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test: gate each package's mutation score on its measured baseline - #69

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chore/mutation-break-thresholds
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chore/mutation-break-thresholds

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@Mearman Mearman commented Oct 12, 2026

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Each package's stryker.config.ts now passes a breakThreshold, derived by breakThresholdFromBaseline from the counts the mutation run on main after the runner fix measured for that package. A change that loses a kill now fails the package's shard instead of passing at any score.

Counts come from the per-package mutation reports uploaded by that run. process-graph-sqlite-wasm has no Stryker config and is unchanged.

Closes #43

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🔒 Security Review ✅ Completed 2026-10-12T15:14:28.095871Z 44f5c6a Manual request
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Mearman force-pushed the chore/mutation-break-thresholds branch from 1e5cb4f to d6f3b1b Compare October 12, 2026 15:05
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🛡️ Codex Security Review

Security review completed. No security issues were found in this pull request.

Reviewed commit: d6f3b1b86a

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Each package's Stryker config now passes `breakThreshold`, derived by
`breakThresholdFromBaseline` from the counts a completed mutation run on `main` measured for it,
so a change that loses a kill fails the run instead of passing at any score.

Refs #43
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Mearman force-pushed the chore/mutation-break-thresholds branch from d6f3b1b to 44f5c6a Compare October 12, 2026 15:10
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🛡️ Codex Security Review

Security review completed. No security issues were found in this pull request.

Reviewed commit: 44f5c6a613

View security finding report

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ℹ️ About Codex security reviews in GitHub

This is an experimental Codex feature. Security reviews are triggered when:

  • You comment "@codex security review"
  • A regular code review gets triggered (for example, "@codex review" or when a PR is opened), and you’re opted in so security review runs alongside code review

Once complete, Codex will leave suggestions, or a comment if no findings are found.

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Mearman merged commit 63c9f3d into main Oct 12, 2026
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Mearman deleted the chore/mutation-break-thresholds branch October 12, 2026 16:45
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Mutation testing reports mutants as survived that unit tests cover

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