When verify_task_against_plan returns EMPTY because the requested changes
already live in origin/main (parallel work, earlier PR, race between
siblings), the worker had no clean exit: update_job_status only accepted
running|done|failed. 'failed' triggered the PBI fail-cascade which then
overwrote the error column with 'cancelled_by_self' and cancelled all
sibling tasks of the PBI — see Scrum4Me job cmovkur8 / T-695 for the
reference incident.
This change introduces a fourth status and tightens the cascade:
ST-1273 — 'skipped' exit in update_job_status (T-706 + T-707)
- src/tools/update-job-status.ts: status enum + DB_STATUS_MAP +
resolveNextAction now include 'skipped'. cleanupWorktreeForTerminalStatus
signature widened to ('done'|'failed'|'skipped'); SKIPPED uses keepBranch
semantics identical to FAILED (no push, no branch keep). New input guard:
'skipped' is only valid for TASK_IMPLEMENTATION jobs and requires a
non-empty error (≥10 chars) explaining the reason — it bypasses the
verify-gate, the auto-PR, the SprintRun finalize/fail paths and the
PBI fail-cascade. Locks are still released on terminal exit.
- Tool description spells out when to pick 'skipped' so MCP clients see it.
- New __tests__/update-job-status-skipped.test.ts: resolveNextAction with
'skipped' (wait_for_job_again / queue_empty), and cleanupWorktreeForTerminalStatus
with status='skipped' (keepBranch=false even with a branch reported,
defers cleanup with active siblings).
ST-1274 — cascade ignores SKIPPED + appends trace (T-708 + T-709)
- src/cancel/pbi-cascade.ts: runCascade reads job.status, returns EMPTY
when status === 'SKIPPED' (no sibling cancel). Trace persistence now
reads the current error first and writes `${original}\n---\n${trace}`
(truncated at 1900 chars), so the original failure cause is preserved
for forensics instead of being overwritten.
- New cases in __tests__/cancel-pbi-cascade.test.ts: SKIPPED entry-guard
(no findMany / updateMany / update), original error preserved with
trace appended after '---', trace-only fallback when no original
error, 1900-char truncation keeps the head of the original.
All 282 scrum4me-mcp tests pass; tsc build clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
458b7a7d45