fix(server): handle Antigravity cancel timeouts and preserve ACP transport details - #12092
sreejithraman wants to merge 3 commits into
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…sport details - Preserve error.detail when mapping AcpTransportError so cancellation failure details are surfaced instead of dropped. - Treat process termination resulting from an interrupt timeout as a graceful interrupt settlement rather than an unhandled turn failure. - Fix workspace path check in resolveClientFilePath to support macOS symlinked temp roots.
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ApprovabilityVerdict: Not approved Macroscope's review found this PR not approvable — This production change modifies Antigravity cancellation/process lifecycle behavior and workspace file-path authorization. The unresolved findings include a critical symlink-based workspace-boundary escape and a lifecycle-state classification issue, requiring human review. Not approved because:
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughThe adapter tracks interrupted turns, handles cancellation timeouts as cancelled turns with graceful exits, preserves ACP transport error details, tightens realpath containment checks, and adds coverage for these behaviors. ChangesCancellation lifecycle
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant Client
participant AntigravityAdapter
participant ACPAgent
Client->>AntigravityAdapter: interruptTurn(threadId, turnId)
AntigravityAdapter->>ACPAgent: session/cancel
ACPAgent-->>AntigravityAdapter: cancellation timeout and connection termination
AntigravityAdapter-->>Client: turn.completed(cancelled)
AntigravityAdapter-->>Client: session.exited(graceful)
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The previously open workspace symlink escape is addressed; no actionable merge-blocking risk remains. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@apps/server/src/provider/Layers/AntigravityAdapter.ts`:
- Around line 444-461: The shutdown flow around finishSubagents and the
session.exited emit must wait for any active turn to settle and emit
turn.completed first. Synchronize this path with the existing turn-completion
mechanism, such as awaiting finishTurn under promptLock, before publishing
session.exited; preserve the current failed/cancelled status and cleanup
behavior.
- Around line 243-246: Update the allRoots containment check in the
AntigravityAdapter path validation to use only realpath-based containment via
isInsideRoot(path, root, real). Remove the resolved-based fallback while
preserving the existing allowed-roots and roots aggregation.
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apps/server/src/provider/Layers/AntigravityAdapter.test.tsapps/server/src/provider/Layers/AntigravityAdapter.tsapps/server/src/provider/acp/AcpAdapterSupport.test.tsapps/server/src/provider/acp/AcpAdapterSupport.ts
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Inline comments:
In `@apps/server/src/provider/Layers/AntigravityAdapter.ts`:
- Line 456: Update stopContext so it waits for any failed sendTurn settlement,
including its finishTurn and turn.completed emission, before emitting
session.exited; synchronize this shutdown path with the same promptLock used by
sendTurn and preserve the existing event ordering for successful turns.
- Line 245: Update resolveClientFilePath and the subsequent read/write flow to
reject an existing final path component that is a symlink before any filesystem
access, while preserving valid nonexistent write targets under the canonical
parent. Use no-follow filesystem operations where supported so the leaf cannot
be replaced between validation and access, and keep containment checks based on
the canonical parent roots.
- Line 455: Remove the interruptedTurnIds.clear() call from stopContext so
interruption state remains available while turns settle. Preserve finishTurn’s
per-turn classification and removal of IDs, including cancelled status when the
cancellation timeout fails.
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apps/server/src/provider/Layers/AntigravityAdapter.ts
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…nterrupted turn ids
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Thanks for the PR. We're not taking changes to the orchestration and provider layers right now: that part of the server is being rewritten for V2, and merging into the current code would either conflict with or be thrown away by that work. Closing for now. If this is still an issue once V2 lands, please reopen (or open a fresh PR against the new code) and we'll take a proper look. |
2 participants
When interrupting an Antigravity (
agy) turn during thinking or streaming,agydoes not servicesession/cancelor abort its Gemini stream. After 15 seconds, the cancel timeout kills the process, but the transport error's diagnostic detail was dropped and the turn was settled as a failed error rather than cancelled.Preserve
AcpTransportError.detailduring adapter error mapping, treat interrupt-induced process terminations as graceful cancellations, and allow symlinked temp workspace roots during client file resolution.gemini-3.8-flash-high via Antigravity harness
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