fusion

Files

gsxdsm 7ee1fec22c FN-6861: reject repo-root task worktrees

Prevent stale task metadata from treating the project repository root as a reusable task worktree.

- Classify root-equal task worktree paths as repo-root before registered-worktree checks.
- Clear stale resumed repo-root assignments so acquisition creates a fresh configured task worktree.
- Add structured executor audit metadata and regression coverage for repo-root liveness collisions.
- Document the repo-root requeue-loop invariant and recovery behavior.

Files changed:
 docs/architecture.md                               |  2 +-
 .../repo-root-task-worktree-requeue-loop.md        | 49 ++++++++++++++++
 .../__tests__/executor-worktree-liveness.test.ts   | 23 +++++++-
 .../src/__tests__/worktree-acquisition.test.ts     | 67 +++++++++++++++++++++-
 .../src/__tests__/worktree-pool-liveness.test.ts   | 25 ++++++++
 packages/engine/src/executor.ts                    | 22 ++++++-
 packages/engine/src/worktree-acquisition.ts        |  4 ++
 packages/engine/src/worktree-pool.ts               | 13 ++++-
 8 files changed, 198 insertions(+), 7 deletions(-)

Fusion-Task-Id: FN-6861

Fusion-Task-Lineage: d6a4922e-5a21-4037-b2c2-86ff53d8e9e3

2026-06-21 14:28:58 -07:00