fix(responses): keep caller cancellations out of upstream failure logs - #3515
fix(responses): keep caller cancellations out of upstream failure logs#3515VXNCXNX wants to merge 2 commits into
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Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughNative HTTP/SSE passthrough now propagates request aborts to inspection, rechecks cancellation during reads, and distinguishes client cancellation from upstream failure. Documentation and tests cover terminal status, stream state, usage, and pool health. ChangesNative passthrough cancellation handling
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to Native passthrough streams now classify caller cancellations as 499 client cancellations without penalizing Codex pool health, while retaining 502 handling for genuine upstream resets. No current merge-blocking risk remains. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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In `@tests/server-auth.test.ts`:
- Line 4178: Update the client-stream EOF test around getRequestLogEntries to
poll for the matching requestId until INTERNAL_DEADLINE_MS, following the
existing caller-cancellation test pattern, then assert the log fields only after
the inspection pump has recorded its terminal result.
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docs-site/src/content/docs/reference/proxy-formats.mdsrc/server/relay.tssrc/server/responses/core.tstests/server-auth.test.ts
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리뷰 · 우선순위 70 / 80이 PR은 native Responses HTTP/SSE passthrough에서 호출자가 일부러 끊은 스트림을 上游(upstream) 장애처럼 기록하던 버그를 고칩니다. 지금 문제는 이렇게 갈라져 있습니다. upstream fetch에는 이미 호출자 abort가 연결되지만, tee inspection 쪽은 응답 body cancel 훅에서만 오는 시그널을 봅니다. 호출자가 HTTP 요청만 abort하고 고치는 방법은 두 겹입니다. (1) 테스트는
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Approved on exact head 4f09faf5d3. The implementation now combines the request-abort and body-cancel signals only for the native HTTP tee inspection path, rechecks the signal at both read-settlement boundaries, and preserves a real observed terminal during the bounded drain. The regressions distinguish caller cancellation (499, no pool penalty) from a genuine upstream reset (502, failure streak increment) and now wait for asynchronous inspection finalization deterministically. There are no unresolved threads; React Doctor and the full exact-head Cross-platform CI both completed successfully. The branch is three dev commits behind, within the repository freshness gate, and remains mergeable.
…s (carry of #3515) (#3541) * fix(responses): classify caller-aborted passthrough streams as cancellation * test(responses): wait for upstream reset inspection log * chore: carry #3515 onto current dev Co-authored-by: VXNCXNX <93332837+VXNCXNX@users.noreply.github.com> --------- Co-authored-by: Vincent <vincent@preuve.ai> Co-authored-by: jun <jun@lidge.dev> Co-authored-by: VXNCXNX <93332837+VXNCXNX@users.noreply.github.com>
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Summary
Aborting a native Responses HTTP stream after output can record a synthetic
502 upstream_server_errorand increment the Codex pool account's failure streak, even though the caller intentionally cancelled. Codex may do this while processing pending input and continue the task, leaving misleading failures in request history. Related to #186.The upstream fetch already receives the caller's abort signal, but the tee inspection branch only observes its separate response-body cancellation signal. In addition, Bun can settle the failed read before dispatching all abort listeners. Combine the caller and body-cancel signals for inspection and check the signal's state when reads settle. Cancellation now records
499/client_cancel, while genuine upstream resets still record 502 and update account health. Existing bounded post-disconnect inspection still preserves observed upstream terminals.The proxy runtime is Bun-only; the package pins Bun 1.4.0, which supports
AbortSignal.any. The Node engine requirement covers the launcher, not this streaming implementation. The post-read signal check intentionally runs beforedrainStopped:markClientGone()is idempotent, so a read woken bystopDrain()cannot restart its timer or drain budget.The regression explicitly selects
legacy-teeto exercise the affected path regardless of host defaults. The same fix applies whenever stream selection chooses tee, including macOSauto; eager relay and WebSocket behavior are outside this change. The account-health assertion and documentation refer to the Codex account pool, without claiming coverage of generic OAuth pools. This PR addresses the native HTTP tee cancellation symptom related to #186 and deliberately leaves that broader issue open.Verification
Reproduced against a real local HTTP upstream and the actual
startServerhandler: the new cancellation regression fails on the base code with status 502,streamAborted: true, andcloseReason: terminal.The regression passes after the fix, including persisted usage status 499 and unchanged pool failure count. A separate real-HTTP reset test confirms status 502 and an incremented failure count.
bun test tests/server-auth.test.ts tests/passthrough-abort.test.ts tests/consume-for-inspection-cancel.test.ts tests/stream-aborted-marker.test.ts tests/core-lab-boundary.test.ts: 159 passed, 0 failed. The final additional persistence assertions also passed in the focused two-test regression run.bun run typecheck: passed.cd docs-site && bun run build: passed, 425 pages.bun run prepush: passed, including the full test runner (17,819 passed in the main batch plus 161 in serial groups; 14 skipped; 0 failed), typecheck, and privacy scan.After fixing the CodeRabbit test race, reran both focused regressions and the full pre-push checks on
4f09faf5d: 17,980 passed, 14 skipped, 0 failed; typecheck and privacy scan passed.Tested on macOS arm64 with the repository's bundled Bun 1.4.0. The fix is scoped to the native HTTP tee inspection path.
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Summary by CodeRabbit
Bug Fixes
499withclient_canceland no longer penalize account health.Documentation
Tests