Task 19 gave every board the same truth; this makes exactly one of them
react to it. State syncs; reactions don't.
- watch.py: attribution is now the trigger gate. _actor returns (who,
remote), and a move a pull applied — the arrivals sync files — renders
and narrates but opens no PR. A plain mv on this disk still acts: inert
means "happened elsewhere", not "unattributed".
- github.py: the file-carried gates behind that rule, so the rare double
is harmless rather than loud. The **PR:** line commits itself in team
mode (taskfiles.commit_edit, sharing the move's pathspec-scoped commit),
so it reaches the other boards instead of sitting in one working tree —
where it would also stall sync outright; and a `gh pr create` that races
anyway adopts the PR GitHub already holds.
- No board finishes the actor's half-done side effect on its own: the
startup reconcile stands down in team mode and a review card with a
branch and no PR carries ↑ open PR (POST /api/pr/open), which is a
person deciding rather than N boards guessing. _open_pr raises its
reasons now, so the automatic path narrates them and the explicit one
toasts them.
- agents.py: the claim gates work launches. A card someone else holds
refuses, naming them; ▸ take over is the deliberate second path (armed
like everything that costs tokens) and reassigns via taskfiles'
set_assignee; an unheld card claims itself on launch. Only in team mode
— with BOARD_COMMIT_MOVES off nothing writes an assignee, so nothing
reads one as a lock.
- github.complete_task: with BOARD_SYNC on, merge & clean up runs
`gh pr merge` and lets the beat deliver the result, so local main only
ever fast-forwards and no board makes a merge commit of its own. A
branch without a PR is refused with a pointer to ↑ open PR. Sync off
keeps the local merge path exactly as it was.
Verified with tests/test_actor_acts.py: two real clones of a real bare
upstream and a stub gh — the replica that only renders, the PR line that
travels, the double that adopts, the takeover that reassigns, and both
merge paths.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>