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test(chat): verify native outbound conversation identity (#3433) - #4365

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codex/260912-60plus-cache-hermes
Sep 12, 2026
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test(chat): verify native outbound conversation identity (#3433)#4365
lidge-jun merged 4 commits into
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codex/260912-60plus-cache-hermes

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@lidge-jun

@lidge-jun lidge-jun commented Sep 12, 2026

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Summary

  • Add real Chat-handler outbound contract coverage related to [Bug]: Intermittent consecutive zero cache hits for Hermes requests through OpenCodeX #3433. Cross caller cache-key presence with underscore session identity, hyphenated session/thread identity, and absent identity. Continuing A/A requests retain identity while fresh B uses a distinct identity despite the same prefix.
  • Capture the actual canonical Responses outbound request and assert exact headers, independent request IDs, cache-key preservation, reasoning-effort translation and absence of synthesized identifiers.
  • No production runtime change. These synthetic fixtures prove the intended OCX transport contract when executed; they are not actual Hermes traffic, Pool-affinity evidence or a cache-hit guarantee. The latest issue still needs a real client-supplied identifier and matched outbound comparison. [Bug]: Intermittent consecutive zero cache hits for Hermes requests through OpenCodeX #3433 remains open.

Verification

  • Local tests of all sizes, build, typecheck and install: NOT RUN, explicitly prohibited by the maintainer request.
  • git diff HEAD^ HEAD --check: passed (text integrity only).
  • Test uses isolated local-home fixtures and synthetic caller credentials, and mocks only upstream fetch. Exact-head hosted CI and independent implementation source review pending.
  • Both test-layout mappings updated. No service configuration, merge or issue closure performed.

Checklist

  • Scope stays focused and avoids unrelated cleanup.
  • Docs or release notes were updated when needed.
  • Security-sensitive changes were reviewed for secrets, auth, and unsafe defaults.

Resumed CI repair integration

Current head 524afd8d80a71fe2c1e0227ac57aa154f77ecf34 is based on 392e182a004d61b38c7cf652642e63b9a11d9a65. The original five-file Hermes change rebased without conflicts; test and mapping range-diff is unchanged. Only tracked evidence documents were added/updated. Independent inherited-model source/security review by Harvey at this exact head: PASS, blocker 0. All seven changed files and the real Chat-to-Responses-to-outbound path were reviewed; original authored changes are identical in range-diff, with evidence-only additions.

Old run 34674763850 FAILED the Combo active-reactivation GUI gate; its four Linux and two macOS runtime shards succeeded. Shared repair #4390 integrated as 20861aebf56c6f8ec2b0d8d04d1d0b54441650bb has successful exact-head CI34688482827, 19 successful jobs and 2 skipped. This is new cumulative evidence, not a claim that the old failure passed. No Combo/Cline/restore source was edited in this PR.

Hosted CI34693156321 is verifying the current Hermes head; terminal success is not yet claimed. Local suites of every size, build, typecheck and install remain NOT RUN. The persisted host goal is blocked and phase C is retained without a reset or completion claim. Parent retains all merge authority; actual Hermes client identity and cache-cohort acceptance remain open in #3433.

Summary by CodeRabbit

  • Documentation

    • Documented Chat conversation identity forwarding across the Chat-to-Responses bridge.
    • Clarified preservation of caller cache keys and supported conversation identity headers, including behavior when identity information is absent.
    • Added CI and validation status notes for ongoing compatibility work.
  • Tests

    • Added coverage for multiple conversation identity header formats.
    • Verified identity preservation, per-request identifiers, growing continuation payloads, and prevention of synthesized sessions when no identity is provided.
    • Updated test-layout mappings for the new coverage.

Reserved final integration slot

The coordinator reserved base c311f9bf7f5003af29fa8e7ebc2f2b5db20267f6 after shared pnpm/Devin fixture repairs. Current head is 65da8427c10a5305d4e437f97d7ee455451b06d7. Rebase was conflict-free; the 99-line Hermes test is byte-identical to previously reviewed 524afd8d80, and its test/mapping authored patch compares =. Only evidence documents additionally name the new base. No runtime change or other lane source edit.

Fresh inherited-model interdiff/source/security audit by Harvey at exact 65da8427c10a5305d4e437f97d7ee455451b06d7: PASS, blocker 0. All seven files accounted for; both rebased commits compare =, the test is byte-identical, both mappings and all parent-base changes are preserved. Previously traced runtime and fixture helpers are unchanged between bases, binding the earlier review to this final head. Run34693156321 is an older candidate run, not final proof; New final-tip run34693408515 is pending at 65da8427c1. No existing job was cancelled by this task. Local suites/build/typecheck/install remain NOT RUN; parent owns merge and actual Hermes field acceptance remains open.

Final documentation-only follow-up: current head 24e637f9c456e6d841455610b5c3ddd7309183ec separates branch/SHA/CI/count tokens in 041 and 060 for discussion_r3996180891. Only these two documents changed (7 lines replaced); git diff 65da8427c10a5305d4e437f97d7ee455451b06d7 HEAD -- src tests scripts is empty. The parent requested this wording correction and thread resolution. Existing final source/security PASS remains bound to unchanged source/test bytes; a new exact-head hosted run is tracked separately.

Maintainer final integration

Owner-authorized dev integration at 24e637f9c456e6d841455610b5c3ddd7309183ec with final-tip remote CI followed after delivery and every local suite prohibited. Independent Harvey final source/security audit PASS0 at65da8427c10a5305d4e437f97d7ee455451b06d7 covers all seven files; coordinator inspected the actual 99-line handler/outbound test and confirmed final24e637 changes only spacing/code formatting in two evidence documents. The sole Trivial review thread is resolved after that correction. No production runtime, credential or user-config change; both mappings and parent base repairs preserved.

Final run https://github.com/lidge-jun/opencodex/actions/runs/34693541371 is pending, not claimed passed. Superseded34693408515/cancelled runs are not final evidence. Actual Hermes traffic/cache behavior remains unverified and #3433 stays open. Local suites/build/typecheck/install NOT RUN. Any final CI failure remains assigned repair work.

Parent-selected cumulative verification

All cache product PRs are integrated by the coordinator. Final Hermes head 24e637f9c456e6d841455610b5c3ddd7309183ec was merged as db7062c37a84b12c4f59abc567d07241bf2a6042. Git ancestry confirms this cumulative tree contains the final claim, repaired affinity and repaired prefix heads as well.

The coordinator selected immutable ref codex/260912-backlog-ci-db7062c at that exact SHA and dispatched lane=all once: final cumulative CI34693695934. The run's head_sha, head_branch, workflow_dispatch event and CI workflow path were verified. Its result is currently pending; no PASS is claimed. The earlier dev run34693306377 was cancelled with zero jobs and is not success evidence. Historical failed and cancelled PR runs remain failed/cancelled. This task does not move the fixed ref, cancel runs or redispatch.

No further product changes or PR creation are planned. Actual Hermes field acceptance remains OPEN in #3433. Local product execution remains NOT RUN; persisted phase C and blocked host goal are not reset or marked complete. Terminal evidence will update this retained description without changing source.

@lidge-jun
lidge-jun requested a review from Ingwannu as a code owner September 12, 2026 05:07
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The pull request is closed.

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Run ID: b260a4a9-82e1-48ec-9456-c18fdafc423a

📥 Commits

Reviewing files that changed from the base of the PR and between 65da842 and 24e637f.

📒 Files selected for processing (2)
  • devlog/_plan/260912_cache_lane/041_hermes_ci_refresh.md
  • devlog/_plan/260912_cache_lane/060_handoff.md

📝 Walkthrough

Walkthrough

The change adds Chat-to-Responses affinity tests. It registers the tests, documents header forwarding behavior, and records Hermes CI and handoff status.

Changes

Chat conversation affinity

Layer / File(s) Summary
Outbound identity forwarding test
tests/responses/chat-conversation-affinity.test.ts
Adds isolated Chat handler tests that capture canonical Responses requests. The tests cover both identity header shapes, optional prompt_cache_key, unique request IDs, growing conversation payloads, and absent-identity behavior.
Test registration and compatibility record
scripts/test-layout/layout.json, tests/fixtures/test-layout-expected.json, structure/data-planes/inbound-compat.md
Registers the new test under the responses domain. Documents preservation of caller identity and cache-key fields without synthesizing session headers.
Hermes execution and handoff records
devlog/_plan/260912_cache_lane/040_hermes.md, devlog/_plan/260912_cache_lane/041_hermes_ci_refresh.md, devlog/_plan/260912_cache_lane/060_handoff.md
Records fixture execution requirements, hosted-CI refresh constraints, failed validation runs, and the incomplete Hermes and host states.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Other

Merge Risk: 🔵 Low · up to 65da8

The change is otherwise mergeable, but the Hermes handoff should separate identifiers from surrounding labels so its rebase and CI evidence can be reliably checked.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 1 files. (2 skipped: 2 … Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and concisely describes the main change: adding Chat tests for native outbound conversation identity. It matches the test file and the stated PR objectives.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 1 files. (2 skipped: 2 unsupported.)

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🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch codex/260912-60plus-cache-hermes

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Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review Status Commit Review trigger
📝 Code Review Completed 2026-09-12T05:10:44.404111Z b254efc PR opened
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Deterministic PR hygiene checks passed.

@lidge-jun

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리뷰 · 우선순위 60 / 80

이 PR은 프로덕션 런타임을 바꾸지 않습니다. Chat → canonical Responses 아웃바운드에서 대화 identity가 어떻게 보존되는지 회귀 테스트만 추가합니다. 대상은 #3433 (Hermes / cache-lane) 증거 축이고, 현재 dev에는 이미 #4340 Claude native affinity와 #4350 continuation replay가 올라가 있으며 cache-lane 본체는 #4347/#4365/#3433으로 아직 열려 있습니다.

새 파일 tests/responses/chat-conversation-affinity.test.ts는 실제 handleChatCompletions를 돌립니다. checkout에도 src/server/chat-completions.ts가 있고, 테스트는 fetch만 목킹해 https://chatgpt.com/backend-api/codex/responses로 나가는 Headers/body를 기록합니다. underscore session_id와 hyphen session-id/thread-id 두 모양, prompt_cache_key 유무, A/A 연속 턴과 새 B 대화를 교차합니다. 요청마다 x-client-request-id가 달라지고, identity가 없으면 공유 cache key만으로 session이 합성되지 않는지도 봅니다. reasoning effort medium → wire reasoning.effort 변환도 같이 고정합니다.

레이아웃 등록은 scripts/test-layout/layout.jsontests/fixtures/test-layout-expected.jsonresponses 스위트로 넣었고, structure 문서 structure/data-planes/inbound-compat.md에 “이 계약은 Hermes 실측·Pool affinity·cache hit을 증명하지 않는다”고 명시했습니다. PR 본문과 테스트 주석도 같은 한계를 반복합니다. 즉 #3433을 닫는 PR이 아니라, OCX가 이미 보존해야 하는 transport 계약을 합성 fixture로 잠그는 증거 조각입니다.

+112/-0, READY, base dev, mergeable입니다. 런타임 diff가 없어서 types/config split 캠페인에도 걸리지 않습니다. 점수는 “#3433을 푸는 픽스”가 아니라 “cache-lane이 막히지 않게 계약을 문서·테스트로 고정”하는 값으로 매겼습니다.

현재 open cache-lane 방향 메모(opencodex-dev-state.json)도 #4347 prefix stabilize와 Hermes #3433/#4365를 같은 묶음으로 보고 있습니다. 이 PR은 그 묶음 안에서 “이미 OCX가 지켜야 하는 outbound identity”만 잠그고, prefix 안정화나 실측 Hermes 캡처는 다른 카드에 남겨 둡니다. 그래서 우선순위는 프로덕션 픽스보다 한 단계 아래, 그래도 lane을 막지 않게 mid-high로 둡니다.

테스트 fixture model gpt-5.6-luna / adapter openai-responses - 현재 catalog에 없는 id여도 이 테스트는 outbound 목만 보므로 동작하지만, 다른 스위트와 모델 id 표기가 어긋나면 나중에 읽기 비용이 납니다. 픽스처 전용임을 테스트 상단에 한 줄 더 적어도 됩니다.

경로 identityHeaders - x-codex-parent-thread-id도 “없어야 한다”고 검사하지만, 요청에 넣는 헤더는 session/thread뿐입니다. 의도된 negative assert인지 확인하세요.

devlog 040_hermes.md - “실제 Hermes 캡처는 없다”는 한계가 맞습니다. 이 PR만으로 #3433을 closed로 표시하면 안 됩니다.

메인테이너의 판단이 필요한 지점

너의 추천
CI만 통과하면 dev에 머지해도 됩니다. 런타임 위험이 없고 #3433 다음 단계(실클라이언트 identifier 비교)의 바닥을 깔아 줍니다. issue 본문/라벨은 닫지 말고, 이 PR이 증명하는 범위만 짧게 남겨 주세요.

이 댓글은 grok-bot이 작성했습니다

Add the #3433 transport matrix with actual Chat handler and captured canonical Responses request. Preserve key and original header spellings; no identity synthesis. Synthetic fixtures do not establish Hermes emission or cache-hit improvement. Local suites NOT RUN; hosted CI pending.

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Inline comments:
In `@devlog/_plan/260912_cache_lane/041_hermes_ci_refresh.md`:
- Line 7: Update the operational handoff entries in 041_hermes_ci_refresh.md and
the referenced entry in 060_handoff.md to separate branch names, commit SHAs, CI
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📒 Files selected for processing (7)
  • devlog/_plan/260912_cache_lane/040_hermes.md
  • devlog/_plan/260912_cache_lane/041_hermes_ci_refresh.md
  • devlog/_plan/260912_cache_lane/060_handoff.md
  • scripts/test-layout/layout.json
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  • tests/fixtures/test-layout-expected.json
  • tests/responses/chat-conversation-affinity.test.ts

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Comment thread devlog/_plan/260912_cache_lane/041_hermes_ci_refresh.md Outdated
@lidge-jun
lidge-jun force-pushed the codex/260912-60plus-cache-hermes branch from 524afd8 to 65da842 Compare September 12, 2026 12:20
@lidge-jun
lidge-jun merged commit db7062c into dev Sep 12, 2026
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@lidge-jun
lidge-jun deleted the codex/260912-60plus-cache-hermes branch September 12, 2026 12:24
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