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fix(webhook): claim, lease and log every object in a coalesced batch - #919
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The dispatcher exports only the newest event's meta, so a batch holding several assignments seeded a claim, lease and spawn-log entry for the last object alone (#887). agent-box-webhook-spawn now reads an optional LOCAL_WEBHOOK_SPAWN_METAS array (one meta per surviving event; upstream ask: local-channels#101), claims the union of the objects, names them all in the note, and records an `objects` list in the lease and the spawn log. Without the variable, or with an unusable one, the single meta behaves exactly as before. Not done here: per-object disposition that survives `rm` (the second comment on #887) and split-before-spawn; both need a design decision. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RWWyHRhpJYRa9fKq1Qnpwi
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Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation | Resolution |
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| Docstring Coverage |  |
Docstring coverage is 30.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 3 files. (6 skipped: … | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title clearly and concisely describes the primary change: claiming, leasing, and logging every object in a coalesced webhook batch. Description check The description directly explains the coalesced-batch handling, fallback behavior, lease and log changes, tests, and deferred work. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
Full details: Docstring Coverage
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Explanation
Docstring coverage is 30.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 3 files. (6 skipped: 6 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
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Actionable comments posted: 2
- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @modules/src/webhook-spawn.sh:
- Around line 778-780: Update the condition that appends objects to note so it
also lists an object when a multi-event batch contains an identified object
absent from the newest event’s note, even if objects has only one entry.
Preserve the existing behavior for batches with multiple objects.
- Around line 733-736: Update the batch metadata normalization in the JQ
invocation to slurp stdin and accept input only when it contains exactly one
valid batch array that meets the existing size and object checks; otherwise use
the LOCAL_WEBHOOK_SPAWN_META fallback. Ensure empty or whitespace-only input and
multiple JSON values cannot produce missing or multiple outputs.
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📒 Files selected for processing: 9
modules/agent-box.nixmodules/src/lib/lease.shmodules/src/webhook-spawn.shtests/golden/vm/payloads/agent-box-agent-mark-stoppedtests/golden/vm/payloads/agent-box-session/bin/agent-box-sessiontests/golden/vm/payloads/agent-box-supervisor/bin/agent-box-supervisortests/golden/web/payloads/agent-box-robot-mark-stoppedtests/golden/web/payloads/agent-box-webhook-spawn/bin/agent-box-webhook-spawntests/test-webhook-spawn-claim.sh
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…ject Review findings on #919: whitespace-only or two-array LOCAL_WEBHOOK_SPAWN_METAS bypassed the single-meta fallback, and an earlier object beside a newest event that names none was claimed but not named in the note. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RWWyHRhpJYRa9fKq1Qnpwi
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No. Coalescing is specific to github webhooks. We should spool events separately: events for one repo/pr/issue should not get combined with events for another repo/pr/issue. Of course, a session might be subscribed to multiple events, in which case events get delivered to the same session, but this relies on an explicit subscription. There's an optimization where we coalesce events from same PR or issue, but I'm not sure whether that's worth it. As it stands, the spool has very little overhead. |
Symptom (#887): a coalesced webhook batch with several assigned objects seeded the ownership claim, the lease and the spawn log for the newest object only. The earlier objects stayed unclaimed until the model repaired it.
What changes
webhook-spawn.shreads an optionalLOCAL_WEBHOOK_SPAWN_METASarray (one meta per surviving event). The claim is the de-duplicated union of each event's own claim; the note lists every object.objectsarray (objectstays the newest number, so readers keep working).recentHookSessionsshows them.LOCAL_WEBHOOK_SPAWN_META, byte-identical to before. A batch of one is unchanged.Not in this PR (so #887 stays open)
agent-box-session rm(the partial-completion case in the 2026-10-23 comment).rmstill clears the lease unconditionally; fixing that needs a design choice (disposition file vs refusingrmwith unresolved objects, or splitting batches).Checks
module-generated-up-to-date,golden-snapshot,webhook-spawn-claim(new cases: 4-object batch with a duplicate, number+sha mix, four unusable METAS inputs, lease and log contents),one-spec-both-backendson aarch64. Regenerated module and golden payloads.Refs #887.
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