Bounds durable-agent heartbeat worktree acquisition to a fixed retry count instead of requeuing to todo indefinitely across heartbeat cycles.
- Add MAX_HEARTBEAT_WORKTREE_ACQUISITION_RETRIES (3) in agent-heartbeat.ts, reusing Task.recoveryRetryCount as a cross-heartbeat counter (no schema migration)
- On cap exhaustion, terminally mark the task status:"failed" with an explanatory error, log the entry, and reopen to todo with preserveStatus so the failed status isn't wiped by reopen-to-todo semantics
- Add onTaskAcquisitionExhausted callback wired in in-process-runtime.ts to CentralCore.recordTaskCompletion(taskId, false) so exhausted acquisitions count toward totalTasksFailed
- Add regression tests in agent-heartbeat-worktree.test.ts and in-process-runtime.test.ts covering the retry cap and completion recording
- Add changeset (patch) and a docs/solutions/logic-errors writeup documenting the investigation and other worktree-collision sub-gaps found not to reproduce on HEAD
Files changed:
.changeset/fn-7721-worktree-heartbeat-retry-cap.md | 7 ++
docs/solutions/logic-errors/heartbeat-worktree-acquisition-unbounded-requeue.md | 84 ++++++++++++++++++++++
packages/engine/src/__tests__/agent-heartbeat-worktree.test.ts | 58 +++++++++++++++
packages/engine/src/__tests__/in-process-runtime.test.ts | 11 +++
packages/engine/src/agent-heartbeat.ts | 72 ++++++++++++++++++-
packages/engine/src/runtimes/in-process-runtime.ts | 12 ++++
6 files changed, 242 insertions(+), 2 deletions(-)
Fusion-Task-Id: FN-7721
Fusion-Task-Lineage: caad671c-f360-4c1c-8aaa-5b48fca5a55b
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
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