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hive-c0re: close build-log rows a dead process left in flight

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A build_logs row is opened with finished_at NULL and closed only by the
process that runs the build. If hive-c0re stopped in between, the row stayed
open for good: the dashboard listed it with no status, its log stream never
sent `done`, and the retention sweep, which skips open rows, never deleted it.

Coordinator::open now closes every open row as `fail` and appends a line
saying hive-c0re stopped. It runs before this process starts any build, and
only there: BuildLogs::open itself leaves rows alone so a second opener can't
close another process's live rows.
This commit is contained in:
atlas 2026-10-10 20:00:11 +02:00 • committed by mara
commit 466e32b69f
3 changed files with 98 additions and 0 deletions
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5
docs/agent-lifecycle/persistence.md
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@ -209,6 +209,11 @@ Writes are best-effort: `append_stdout` / `append_stderr` / `finish`
log a warning on sqlite error and let the build continue. A failed
log row never blocks a rebuild.
A row is open (`finished_at IS NULL`) only while its child runs. At startup
`Coordinator::open` closes every row still open as `fail` and appends a
line saying hive-c0re stopped: the previous process died mid-build, and
the retention sweep never deletes open rows.
### `/harness/hyperhive-model` (per agent)
Single-line text file holding the claude model name currently