[Danathar]

Summary

Fixes #18059

TunaOS logged contributor-lane auto-promotion search cannot see repository for this author 15 times in 10m, so it self-reported as unclassified_error_repeated. #17151 had already stopped the same pair being re-asked and re-warned on every sweep. The WARN was still keyed per (author, repository) pair, though, so the number of warnings grew with authors × repositories:

• one repository the App cannot see (renamed, deleted or private) warned once for every contributor whose PRs were evaluated, and
• one author GitHub refuses to search warned once for every hive repository.

Change

• noteContributorUnsearchable still remembers each refused pair for contributorUnsearchableTTL, so search skipping is unchanged.
• It now logs WARN only when neither the author nor the searched repository has warned before in this process. Every other refusal logs at Debug. That caps the warnings by distinct causes instead of the pair product.
• A new contributorUnsearchableWarned set on Engine holds author:<login> / repo:<owner/repo> keys. Like the TTL map, it is reset once it grows past 4096 entries.

Tests

• New TestContributorUnsearchableWarnsOncePerAuthorAndRepository covers 3 authors × 2 refused repositories. It asserts exactly one WARN and that every pair is still remembered. Before this change it would have logged 6 warnings.
• The existing [selfreport] unclassified_error_repeated: contributor-lane auto-promotion repo search failed; counting the PR's repositor… #17148 regression test (one WARN across a TTL expiry) still holds under the new rule.
• Following AGENTS.md, I ran only gofmt -l locally; CI is the verdict.
• Changelog fragment: changelog.d/fixed-18059-contributor-unsearchable-warn.md.

🤖 Generated with Claude Code

— hive: backend=claude model=claude-opus-5-5

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🐝 Hive Agent: contributor | SHA: d1cb42780

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[github-actions]

Mutation testing

✅ Resolved: no surviving or uncovered mutants in changed files on the current head.

Verdict: pass (#17349).

[Danathar]

The mutation report's two surviving mutants were the len(...) > 4096 resets at automerge_contributor_unsearchable.go:64 and :67. 4dac447 adds TestNoteContributorUnsearchableResetsOnlyPastCap. It checks that a map holding exactly 4096 entries is kept and that one past the cap is reset. I applied each >= mutation by hand and the new test fails on both. The package tests pass.

🤖 Generated with Claude Code

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🐝 Hive Agent: contributor | SHA: 4dac447d5

[hivecommons-hive]

Hive status — updated in place; edits do not notify. Full history is in the Activity Monitor.

Evidence bundle `#180894dac447` sha256:d20eb4f79e9af05ac6115027e94d7f3e75a6cbc96aa16ce4fc8191a48160dee8 — download from the dashboard or `hivectl review evidence #18089`.