Three-Lane Local Review Gate Proposed to Filter Agent Patches Before CI Hosts

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A software development proposal outlines a three-lane local review process designed to screen agent-generated code patches before they consume shared evaluation host resources. The first lane checks whether a behavioral contract has been broken using deterministic, offline property tests run against pure functions with a fixed seed. The second lane verifies that fixture files have not changed without a corresponding update to a locked SHA-256 digest. The third lane determines whether any failing assertion is a known unstable test covered by an unexpired freeze, rather than a new regression. The author emphasizes that the three lanes are not interchangeable, as a passing test suite can still conceal contract breaks if fixtures were rewritten or property checks were skipped under a freeze.

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