fix(cursor): preserve executable tool schemas

[yansigit]

Summary

• Preserve the full executable shell contract when Cursor advertises and normalizes Codex-compatible tools, including sandbox override, justification, reusable prefix, and login-mode fields.
• Represent freeform Responses tools as one required string input instead of an empty object schema, so tools such as apply_patch and code-mode execution remain callable through Cursor.
• Add focused regression coverage for advertised protobuf schemas and both shell-normalization directions without changing execution or approval policy.

This is an adapter contract fix only. It does not grant sandbox escalation, bypass approval, execute tools, or change configuration, so no user-facing documentation update is needed.

Verification

Exact head: 37e6115c8, based on dev at be81013fab6d83ff630ca5f38e7881678a303871.

• bun test ./tests/providers/cursor/cursor-tool-definitions.test.ts — 32 pass, 0 fail.
• bun run typecheck
• bun run privacy:scan
• bun run test — exact-head full suite passed in 301.61s; all serial follow-up lanes passed.
• git diff --check refs/remotes/upstream/dev...HEAD

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.

Summary by CodeRabbit

• New Features

  • Added support for sandbox permissions, escalation justifications, approval prefixes, and login mode in command execution tools.
  • Added freeform tool input support using a required text field.
  • Preserved these execution options during command argument normalization.
  • Added validation to reject freeform tools using reserved shell-bridge names.

• Tests

  • Added coverage for command execution controls, argument normalization, reserved names, and freeform tool inputs.

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• src/adapters/cursor/tool-definitions.ts
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📝 Walkthrough

Walkthrough

Changes

Cursor tool schemas

Layer / File(s)	Summary
Execution controls and normalization src/adapters/cursor/tool-definitions.ts, tests/providers/cursor/cursor-tool-definitions.test.ts	CURSOR_EXEC_COMMAND_INPUT_SCHEMA and CODEX_SHELL_BRIDGE_ARG_NORMALIZE_SCHEMA now include sandbox_permissions, justification, prefix_rule, and login. Tests verify that normalization preserves these fields for shell_command and exec_command.
Freeform schema routing src/adapters/cursor/tool-definitions.ts, tests/providers/cursor/cursor-tool-definitions.test.ts	CURSOR_FREEFORM_INPUT_SCHEMA defines a required string input field. Freeform tools use it for advertised inputs and argument normalization. Bare exec_command and shell_command names are rejected, while namespaced names remain supported.

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

Merge Risk: ⚪ Minimal · up to ae871

Cursor tools now retain shell execution metadata and support callable freeform inputs while preserving shell-bridge boundaries. The updated behavior is covered by targeted schema and normalization tests, with no remaining merge-blocking risk identified.

Sequence Diagram(s)

sequenceDiagram
  participant CursorTool as Cursor tool
  participant ToolDefinitions as Cursor tool definitions
  participant Normalizer as normalizeArgKeys
  CursorTool->>ToolDefinitions: Request input and normalization schemas
  ToolDefinitions-->>CursorTool: Return execution or freeform schema
  CursorTool->>Normalizer: Provide cmd and execution controls
  Normalizer-->>CursorTool: Return normalized arguments with execution controls

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🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files.
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 accurately describes the primary change in src/adapters/cursor/tool-definitions.ts: preserving executable Cursor tool schemas and their shell execution fields. It is concise and specific, wh…

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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.
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Maintainers: @lidge-jun @Ingwannu

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Actionable comments posted: 1

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Inline comments:
In `@src/adapters/cursor/tool-definitions.ts`:
- Line 429: The freeform schema path must not accept reserved shell-bridge names
such as exec_command or shell_command. Update the tool normalization around the
freeform handling in tool definitions so these names are rejected or require a
namespace, while preserving their existing non-freeform shell-bridge contracts;
add a regression test covering both reserved names.

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• src/adapters/cursor/tool-definitions.ts
• tests/providers/cursor/cursor-tool-definitions.test.ts

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[lidge-jun]

리뷰 · 우선순위 70 / 80

이 PR은 Cursor 어댑터가 Codex 호환 셸/실행 도구를 광고하고 인자를 정규화할 때, 지금 dev HEAD 9fe986d84의 src/adapters/cursor/tool-definitions.ts가 빠뜨리고 있는 실행 계약 필드를 되살리는 수정이다. 현재 CURSOR_EXEC_COMMAND_INPUT_SCHEMA와 CODEX_SHELL_BRIDGE_ARG_NORMALIZE_SCHEMA에는 cmd/command, workdir, tty, yield_time_ms, max_output_tokens 정도만 있고, Codex 쪽이 이미 아는 sandbox_permissions / justification / prefix_rule / login은 없다. 그래서 Cursor 모델이 승격(escalated) 요청이나 login 셸 옵션을 보내도 스키마에 없어 잘리거나, 광고 단계에서 아예 안내되지 않는다. 같은 파일의 cursorToolInputSchema / cursorToolArgNormalizeSchema는 freeform 도구(apply_patch, code-mode exec)에 대해 tool.parameters ?? {}로 떨어져 빈 object 스키마가 나가기 쉬운데, 이 PR은 CURSOR_FREEFORM_INPUT_SCHEMA({ input: string } 필수)로 바꿔 Cursor가 freeform 본문을 한 문자열 필드로 받게 한다. 실행 정책·승인 UI·샌드박스 게이트를 바꾸지 않고 “광고/정규화 계약”만 맞추는 범위라, 지금 dev가 잡고 있는 Cursor 어댑터 계약(#399 cmd→command 정규화, freeform apply_patch 안내)과 같은 층이다. 베이스는 be81013fa라 HEAD보다 #3552 하나 뒤에 있지만, 그 커밋은 codex hard-lock이라 이 파일과 겹칠 가능성은 낮다. 초안(draft)이고 readiness 체크리스트가 아직 비어 있다.

src/adapters/cursor/tool-definitions.ts (CURSOR_EXEC_COMMAND_INPUT_SCHEMA) - sandbox_permissions enum에 require_escalated를 광고한다. PR 본문은 “실행/승인을 바꾸지 않는다”고 하지만, 모델이 이 필드를 보게 되면 승격 요청을 더 자주 낼 수 있다. 실제 게이트가 스키마와 따로 막는지 한 줄로 확인하는 게 좋다.

src/adapters/cursor/tool-definitions.ts (cursorToolInputSchema / cursorToolArgNormalizeSchema) - freeform 분기가 셸 브리지 분기보다 먼저다. code-mode freeform exec에는 의도대로 보이지만, 나중에 freeform 플래그가 붙은 셸 브리지가 생기면 승격 필드 정규화가 통째로 빠진다. 지금 카탈로그 불변조건(셸 브리지는 non-freeform)을 테스트나 주석으로 고정해 두면 안전하다.

src/adapters/cursor/tool-definitions.ts (CURSOR_FREEFORM_INPUT_SCHEMA) - additionalProperties: false가 없다. 실행 스키마 쪽은 false인데 freeform만 느슨하다. Cursor가 여분 키를 붙이는 경우가 없으면 괜찮지만, 광고 스키마 스타일을 맞출지 결정이 필요하다.

tests/providers/cursor/cursor-tool-definitions.test.ts - 스키마 shape와 normalizeArgKeys 보존은 잘 덮는다. 다만 “빈 object를 쓰던 예전 경로가 깨지는 실제 호출(protobuf 광고 → 모델 인자 → Responses 쪽)” 한 줄짜리 통합 회귀는 없다. 기존 buildCursorToolDefinitions 단언만으로 충분한지 한 번만 짚자.

베이스 커밋 - HEAD 9fe986d84(#3552) 기준으로 리베이스/재검증이 아직다. 충돌 확률은 낮아 보이지만, draft 체크리스트의 “latest dev” 항목과도 맞다.

메인테이너의 판단이 필요한 지점

• require_escalated를 Cursor 광고 스키마에 노출하는 제품 결정(모델이 더 자주 승격을 요청해도 괜찮은지)
• freeform 스키마에 additionalProperties: false를 맞출지
• draft readiness 체크리스트를 채운 뒤에만 랜딩할지, CI 초록이면 바로 ready로 올릴지

너의 추천
초안 유지한 채 HEAD 9fe986d84에 리베이스하고, 승격 필드가 실제 승인 게이트에서 여전히 막히는지 한 줄 확인한 다음, 체크리스트 채우고 ready로 올린 뒤 머지하라. types/config 분할 캠페인에 걸려 닫을 일은 없다. 범위가 좁고 회귀 테스트가 있어 랜딩 후보는 높다.

이 댓글은 grok-bot이 작성했습니다

[yansigit]

The reserved-name finding was valid and is fixed at ae871bd19. Bare freeform tools named exec_command or shell_command are now rejected before schema normalization, while ordinary/namespaced freeform tools and the existing non-freeform shell bridges retain their contracts. Focused Cursor coverage is 32/32; typecheck, privacy scan, and diff check pass. I will refresh the readiness checklist after the exact-head full-suite gate.