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feat(FN-4200): prevent failed tasks from blocking overlap dispatch in sched

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The scheduler now excludes failed review tasks from blocking overlap dispatch, preventing stuck tasks from stalling downstream work. A CSS fix prevents the failed badge from incorrectly overriding the in-review status in the list view, with tests covering both the scheduler logic and the badge displ

Fusion-Task-Id: FN-4200
This commit is contained in:
Fusion
2026-05-12 15:21:43 -07:00
committed by gsxdsm
parent ba86e7a0de
commit 61b670acce
6 changed files with 105 additions and 7 deletions
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9
packages/engine/src/scheduler.ts
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@@ -733,12 +733,17 @@ export class Scheduler {
const filteredScope = filterPathsByIgnoreList(scope, overlapIgnorePaths);
if (filteredScope.length > 0) activeScopes.set(t.id, filteredScope);
}
// Only live in-review tasks with a worktree belong in activeScopes.
// Paused in-review tasks (e.g., failed-merge tasks awaiting human triage) cannot
// make progress, so they must not contribute to activeScopes. Including them
// make progress, so they must not contribute to overlap blockers; including them
// caused a deadlock pattern where a paused task indefinitely re-stamped
// `blockedBy` on overlapping todo tasks every scheduler tick. (FN-3867 / FN-3857)
// Permanently-failed in-review tasks from SelfHealingManager.checkStuckBudget()
// also keep their worktree, but after the stuck-kill budget is exhausted they
// will never merge, so superseding re-implementation tasks (for example FN-4177
// replaced by FN-4198) must not stay queued behind them. (FN-4200)
const inReviewWithWorktree = tasks.filter(
(t) => t.column === "in-review" && t.worktree && !t.paused,
(t) => t.column === "in-review" && Boolean(t.worktree) && !t.paused && t.status !== "failed",
);
for (const t of inReviewWithWorktree) {
const scope = await this.store.parseFileScopeFromPrompt(t.id);