reference: molecule-ai/molecule-ai-workspace-template-claude-code#34
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