fix(factory): surface persistent empty discovery - #406
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📝 WalkthroughWalkthroughGitHub issue discovery now records source-specific repository and path counts, reports absorbed enumeration failures, and tracks persistent zero-candidate sweeps. Readiness diagnostics expose these values and raise an alarm after three successful empty sweeps. ChangesDiscovery and readiness telemetry
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to The change improves empty-discovery diagnostics, but a failed discovery can still be reported as successful and a later deferred sweep can retain an outdated failure marker. These bounded correctness and diagnostic issues should be fixed or explicitly accepted before merging. Sequence Diagram(s)sequenceDiagram
participant GitHubIssueEnumeration
participant DiscoverySourceCounters
participant ReadinessReconciliation
participant Diagnostics
GitHubIssueEnumeration->>DiscoverySourceCounters: record source, empty-repository, and path counts
GitHubIssueEnumeration->>DiscoverySourceCounters: record issue-listing-failed when listing is absorbed
DiscoverySourceCounters->>ReadinessReconciliation: provide current sweep results
ReadinessReconciliation->>Diagnostics: publish source metrics and zero-candidate alarm state
Suggested reviewers: Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2 files. (2 skipped: 2 too large.) ✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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All reported issues were addressed
Not reviewed (too large): src/orchestrator/factory.test.ts (~8,500 lines) - if these are generated or fixture files, add them to ignored paths to exclude them from future reviews.
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All reported issues were addressed across 4 files (changes from recent commits).
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Gate ruling from factory-lead-r4 — P1 dismissed with evidence, P2 blocks mergeThe P1 ("Restore the truncated FactoryLoop test source") is a FALSE POSITIVEEvidence, all checkable:
The likely cause of the false positive is worth recording, because it will recur. No action needed on the P1. Please do not "restore" anything — the file is intact on this branch. P2 blocks the merge, and it is a correctness bug in the alarm itselfconst configuredEmptySweep = report.pulled.length === 0 &&
(report.discoverySources?.configuredRepos ?? 0) > 0A discovery pass that fails with a backend error also produces That inverts the purpose of this PR. The whole reason this instrument exists is that Factory dispatched nothing for three-plus days while every sweep reported healthy — a signal that read fine while measuring nothing. An alarm that cannot distinguish "discovery failed" from "discovery found nothing" reintroduces the same ambiguity one layer up, and it will fire loudest exactly when the backend is already struggling. Preserve the discovery failure and exclude failed passes from the streak. A failed sweep is neither empty nor healthy; it is unknown, and unknown must not accumulate toward an emptiness alarm. P3 is minor but should land in the same change
Still outstanding, and the reason I have held this PRThe reverted-source ablation has not been supplied. Passing tests are not an ablation. What I need: revert source commit Checks are green and mergeable is CLEAN, but a green rollup is not the absence of feedback — that has now been true three separate times on this repo today. Holding on P2 and the missing ablation, not on the P1. |
Review triage — factory-lead, 2026-08-31Three unresolved threads. I checked each against head 1. STALE — codex P1,
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`#githubIssuePaths` absorbs an ordinary GitHub backend error -- it rethrows only a pass-wide relayfile fault -- and returns no paths, after the per-repo `configuredRepos` counter has already been incremented. The sweep therefore settled with `pulled: []` and `configuredRepos > 0`, which is exactly the shape `#recordReadinessSweepOutcome` reads as a successful zero-candidate sweep. Three of those in a row raised the persistent-empty-discovery alarm: an alarm about discovery finding nothing, fired by discovery never having looked, on the very surface #406 added to make empty discovery legible. Record the absorbed failure on the sweep (under the same lease-epoch guard the source counters use), carry it on the report as `discoveryFailed`, and give it the treatment a deferred pass already gets -- the prior enumerating pass's numbers stay put, and the zero-candidate ladder is untouched. The marker is published on the authenticated readiness status only; the unauthenticated public-health projection and its allowlist are unchanged. Tests: a must-fire case drives four absorbed enumeration failures through a live daemon and asserts the alarm never fires; a must-not-fire control runs the same harness with the single variable flipped -- discovery succeeds and genuinely finds nothing -- and asserts the alarm still fires once. Without the product change the must-fire case fails on `alarms()` being 1. Also stop the #402 alarm test's daemon in the `finally` (guarded): its `stop()` sat at the end of the `try`, so a failing assertion left the daemon running its 25ms reconcile timer while the `finally` only removed the temp dir. Measured directly -- with an assertion injected after `start()`, the abandoned daemon completed 14 further reconcile sweeps in the following 500ms; with the stop hoisted, zero. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CbZ151BwEkGUM3jbvw6Hkx Session-Id: d4188575-0b76-47bc-88c3-49663dde2a76
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Inline comments:
In `@src/orchestrator/factory.ts`:
- Around line 6268-6286: Update `#recordReadinessSweepOutcome` so the
discoveryDeferred branch clears `#readinessReconcileLastSweepFailed` before
returning, ensuring markers describe only the latest pass. Also update the
hard-failure catch in `#reconcileReadyIssues` to clear
`#readinessReconcileLastSweepFailed` alongside the existing deferred-marker reset.
In `@src/types.ts`:
- Line 857: Update exitCodeForIterationReport and exitCodeForLoopReports to map
discoveryFailed to FACTORY_EXIT.FAILED rather than OK, while preserving existing
mappings for error and discoveryDeferred. Add regression coverage for both
run-once and loop results containing discoveryFailed.
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src/orchestrator/factory.test.tssrc/orchestrator/factory.tssrc/orchestrator/sweep-counters.test.tssrc/types.ts
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All reported issues were addressed across 3 files (changes from recent commits).
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Two findings from CodeRabbit's review of the previous commit.
Both readiness markers describe THE most recent pass, so they must never be
publishable together -- a sweep cannot have both failed to enumerate and
deferred to another owner's lease. The deferred branch of
`#recordReadinessSweepOutcome` did not clear the new failure marker (the
reverse reset already existed), and neither did `#reconcileReadyIssues`'s
hard-failure catch, which already clears the deferral marker for exactly
this reason. Both now reset it.
`exitCodeForIterationReport` / `exitCodeForLoopReports` inspected only
`error` and `discoveryDeferred`, so an absorbed discovery failure exited 0 --
the false success this contract exists to remove. It now classifies as
RETRYABLE rather than FAILED: the sweep is still standing and recorded no
error, and RETRYABLE is already defined as "a capacity/dependency hold that
clears on its own", which is what a GitHub backend fault is. The loop form
joins the existing every()-test, so one failed sweep among healthy ones
stays OK and only a loop that enumerated nothing at all reports retryable.
Ablations, with the tests kept and only the product code reverted:
deferred-branch reset removed -> "expected 'issue-listing-failed' to be
undefined" (the stale marker published beside the deferral)
exit-codes.ts reverted -> "expected +0 to be 3", both new cases
Restored: 16/16 sweep-counters, 20/20 exit-codes, 114/114 across the four
touched suites, tsc and featuremap clean.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CbZ151BwEkGUM3jbvw6Hkx
Session-Id: d4188575-0b76-47bc-88c3-49663dde2a76
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cubic, P2. `#githubIssuePaths` serves two roles, and the marker added in f8ecff7 did not distinguish them. On a linear-source workspace it is also reached from `#ingestGithubIssues`, which only hydrates the GitHub mirror -- the sweep's actual candidate enumeration is the Linear tree and can still return work. A failed mirror listing therefore marked the sweep failed, and `#recordReadinessSweepOutcome` returned early on a sweep that had found and dispatched an issue: its counts were never recorded and the zero-candidate streak was never reset, so the alarm could fire for a workspace that is dispatching. Exactly the defect this PR exists to prevent, reintroduced through the back door. Only the sink enumeration -- `#readyIssuePaths` on a github-source workspace -- may now set it, via an explicit `sinkEnumeration` option. Ablation with the scoping reverted and the test kept: AssertionError: expected { state: 'healthy', …(9) } to match object { candidates: 1, dispatched: 1 } so the sweep that dispatched real work was indeed never recorded. Also cubic P3: `stop()` has no early-return guard, so the unconditional guarded stop in each `finally` made every passing run pay a second full shutdown (draining agents, releasing leases, persisting cancellation blocks) on four factories. Each try-side stop now sets a flag and the `finally` net runs only when the try did not get that far -- keeping the unguarded happy-path stop, so a genuine shutdown fault still fails. 17/17 sweep-counters, 115/115 across the four touched suites, tsc, build and featuremap all clean. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CbZ151BwEkGUM3jbvw6Hkx Session-Id: d4188575-0b76-47bc-88c3-49663dde2a76
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Summary
status().readinessReconcileAlarm policy
Threshold: 3 consecutive successful enumerating sweeps with configured repos and zero candidates.
The warning fires only when the streak crosses 3, not on every later empty sweep. Status remains active and the streak continues to increase until any sweep finds a candidate. Three intervals suppress transient empty reads, while a one-shot warning prevents a legitimately resting workspace from continuously paging/logging.
Tests
npm run buildnpm test -- --run src/orchestrator/sweep-counters.test.ts --maxWorkers=1 --no-file-parallelism— 13 passedAblation
With only
src/orchestrator/factory.tsrestored toorigin/mainand the new tests retained: 11 passed, 2 failed. Both failures reportdiscoverySourcesas absent, proving the source classification and silent-cache signal are supplied by this change. Restored implementation: 13 passed, 0 failed.Task 2 is tracked separately in #404; this PR intentionally does not change
#issueSource().Summary by cubic
Fixes silent empty discovery in the factory orchestrator by publishing per-sweep discovery-source counts and raising a one-shot warning after three consecutive zero-candidate sweeps. Failed GitHub enumerations no longer count toward the streak, so an alarm about finding nothing never fires from discovery that never looked.
Behavior
status().readinessReconcilenow reports zero tree reads, source-backed repo and path counts, the consecutive zero-candidate streak, the alarm threshold, and whether the alarm is active.IterationReportgains adiscoverySourcesbreakdown separating index-backed, durable-cache-backed, and fresh-tree-backed repositories, each with empty counts.discoveryFailed: 'issue-listing-failed', leaves the prior sweep's numbers and the zero-candidate ladder untouched, and now exits RETRYABLE instead of OK.Written for commit bd63aee. Summary will update on new commits.