grok N1: the wrapper spent up to 5 s on a TERM budget before it finalized the
job, so when the watcher swallowed the TERM the silent job's close came ~5 s
late and a `completed` written in that gap won (test_issue14 idle-grace).
codex D1: `_notify` blocks on a publish for up to 120 s, and the prompt went
out right after it; a completed, a re-dispatch or an unreadable record in that
window still got the nudge. codex D2: the wrapper pid was checked only at the
loop head, so a watcher whose wrapper vanished during a wait could still
notify and nudge once.
- multi-agent-mux-delegate-job `stop_stall_watch`: KILL + wait, no budget.
The watcher holds nothing to flush (its TERM handler is a bare os._exit),
and KILL cannot be swallowed.
- lib_py/stall_watch.py: `_wrapper_gone()` after every wait (before any
notice) and at the loop head; `_may_prompt()` right before the keys - the
wrapper is alive and the record, read then, is open and this dispatch;
`_dispatch_open(strict=True)` treats an unreadable record as "no".
- SKILL.md: the lifetime contract states the one-wait lag and that nothing is
sent after the wrapper is seen gone.
- tests/test_issue30_stall_watch_stop.py: the stop returns at once against a
TERM-ignoring stand-in (took 6 s on the round-2 code); completed,
re-dispatch and a torn record during the notice publish withhold the nudge;
a wrapper gone during the wait gets no notice and no nudge. All five fail
on the round-2 code.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff
Round-1 review of PR #41 (claude N1, codex R1/R2).
N1 - the wrapper stopped its stall watcher with `kill` followed by an
unbounded `wait`. A TERM that lands in the watcher's fork-exec window is
swallowed (bash defers terminating signals in the forked child until the
exec), the watcher then installs its own handler and lives until the job
closes, and the wrapper hung until someone killed the watcher by hand
(reproduced twice in test_issue14's ack test; the wrapper trace stops at
`kill` + `wait`).
R1 - a wrapper that is itself terminated left the watcher orphaned.
R2 - a `completed` or a re-dispatch that landed during a blocking herdr
wait (up to 60 s) was still followed by the idle notice and the nudge.
- multi-agent-mux-delegate-job: `stop_stall_watch` sends TERM, polls up
to 5 s, then KILLs and reports "ignored TERM; killed"; `start_stall_watch`
passes `--watch-pid $$`.
- lib_py/stall_watch.py: `--watch-pid` (rc 0 once that pid is gone, checked
between herdr calls); `_dispatch_open()` re-reads the record after every
wait and right before the nudge - terminal status, another dispatch token
or attempt, or a missing record ends the run without a notice; a refused
`stalled:idle` publish withholds the nudge (`_notify` returns False).
- delegate-job SKILL.md: the watcher's lifetime contract; exit-code rows 2
and 3 name the idle clock and the wall-clock label; "before v4.7.5" ->
v4.8.0 (M5, NB2).
- tests/test_issue30_stall_watch.py (M8): the module-wide Linux mark is
narrowed to S6 (/proc); r4's stub stamps time.time() so its cross-process
comparison holds on macOS too (47 passed, 1 skipped here).
- tests/test_issue30_stall_watch_stop.py (new, macOS and Linux): the stop
routine against a TERM-ignoring stand-in returns in 4-12 s; the wrapper
returns (rc 3) with a TERM-ignoring watcher shim; `--watch-pid` ends the
watcher; a TERM to the real wrapper leaves no watcher; a job completed or
re-dispatched during the wait is not nudged; a refused notice withholds
the nudge. Every one of them hangs or fails on the round-1 code.
Not in this commit (follow-ups): M7 test hook in product code (no adapter
is unreliable, a seam is needed), M9/B3 public-broker latency (on this host
even `started` sometimes never reaches the subscriber), the leading-zero
budget parse (NB1) and M1/M2/M4/M6 go on the #17 item 4 list.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff
GodopuandClaude Opus 5.5