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feat(usage): attribute a recovery the send budget withheld - #5056

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@lidge-jun lidge-jun commented Sep 18, 2026 •

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Summary

A recovery the send budget refused left no trace, so a request log could not be read.

When reserveDispatch refuses, fetchGoogleWithRetry returns the upstream response it already holds and the account-rotation loops break — both correct, and both silent. The persisted attempt then showed the same sendCount and the same empty recoveryKinds as a request where no recovery was ever eligible. Those two need opposite follow-ups: one says raise the budget, the other says look upstream.

recoveryWithheld is a bounded per-attempt vocabulary recorded beside recoveryKinds. The four states the issue asks to distinguish fall out of the pair rather than needing four values: neither field set means nothing was eligible; a withheld reason means something was and the budget refused it; a recovery kind means one was dispatched.

sendCount does not move. Nothing was sent, and inflating the count to signal a refusal would corrupt the one number that means "requests this proxy actually made". That is also why the adapter seam is onRecoveryWithheld, a sibling of the existing onPhysicalSend rather than another field on it — an adapter cannot report a refusal as a send even by accident.

Recorded at the four places that previously fell through silently: the Google retry ladder when it is holding a retryable response, and the generic OAuth rotation in the run-turn, passthrough, and adapter-continuation loops. The last one distinguishes "the budget refused" from "rotation found no next account", which produce the same response today.

The vocabulary is retry-send-budget and rotation-send-budget. It is never a credential, an account id, an upstream body, prompt content, or exception text.

Closes #5044.

Verification

Two adapter cases in tests/adapters/google/google-vertex-http.test.ts, beside the prepaid-final-send cases they extend. A 429 and a 503 with a prepaid budget assert all four properties the issue's suggested regression names: one physical send, the original response preserved by identity, no fabricated recovery send, and a stable retry-send-budget attribution. A 404 — a status the ladder would never retry — asserts nothing withheld, which is what keeps the empty case meaningful; a field that is always set says nothing.

One case in tests/usage/usage-log.test.ts for the persisted projection: recognized reasons round trip, a repeated reason deduplicates because one rotation refused twice is one fact about the attempt, an unrecognized reason is dropped rather than failing the row, and an attempt that withheld nothing omits the key entirely so old rows keep their exact shape. It also re-asserts that sendCount is untouched across all four.

Hosted CI on this branch is the check; no local suite was run.

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.

No credential, auth, workflow, or release surface is touched. The added field is a fixed two-value enum validated on read, so a malformed or hostile log line cannot introduce arbitrary text into the projection, and the writer has no path that derives the value from a response body or an exception.

Summary by CodeRabbit

  • New Features

    • Added usage logging for retry and credential-rotation recoveries that are eligible but withheld by request send limits.
    • Recovery-withheld reasons are recorded separately from physical sends, keeping send counts accurate.
    • Logs now distinguish between recoveries withheld by budget limits and requests where no recovery was applicable.
  • Bug Fixes

    • Improved observability when retry or credential rotation cannot proceed because the shared send budget is exhausted.
    • Preserved the original response when a retry is withheld.

When the send budget refused a retry or an account-rotation hop, the runtime
returned the upstream response it already had and recorded nothing. A log with
one physical send was therefore ambiguous: it could mean no recovery was
eligible, or that one was and the budget withheld it. Those need opposite
follow-ups, and only the first was visible.

`recoveryWithheld` is a bounded per-attempt vocabulary recorded beside
`recoveryKinds` and separately from `sendCount`. Nothing was sent, so the count
that means "requests this proxy actually made" does not move. The four states
the issue asks to distinguish fall out of the pair: neither field set means
nothing was eligible, a withheld reason means something was and the budget
refused, and a recovery kind means one was dispatched.

Recorded at the four places that previously fell through silently: the Google
retry ladder when it holds a retryable response, and the generic OAuth rotation
in the run-turn, passthrough and adapter-continuation loops.

The adapter seam is `onRecoveryWithheld`, a sibling of the existing
`onPhysicalSend` rather than a new argument to it, so an adapter cannot report
a refusal as a send.

Closes #5044.
@lidge-jun
lidge-jun requested a review from Ingwannu as a code owner September 18, 2026 11:25
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✅ Deterministic PR hygiene checks passed.

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Codex Review Summary

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Review Status Commit Review trigger
📝 Code Review ✅ Completed 2026-09-18T11:28:08.539086Z 2abdc2c PR opened
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@github-actions github-actions Bot added the enhancement New feature or request label Sep 18, 2026
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Review Change StackReview Change Stack

📝 Walkthrough

Walkthrough

The change adds bounded recovery-withheld metadata for retry and OAuth rotation events refused by the send budget. Adapter callbacks, response dispatch, request logging, normalization, and regression tests now preserve this attribution without increasing physical send counts.

Changes

Recovery-withheld attribution

Layer / File(s) Summary
Recovery-withheld contracts and persistence
src/usage/log.ts, src/adapters/base.ts, src/server/request-log.ts
Defines retry-send-budget and rotation-send-budget, stores unique recognized reasons on attempts, omits unknown or empty values during normalization, and preserves physical sendCount.
Retry refusal callback flow
src/adapters/google-http.ts, src/server/responses/request-send-budget.ts, src/server/responses/adapter-dispatch.ts, src/server/responses/adapter-continuation.ts, tests/adapters/google/google-vertex-http.test.ts
Reports retry-send-budget when a retryable response remains pending after budget refusal. Dispatch and continuation paths pass the callback through the shared send-budget state. Tests verify response preservation, one physical send, budget usage, and no backoff.
Credential rotation refusal attribution
src/server/responses/run-turn-execution.ts, src/server/responses/passthrough-dispatch.ts, src/server/responses/adapter-continuation.ts, tests/usage/usage-log.test.ts
Records rotation-send-budget when eligible OAuth rotation is refused. The usage-log test verifies recognized reasons, deduplication, unknown-value removal, and unchanged sendCount.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature · Severity of issue fixed: Low

Sequence Diagram(s)

sequenceDiagram
  participant Adapter
  participant ResponsesSendBudget
  participant RequestLog
  participant PersistedAttempt
  Adapter->>ResponsesSendBudget: report withheld recovery
  ResponsesSendBudget->>RequestLog: noteAttemptRecoveryWithheld(reason)
  RequestLog->>PersistedAttempt: append recognized reason
  Adapter-->>ResponsesSendBudget: return existing response or stop rotation
Loading

Merge Risk: 🟡 Moderate · up to 2abdc

Some budget-refused OAuth rotations will remain indistinguishable from ineligible rotations in request logs. Add the missing attribution before merging.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 63.64% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 11 functions across 11 files. 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 describes the primary change: attributing recoveries that the send budget withheld. It is specific, concise, and aligned with the changeset.
Linked Issues check ✅ Passed The pull request meets the coding requirements in #5044. src/usage/log.ts defines the closed AttemptRecoveryWithheld vocabulary and adds recoveryWithheld to PersistedUsageAttempt. Its normaliz…
Out of Scope Changes check ✅ Passed The changed production files all support #5044 attribution, propagation, persistence, or send-count semantics. The changed tests validate those same behaviors. No unrelated feature, credential handlin…
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💡 Codex Review

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Reviewed commit: 2abdc2c7d0

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Comment on lines +123 to +124
const noteAdapterRecoveryWithheld = (withheld: { reason: AttemptRecoveryWithheld }): void => {
noteAttemptRecoveryWithheld(logCtx.activeAttempt, withheld.reason);

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P2 Badge Record refusals in every recovery loop

When a Responses request reaches a retryable response with an exhausted shared budget outside the Google adapter path, this callback is never invoked: the generic OAuth loop still silently breaks at adapter-dispatch.ts:801-809, the generic and Anthropic sidecar loops return at sidecar-execution.ts:179-183 and 217-221, and the same-target retry guards simply skip their loops. Those attempts therefore persist neither a recovery kind nor a withheld reason and remain indistinguishable from attempts where recovery was never eligible. Route refusal recording through the shared budget helpers, or instrument every refusal exit, and add focused coverage for these paths.

AGENTS.md reference: src/AGENTS.md:L24-L26

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Comment thread src/usage/log.ts
Comment on lines +162 to +166
/**
* Recoveries this attempt was eligible for and did not make. Absent on ordinary attempts so
* old rows keep their exact shape.
*/
recoveryWithheld?: AttemptRecoveryWithheld[];

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P2 Badge Surface withheld recovery reasons in the log UI

Although recoveryWithheld is persisted and returned with attempts, gui/src/pages/Logs.tsx does not include it in LogAttempt, and its attempt-reason calculation only examines errorCode and recoveryKinds (Logs.tsx:1124-1128). Consequently, operators using the dashboard still cannot distinguish a budget-withheld recovery from an ineligible recovery—the diagnostic distinction introduced here is visible only in raw JSON. Add the closed UI type, localized labels, and rendering for these reasons.

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Caution

Some comments are outside the diff and can’t be posted inline due to GitHub limitations.

⚠️ Outside diff range comments (1)

🟠 Major · Record the refused OAuth rotation before exiting the recovery loop. · adapter-dispatch.ts:809

src/server/responses/adapter-dispatch.ts:809
🗄️ Data Integrity & Integration | 🟠 Major | ⚡ Quick win

Record the refused OAuth rotation before exiting the recovery loop.

When the OAuth roster permits another account but reserveCredentialHop() returns allowed: false, Line 809 exits without adding rotation-send-budget. The final attempt then looks identical to one where rotation was not eligible, despite the new callback being available in this function.

Call noteAdapterRecoveryWithheld({ reason: "rotation-send-budget" }) immediately before this break. This matches the passthrough, continuation, and run-turn rotation paths while preserving the upstream 429 and sendCount.

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only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.

In `@src/server/responses/adapter-dispatch.ts` at line 809, In the recovery loop,
update the branch handling a refused result from reserveCredentialHop() so it
calls noteAdapterRecoveryWithheld({ reason: "rotation-send-budget" })
immediately before breaking. Preserve the existing break behavior and upstream
429/sendCount handling.

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only still-valid issues, skip the rest with a brief reason, keep changes
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Outside diff comments:
In `@src/server/responses/adapter-dispatch.ts`:
- Line 809: In the recovery loop, update the branch handling a refused result
from reserveCredentialHop() so it calls noteAdapterRecoveryWithheld({ reason:
"rotation-send-budget" }) immediately before breaking. Preserve the existing
break behavior and upstream 429/sendCount handling.

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Reviewing files that changed from the base of the PR and between 9939b88 and 2abdc2c.

📒 Files selected for processing (11)
  • src/adapters/base.ts
  • src/adapters/google-http.ts
  • src/server/request-log.ts
  • src/server/responses/adapter-continuation.ts
  • src/server/responses/adapter-dispatch.ts
  • src/server/responses/passthrough-dispatch.ts
  • src/server/responses/request-send-budget.ts
  • src/server/responses/run-turn-execution.ts
  • src/usage/log.ts
  • tests/adapters/google/google-vertex-http.test.ts
  • tests/usage/usage-log.test.ts

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@lidge-jun

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리뷰 · 우선순위 75 / 80

지금 dev HEAD(9939b884f, tip #5054 Antigravity child session)에서 요청 send budget이 재시도·계정 로테이션을 거절해도, 로그에는 “자격은 있었는데 budget이 막았다”는 흔적이 안 남습니다. 이슈 #5044가 그 구멍을 적었고, 이 PR은 sendCount를 건드리지 않은 채 옆에 recoveryWithheld라는 좁은 어휘만 붙입니다.

설명하면 이렇습니다. 예전에는 createAdapterPhysicalSend / reserveDispatch가 거절하면 SendBudgetExhaustedError가 나고, src/adapters/google-http.ts의 fetchGoogleWithRetry는 pendingResponse가 있으면 원 upstream 응답을 그대로 돌려줬습니다. 계정 로테이션 루프도 hop이 거절되면 break만 했습니다. 둘 다 동작은 맞는데, persisted attempt에는 sendCount=1과 빈 recoveryKinds만 남아서 “처음부터 recovery 자격이 없었다”와 “자격은 있었는데 budget이 막았다”를 구분할 수 없었습니다. #4856 조사 때 증거가 안 읽혔던 이유가 바로 이것입니다.

이 PR의 핵심은 src/usage/log.ts에 AttemptRecoveryWithheld(retry-send-budget | rotation-send-budget)를 두고, PersistedUsageAttempt.recoveryWithheld?에 쌓는 것입니다. recoveryKinds와 섞지 않아서 대시보드가 “recovery가 일어났다”로 오해하지 않습니다. sendCount도 안 올립니다. 어댑터 쪽 seam도 onPhysicalSend에 필드를 끼워 넣지 않고 형제 콜백 onRecoveryWithheld를 새로 두었습니다. 거절을 실수로 send로 세는 길을 막은 선택입니다.

기록 지점은 이슈가 지목한 네 갈래에 맞춰 있습니다. Google 재시도 사다리는 pendingResponse를 들고 SendBudgetExhaustedError를 받을 때 retry-send-budget을 남깁니다. generic OAuth 로테이션은 run-turn-execution·passthrough-dispatch·adapter-continuation에서 hop이 거절될 때 rotation-send-budget을 남깁니다. continuation 쪽은 “budget이 거절”과 “다음 계정이 없음”이 같은 응답을 내도 로그로는 갈라지게 해 두었습니다. noteAttemptRecoveryWithheld는 중복 이유를 한 번만 넣고, normalize는 모르는 값을 버리고 빈 배열이면 키 자체를 빼서 예전 행 모양을 유지합니다.

회귀도 이슈가 원한 형태입니다. tests/adapters/google/google-vertex-http.test.ts는 429/503에서 원 응답 동일성·물리 send 1회·retry-send-budget·재전송 없음을 묶고, 404처럼 사다리가 절대 재시도하지 않는 상태에서는 withheld가 비어 있어야 “비자격” 의미가 살아 있음을 고정합니다. tests/usage/usage-log.test.ts는 인식된 이유 round-trip·중복 제거·미지 값 drop·키 생략을 확인합니다. 호스티드 CI는 hygiene/enforce-target/test 1–3/npm-global/keyring/docker smoke가 이미 success이고, 이 글을 쓰는 시점 기준 test 4/4·macos 2/2만 아직 돌고 있었습니다. types/config 대형 스플릿에 무효화될 PR이 아니고, #5044에 대한 이전 grok 추천(관측성-only 좁은 PR, Google+rotation fixture)과도 맞습니다.

라인 ~114-120 (src/adapters/google-http.ts) - SendBudgetExhaustedError + pendingResponse일 때 onRecoveryWithheld({ reason: "retry-send-budget" }) 후 원 응답 반환. #5044 핵심 경로다
경로 src/adapters/base.ts onRecoveryWithheld - onPhysicalSend 형제로 둔 설계가 맞다. sendCount 의미를 지키려면 필수다
경로 src/usage/log.ts AttemptRecoveryWithheld - 어휘가 둘뿐이고 비밀·계정 id·body·exception 텍스트가 못 들어온다. normalize도 recoveryKinds와 같은 drop 규칙이다
경로 src/server/responses/{run-turn-execution,passthrough-dispatch,adapter-continuation}.ts - hop 거절 시 rotation-send-budget. “다음 계정 없음”과 구분되는 지점이다
경로 src/adapters/{command-code,mimo-free,kiro-retry,cursor/transport-retry}.ts - 아직 onRecoveryWithheld를 안 부른다. #5044 이슈 리뷰에서도 Cursor/Kiro까지 한 번에 심을지 범위로 남겨 둔 부분이다. 이번 좁은 범위와는 충돌하지 않지만, 같은 침묵 구멍이 어댑터별로 남을 수 있다
src/server/responses/adapter-continuation.ts import - ../request-log에서 noteAttemptRecoveryWithheld를 두 번째 import 블록으로 분리했다. 동작 문제는 없고 한 블록으로 합쳐도 된다
PR 체크리스트 / CodeRabbit docstring 경고 - 기능·보안 표면과 무관. 호스티드 CI 그린이 더 중요하다

메인테이너의 판단이 필요한 지점

  • command-code / mimo-free / kiro / Cursor transport-retry에도 같은 withheld 콜백을 후속으로 붙일지, 아니면 #5044는 Google+OAuth rotation만으로 닫고 나머진 별 이슈로 둘지
  • adapter-continuation의 중복 import를 이 PR에서 정리할지(필수는 아님)
  • 남은 test 4/4·macos 2/2가 끝난 뒤 바로 merge할지

너의 추천
호스티드 CI(특히 남은 test 4/4·macos)가 그린이면 merge한다. Closes #5044가 붙어 있으니 머지 시 이슈도 같이 닫힌다. 다른 어댑터 withheld는 후속 관측성 이슈로 열어 두고, 이번 PR 범위는 유지하는 편이 낫다. types/config 스플릿에 닫을 PR이 아니다.

이 댓글은 grok-bot이 작성했습니다

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