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fix(responses): scope self-named namespace scrub - #3226

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@alex-jordan547 alex-jordan547 commented Sep 1, 2026 •

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Summary

  • scope the #3217 self-named namespace scrub to bare custom tools declared and authorized by full identity in the current Responses turn
  • preserve genuine same-name namespaced tools only for the matching response item t...[truncated]
  • apply the same request-scoped authorization set to both SSE and bounded JSON passthrough responses

Follow-up to #3224, as invited in the closing comment on #3223.

Verification

  • bun run prepush — typecheck passed; main suite: 17,227 passed, 14 skipped, 0 failed
  • one unrelated serial timeout in issue-452-empty-503.test.ts passed immediately on isolated rerun
  • targeted Responses scrub, undeclared-tool guard, and passthrough suites — 201 passed
  • tool_choice regression: selecting remote__exec does not authorize a colliding bare exec scrub
  • bare-function regression: a self-named function_call for wait is scrubbed
  • reserved-namespace regression: a custom tool named functions remains bare and is scrubbed
  • mixed-catalog regression: namespaced function calls stay namespaced while bare custom calls of the same name are still scrubbed
  • sabotage check: restoring the unconditional namespace === name scrub made the new genuine-namespace regression test fail; restoring the request-scoped predicate made it pass
  • git diff --check

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.

Review readiness checklist

  • All CI tests are green on my local testing.
  • I pushed my PR to the latest dev commit.
  • I resolved all correct Codex and CodeRabbit findings.
  • My PR is ready for review.

Summary by CodeRabbit

  • Bug Fixes

    • Improved tool-call namespace handling based on tools authorized for the current turn.
    • Preserved explicitly declared namespaces, including overlapping custom and function tool names.
    • Prevented namespaced tools from being misidentified as bare custom tools.
    • Removed unauthorized self-named namespaces from streamed and JSON responses.
  • Tests

    • Added coverage for authorized namespaces, overlapping tool names, clean payloads, matching namespaces, and empty tool names.

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✅ Deterministic PR hygiene checks passed.

@github-actions github-actions Bot added bug Something isn't working review-ready labels Sep 1, 2026
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✅ READY

  • all PR quality gates passed; the review readiness checklist is complete.

Review readiness checklist

  • ✅ All CI tests are green on my local testing.
  • ✅ I pushed my PR to the latest dev commit.
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📒 Files selected for processing (4)
  • src/server/responses-self-named-namespace-scrub.ts
  • src/server/responses/collaboration.ts
  • src/server/responses/core.ts
  • tests/responses-self-named-namespace-scrub.test.ts

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📝 Walkthrough

Walkthrough

Changes

This change restricts self-named namespace scrubbing to tool calls authorized during the current turn. It derives separate custom and function name sets and applies them to SSE and bounded-JSON response rewrites.

Namespace scrub authorization

Layer / File(s) Summary
Collect per-turn tool authorization
src/server/responses-self-named-namespace-scrub.ts, src/server/responses/collaboration.ts
The tool bridge separates bare custom and function names. The scrubber derives authorization sets from current-turn declarations and excludes same-name namespaced tools.
Gate namespace scrub rewrites
src/server/responses-self-named-namespace-scrub.ts, src/server/responses/core.ts
Recursive, JSON, SSE, and bounded-JSON paths now remove namespace only for authorized matching custom or function calls.
Validate authorization-scoped behavior
tests/responses-self-named-namespace-scrub.test.ts
Tests cover declared namespace preservation, reserved functions handling, namespaced-tool precedence, item-type scoping, and matching and non-matching payloads.

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

Merge Risk: ⚪ Minimal · up to c7f73

The PR narrows self-named namespace scrubbing to tools authorized in the current response turn while keeping streaming and JSON behavior aligned. The change is localized and covered by the reported checks, so no actionable merge-blocking risk remains.

Suggested reviewers: lidge-j

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 27.27% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 11 functions across 4 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
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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.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and concisely describes the primary change: scoping the self-named namespace scrub in Responses handling.
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Comment thread src/server/responses-self-named-namespace-scrub.ts Outdated
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리뷰 · 우선순위 71 / 80

이 PR은 #3224가 dev에 넣은 self-named namespace 스크럽을 더 좁히는 후속입니다. 지금 HEAD d23eab43a (#3224, package 2.40.0)의 src/server/responses-self-named-namespace-scrub.ts는 custom_tool_call / function_call에서 namespace === name이면 카탈로그를 안 보고 무조건 namespace를 지웁니다. 주석도 “정당한 정체성이 아니다”라고 단정합니다. 그 벨트는 #3217 execexec 루프를 막는 쪽에 맞춰져 있습니다. 같은 이름의 진짜 네임스페이스 도구가 있으면 그 정체성까지 납작해질 수 있습니다.

이번 디프는 스크럽 조건을 요청 단위로 바꿉니다. 새 collectAuthorizedBareCustomToolNames가 이번 턴 body의 tools와 additional_tools / tool_search_output 안 스펙을 읽고, functions 그룹(또는 namespace 없는) bare custom 이름만 모읍니다. 같은 이름 네임스페이스(namespace === inner.name)로 선언된 이름은 따로 모아 bare 집합에서 빼서, 진짜 동명 네임스페이스는 지우지 않습니다. 마지막에 toolBridgeMaps.freeformToolNames와 교집합을 해서, 이번 턴이 승인한 freeform custom만 스크럽 대상으로 남깁니다. src/server/responses/core.ts의 SSE rewrite와 bounded JSON 경로가 같은 집합을 씁니다.

베이스는 dev이고 #3224 직후 구멍만 다룹니다. types.ts / config.ts 분할 캠페인과는 무관합니다. 닫고 다시 쌓을 대상이 아닙니다. 닫힌 #3223 본문에도 이미 “bare custom + 이번 턴 승인” 쪽으로 좁히자는 말이 있었고, 이 PR은 그 초대를 #3224의 무조건 스크럽 위에 다시 올리는 형태입니다. 로컬 prepush 초록과 sabotage 체크(무조건 스크럽을 되돌리면 새 회귀 테스트가 깨짐)를 본문에 적었습니다.

라인 7-51 (src/server/responses-self-named-namespace-scrub.ts · collectBareCustomToolSpecs / collectAuthorizedBareCustomToolNames) - bare 수집은 type === "custom"만 봅니다. functions 그룹 안의 type === "function" 이름은 승인 집합에 안 들어갑니다. 유닛 테스트의 wait dirty 케이스는 호출부가 new Set(["wait"])를 직접 넘길 때만 지워집니다. 통합 경로에서 백엔드가 function_call에 self-named를 찍으면 지금 HEAD처럼 안 지워질 수 있습니다.
라인 46-48 (collectAuthorizedBareCustomToolNames 필터 루프) - for (const name of bareNames) { … bareNames.delete(name) }로 Set을 순회 중 수정합니다. JS Set에서는 동작하지만, 새 Set으로 걸러 내는 편이 읽기 쉽고 실수도 적습니다.
라인 46-48 · authorizedFreeformToolNames.has(name) 교집합 - 승인 집합이 비면 스크럽이 사실상 no-op이 됩니다. freeformToolNames는 buildToolBridgeMaps(src/server/responses/collaboration.ts)에서 t.freeform인 파서 도구만 넣습니다. 와이어 카탈로그에는 custom이 있는데 파서/toolChoice 쪽 freeform 집합이 비면, #3217 벨트가 다시 풀립니다. HEAD의 무조건 스크럽이 막아주던 보호가 사라지는 지점입니다.
라인 89-93 (scrubSelfNamedToolCallNamespace) - 스크럽 조건에 authorizedBareCustomToolNames.has(value.name)가 추가됩니다. 승인되지 않은 self-named 모양은 이제 클라이언트까지 그대로 갑니다. 환각/미선언 도구가 execexec 루프를 다시 만들 수 있는지, 의도적으로 벨트를 느슨히 한 것인지 확인이 필요합니다.
라인 3662-3665 / 4651-4654 / 4884-4890 (src/server/responses/core.ts) - SSE와 bounded JSON이 같은 selfNamedNamespaceScrubToolNames를 쓰도록 맞춘 것은 좋습니다. 호출 인자만 바뀌고 rewrite 순서(image-gen restore → self-named scrub → routed namespace restore)는 HEAD와 같습니다.
테스트 a self-named namespace declared by the current turn is preserved - additional_tools에 namespace: "exec" + custom exec만 두고, 응답의 namespace":"exec"가 남는지를 봅니다. 동명 네임스페이스 보존 의도는 분명합니다. 반대로 “bare functions.exec만 있을 때 여전히 지운다”(기존 테스트)와 “승인 집합이 비면 지우지 않는다”를 한 줄로 대비하는 테스트는 없습니다. 벨트 완화 회귀를 잠그려면 후자가 있으면 좋습니다.
심볼 sameNameNamespacedNames - bare와 동명 네임스페이스가 한 턴에 같이 있으면 bare 쪽에서 이름이 빠져 스크럽이 꺼집니다. 진짜 네임스페이스를 지키려는 선택으로 보이지만, Spark가 동시에 잘못된 self-named를 섞어 보내면 그 잘못된 쪽도 남습니다.

메인테이너의 판단이 필요한 지점

너의 추천
방향은 맞습니다. #3224가 동명 네임스페이스까지 지울 수 있는 과잉을 고치는 후속이고, SSE/JSON 경로를 같이 묶은 것도 맞습니다. 머지 전에 (1) 승인 집합이 비었을 때 self-named가 통과하는 회귀 테스트를 하나 추가하거나, 미승인 모양은 예전처럼 지우도록 기본을 fail-closed로 둘지 짧게 결정하고, (2) Set 순회 중 delete는 새 Set 필터로 바꾸고, (3) function 타입 self-named를 이번 범위 밖으로 둘지 본문/주석에 한 줄로 명시하세요. 그다음 dev에 올리면 됩니다. types/config 분할 때문에 닫을 이유는 없습니다.

이 댓글은 grok-bot이 작성했습니다

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Comment thread src/server/responses-self-named-namespace-scrub.ts Outdated
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Actionable comments posted: 1

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Inline comments:
In `@src/server/responses-self-named-namespace-scrub.ts`:
- Around line 25-29: Update the collision-collection checks in the namespace
scrubbing logic to require namespace !== "functions" before adding entries to
sameNameNamespacedCustomNames or sameNameNamespacedFunctionNames, while
preserving bareNames collection for custom children under "functions". Add a
regression test covering a custom tool named "functions" and verify its
self-named custom_tool_call retains the "functions" namespace.
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  • src/server/responses-self-named-namespace-scrub.ts
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}
continue;
}
if (typeof spec.name !== "string") continue;

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P2 Badge Recognize nested function declarations in scrub authorization

For a supported Chat-shaped declaration such as {type:"function", function:{name:"wait"}}, parseRequest unwraps the nested function and buildToolBridgeMaps authorizes bare wait, but this collector requires spec.name and therefore records nothing. If the upstream returns the malformed {type:"function_call", name:"wait", namespace:"wait"} shape, the namespace remains and Codex resolves it as waitwait, recreating the retry loop this scrub is intended to stop. Read spec.function.name here as the parser and undeclared-tool collector already do, and cover both top-level and additional_tools catalogs.

AGENTS.md reference: src/AGENTS.md:L19-L19

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lidge-jun added a commit that referenced this pull request Sep 2, 2026
… tools (carry of #3226) (#3234)

* fix(responses): scope self-named namespace scrub

* fix(responses): preserve colliding namespaced functions

* fix(responses): honor scrub authorization identity

* fix(responses): cover function scrub edge cases

* fix(responses): read Chat-shaped function names in the scrub authorization set

buildTools accepts the Chat-shaped `{ type: "function", function: { name } }`
declaration and the undeclared-tool guard authorizes it, but the scrub's
raw-body collector only read `spec.name`. Such a function never entered the
raw-body set, the intersection dropped it, and a self-named echo for it
reached Codex again. Mirror addWireToolName and read the nested name.

Regression: Chat-shaped catalog + upstream `function_call { name: "wait",
namespace: "wait" }` is scrubbed; red without this change.

---------

Co-authored-by: Alex Jordan <60003097+alex-jordan547@users.noreply.github.com>
Co-authored-by: jun <jun@lidge.dev>
@lidge-jun

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Landed via maintainer as #3234 → b732b0d0f on dev, with your four commits cherry-picked and credited as-is. Thanks — the request-scoped authorization is the right shape, and the codex-rs ToolName reasoning for keeping a genuine same-name namespace was exactly right.

One addition on top: collectBareToolSpecs read only spec.name, so a Chat-shaped { type: "function", function: { name } } declaration (which buildTools and the undeclared-tool guard both accept) never entered the raw-body set and a self-named echo for it would have slipped through. The carry mirrors addWireToolName and reads the nested name, with a regression that is red without it.

Closing this PR as superseded by the carry.

@lidge-jun lidge-jun closed this Sep 2, 2026
@lidge-jun lidge-jun added the landed-via-maintainer Original PR closed after landing via a maintainer merge train label Sep 2, 2026
tarunravi pushed a commit to tarunravi/opencodex that referenced this pull request Sep 14, 2026
… tools (carry of lidge-jun#3226) (lidge-jun#3234)

* fix(responses): scope self-named namespace scrub

* fix(responses): preserve colliding namespaced functions

* fix(responses): honor scrub authorization identity

* fix(responses): cover function scrub edge cases

* fix(responses): read Chat-shaped function names in the scrub authorization set

buildTools accepts the Chat-shaped `{ type: "function", function: { name } }`
declaration and the undeclared-tool guard authorizes it, but the scrub's
raw-body collector only read `spec.name`. Such a function never entered the
raw-body set, the intersection dropped it, and a self-named echo for it
reached Codex again. Mirror addWireToolName and read the nested name.

Regression: Chat-shaped catalog + upstream `function_call { name: "wait",
namespace: "wait" }` is scrubbed; red without this change.

---------

Co-authored-by: Alex Jordan <60003097+alex-jordan547@users.noreply.github.com>
Co-authored-by: jun <jun@lidge.dev>
agentHits pushed a commit to agentHits/opencodex that referenced this pull request Sep 17, 2026
… tools (carry of lidge-jun#3226) (lidge-jun#3234)

* fix(responses): scope self-named namespace scrub

* fix(responses): preserve colliding namespaced functions

* fix(responses): honor scrub authorization identity

* fix(responses): cover function scrub edge cases

* fix(responses): read Chat-shaped function names in the scrub authorization set

buildTools accepts the Chat-shaped `{ type: "function", function: { name } }`
declaration and the undeclared-tool guard authorizes it, but the scrub's
raw-body collector only read `spec.name`. Such a function never entered the
raw-body set, the intersection dropped it, and a self-named echo for it
reached Codex again. Mirror addWireToolName and read the nested name.

Regression: Chat-shaped catalog + upstream `function_call { name: "wait",
namespace: "wait" }` is scrubbed; red without this change.

---------

Co-authored-by: Alex Jordan <60003097+alex-jordan547@users.noreply.github.com>
Co-authored-by: jun <jun@lidge.dev>
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