fusion

Files

gsxdsm c77488e0fa FN-8370: enforce isolated task worktrees

Keep branch-scoped task work in registered worktrees while the primary checkout stays on its current branch.

- Document the executor and acquisition isolation invariant.
- Add real-Git coverage for fresh, unregistered, and reused task worktrees.
- Guard task worktree creation paths against root checkout switches.

Files changed:
 .../worktree-primary-checkout-invariant.test.ts    | 133 +++++++++++++++++++++
 packages/engine/src/executor.ts                    |   7 ++
 packages/engine/src/worktree-acquisition.ts        |   5 +
 3 files changed, 145 insertions(+)

Fusion-Task-Id: FN-8370

Fusion-Task-Lineage: 5153b764-c474-4a52-823e-40b06b43d47c

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-07-19 16:13:17 -07:00