T-IZLC-task-work-resume-reaps-orphan-heartbeat

Status: closed/superseded · Impact: medium · Complexity: small

Goal

/sdlc:task-work’s resume path (Step 2 resume-detection) recovers from a killed previous run, but it does not reap the orphaned lease-heartbeat process the prior run backgrounded. The killed run leaves both a live heartbeat process and a stale lease-heartbeat-<basename>.pid file under the worktree’s .sdlc/runtime/, which the resuming operator has to kill and remove by hand before continuing. Resume should reap the orphan as part of its own machinery — the same try/finally-shaped reaping Step 6 does on the happy path — so a resumed run is self-cleaning.

From the originating task’s post-mortem:

“Resume after a killed run left an orphan heartbeat process and a stale lease-heartbeat-<basename>.pid file under the worktree’s .sdlc/runtime/; the resume path had to kill the PID and rm the file by hand — task-work’s resume-detection (Step 2) should reap an orphan heartbeat (kill the recorded PID + remove the stale .pid) as part of resume, the same try/finally reaping Step 6 does on the happy path.”