#5 root cause (reproduced): getTask — the shared load for the entire per-task
API — plus the mutation helpers updateTaskUnlocked, updateStep,
readPromptForArchive, and resetPromptCheckboxes all read PROMPT.md unguarded.
An unreadable PROMPT.md (root-owned from a prior `sudo` run -> EACCES, PROMPT.md
being a directory -> EISDIR, transient FS error) threw and 500'd every per-task
operation (GET/DELETE/PATCH/retry/reset/archive) for every task, while the
PROMPT.md-free board list and create kept working. These reads are now
best-effort: degrade (empty prompt / unsynced steps / skipped cosmetic sync)
and log, so a PROMPT.md hiccup can never brick task management. Added a symptom-
verification test that forces EISDIR and asserts getTask/updateTask/archiveTask
still succeed.
#10c: the dashboard badge-snapshot cache only evicted on hard-delete, so
archived tasks were re-cached via task:updated and retained for the daemon's
lifetime — a slow memory leak. New isBadgeEligibleTask predicate gates the
create/update listeners so archived tasks are evicted (matching the startup
prime's includeArchived:false). Added a unit test for the invariant.
Updates the #5 changeset to cover the real fix; adds a badge-eviction changeset.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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