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2 Commits
Author SHA1 Message Date
taodengandClaude Opus 4.7 c3ba751a8f feat: D27 — round-3 P3 batch (F8 IR validator + F10 ADR amend + F15 /v1/models aliases)
cold-audit catch from 2026-05-24 (round 3)

3 round-3 P3 items batched per IDR. Mixed surfaces but all single-severity
and conceptually independent.

Changes (5 files, +324 / -17):

1. lib/ir/types.mjs — F8 validator extension (+28):
   - `response_format`: must be object with string `.type` (undefined/omitted
     accepted; null, non-object, missing-type all rejected). Forward-compat:
     accepts any string for type so future OpenAI additions (json_schema,
     etc.) flow through without schema bump.
   - `tool_choice`: string form 'auto'/'none'/'required' OR object form
     `{type:'function', function:{name:string}}`. All other shapes rejected.
   Pre-D27 the validator silently accepted any value; the Anthropic plugin's
   `if (irRequest.response_format?.type === 'json_object')` would no-op on
   a malformed string payload.

2. docs/adr/0005-cache-cross-provider.md — F10 Amendment 4 (+8):
   - Documents the IR-vs-body detection ambiguity in § D2: the ADR text
     reads as if detection happens on the IR, but `openai-to-ir.mjs` strips
     `cache_control` from messages per ADR 0003's whitelist policy, so
     IR-side detection is structurally always empty at v1.0
   - Documents the actual v1.0 detection mechanism (server.mjs side-channels
     into the raw body)
   - Documents the cache key `cache_control` slot's always-null status as
     forward-compat (when a future ADR 0003 amendment adds cache_control
     to IR, the slot will start carrying meaningful data without schema bump)
   - Explicit "no code change" — F10 is docs-only

3. lib/providers/index.mjs — F15 alias map export (+11):
   - `getAliasMap()` returns `new Map(_aliasMap)` — defensive copy preventing
     caller mutation of the module-private alias map
   - JSDoc documents use case + defensive-copy intent

4. server.mjs — F15 /v1/models alias surfacing (+25/-7):
   - `handleModels` now emits TWO loops: canonical entries first (preserves
     existing client expectations), then alias entries via `getAliasMap()`
   - Each alias entry has the same 4 OpenAI-spec fields (id/object/created/
     owned_by) — no invented fields per ALIGNMENT Rule 2(b)
   - Disabled-provider alias non-leak: `loadedProviders.has(providerName)`
     gate skips aliases whose target provider is not currently enabled
   - createdTs reused (same per-request timestamp across all entries)
   - JSDoc updated to document new ordering + F15 origin

5. test-features.mjs — +269 / +18 new tests:
   - F8: 13 tests covering response_format (object/string/non-object/missing-
     type) + tool_choice (string variants/object variants/wrong type/no name)
   - F15: 5 tests covering canonical-first ordering, alias presence/count,
     disabled-provider non-leak (with anthropic-only enabled, mistral and
     openai aliases must NOT appear), Rule 2(b) shape conformance

Tests: 358 → 376 (+18). All pass on Node 20.

Reviewer notes (Iron Rule v1.6 § 10.x Mode A, fresh-context opus, independent
of drafter): APPROVE. Critical checks verified:
- F8: all 9+ tool_choice rejection axes traced through code (including
  partial-function-object edge cases). The code handles them correctly even
  where tests don't exercise (non-blocking gap).
- F10: amendment substantively correct. One wording-precision note: the
  amendment says "body only" but the actual code is an OR-disjunction
  (hasCacheControl(ir) || extractCacheControlMarkers(body.messages)).
  Functionally identical at v1.0 because IR strips markers, so first
  disjunct is always false. Forward-compat by construction.
- F15: disabled-provider non-leak verified by manual trace with
  anthropic-only enabled — mistral/openai aliases correctly filtered out
  by `loadedProviders.has(providerName)` gate. Test 17e explicitly
  asserts this.
- F15+D17 round-trip: client GET /v1/models → sees alias entry → POSTs
  with alias → getProviderForModel resolves via same _aliasMap → cache
  key uses canonical → response works. Both surfaces read the same Map
  (SPOT).
- F15+D23 cacheable interaction: cacheable opt-out doesn't suppress
  alias surfacing in /v1/models — cacheable is about cache-write behavior
  while discovery should still surface enabled providers. Intentional.

Authority:
- ADR 0003 § Optional fields (response_format + tool_choice IR shape)
- OpenAI Chat Completions API spec (the field semantics)
  https://platform.openai.com/docs/api-reference/chat/create
- ADR 0005 § D2 + Amendment 4 (F10's own amendment landing here)
- ADR 0002 § Loading model + D17 getProviderForModel SPOT (F15's alias
  origin)
- ALIGNMENT.md Rule 2(b) — no invented OpenAI fields
- CC 开发铁律 v1.6 § 10.x — Round-3 Cold Audit caught all 3

Follow-up items (reviewer's non-blocking suggestions, NOT in this PR):
- F8 micro-tests for null/boolean/partial-function inputs (code handles;
  test gap only)
- F10 wording precision on OR-disjunction
- Nested-describe wrapper quirk in test-features.mjs (pre-existing
  structural issue; D26/D27 describes are children of Suite 16 wrapper).
  Cleanup in a future hygiene pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 16:22:30 +10:00
taodengandClaude Opus 4.7 (noreply@anthropic.com) e2e67de23a feat(phase-1): land IR + plugin loader + server skeleton (D3)
Phase 1 Day 1. First executable code lands. Zero providers wired yet
(per ALIGNMENT.md "v0.1 ships 0 Enabled Providers"); the server starts
clean and POST /v1/chat/completions returns 503 with no_enabled_provider.

Files added:
  lib/ir/types.mjs            - IR v1.0 schema + validators (ADR 0003)
  lib/ir/openai-to-ir.mjs     - OpenAI Chat Completions to IR
  lib/ir/ir-to-openai.mjs     - IR chunks to OpenAI SSE / non-stream
  lib/providers/base.mjs      - Provider contract + validateProvider + ProviderError
  lib/providers/index.mjs     - Static empty registry stub (ADR 0002)
  server.mjs                  - HTTP listener with createOlpServer factory + main guard
  test-features.mjs           - 61 tests across 7 suites (IR / provider / HTTP)

Files modified:
  package.json - main and scripts.start/test added back; targets now exist.

Authority citations:
  IR fields and translation direction: ADR 0003 sections Decision and
    Translation direction model.
  Provider contract (9 fields): ADR 0002 section Provider contract v1.0
    interface.
  Entry surface routes (health, v1/models, v1/chat/completions): OLP v0.1
    spec section 4.1 single-protocol entry; ALIGNMENT.md Authority 2.
  Zero-Enabled-Providers behaviour: ALIGNMENT.md Provider Inventory.

Architectural decisions worth recording:
  1. server.mjs uses a createOlpServer factory plus an import.meta.url
     main guard. The factory returns an unbound http.Server; only the
     main-script invocation calls .listen(). Tests import the real
     server.mjs and exercise the real router. No parallel implementation
     in the test file.

     This pattern was a fold-in from the orchestration step. The initial
     sonnet draft put a top-level server.listen call in server.mjs, which
     forced test-features.mjs to reimplement the router inline (a false-
     confidence trap because the real server logic would never be tested).
     Refactored before reviewer dispatch.

  2. lib/providers/index.mjs ships an empty STATIC_REGISTRY array, not a
     placeholder with dummy entries. ALIGNMENT.md Provider Inventory says
     v0.1 ships zero Enabled Providers; the registry honors that exactly.
     Phase 1 Day 2 adds the first import (Anthropic) when its plugin lands.

  3. BadRequestError lives in openai-to-ir.mjs and ProviderError in
     base.mjs. Reviewer suggested relocating to a shared lib/errors.mjs
     once the count exceeds two; deferred to Phase 1 Day 2 to ship with
     the third typed error class.

  4. contractVersion: '1.0' on each provider plugin: not enforced at D3
     because no providers exist yet. Reviewer flagged for Phase 1 Day 2
     tightening when the first provider lands.

Reviewer chain (Iron Rule 10):
  Initial implementer: sonnet (general-purpose).
  Refactor (createOlpServer + main guard) by the orchestrator after
    catching the inline-router parallel-implementation issue.
  Fresh-context reviewer: opus (ecc:code-reviewer). Verdict
    APPROVE_WITH_MINOR.

Reviewer's two non-blocking findings folded in:
  F1: removed unused createServer import from test-features.mjs line 12,
      left over from the refactor.
  F2: replaced finish_reason value 'error' with 'stop' in both the
      streaming error chunk path (lib/ir/ir-to-openai.mjs line 72) and
      the non-streaming error aggregation path (lib/ir/ir-to-openai.mjs
      line 153). The 'error' value is not in OpenAI's documented
      finish_reason enum (stop / length / tool_calls / content_filter /
      function_call / null), so emitting it would violate ALIGNMENT.md
      Rule 2 (b). Provider errors are now surfaced via a top-level
      response.error object plus an inline content marker. The matching
      test assertion at test-features.mjs line 325 was updated to verify
      finish_reason stays within the OpenAI enum.

Note on the F2 fold-in:
  Reviewer pointed only at the streaming path (line 72). After applying
  that fix I ran grep across lib/ and test-features.mjs for the same
  invention pattern and caught a second hit at line 153 (non-streaming
  aggregation). This is the "fold-in must grep the full repo, not only
  the file the reviewer named" discipline from
  ~/.cc-rules/memory/feedback/evidence_first_under_speed_pressure.md.
  Both hits are fixed in this commit.

Verification:
  node --check on all 7 new files plus modified package.json plus
    server.mjs plus lib/ir/ir-to-openai.mjs - all clean.
  npm test - 61/61 pass in 209ms, no flakes, no skipped.
  OLP_PORT=14001 node server.mjs followed by curl /health returns
    proper JSON; curl /v1/models returns 200 empty list; server shuts
    down cleanly on signal.
  grep "finish_reason.*error" returns zero hits across lib/ and tests.

Co-Authored-By: Claude Opus 4.7 (noreply@anthropic.com)
2026-05-23 17:06:30 +10:00