Dev Guide: How to Triage CI-Rejected Agent Patches Using a Three-Class System

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A software development article published on DEV Community outlines a structured triage procedure for handling agent patches rejected by CI pipelines. The author identifies three common but flawed responses to patch failures — manual log review, blind rebuilds, and test deletion — and proposes a classification-based alternative. Every failing patch is sorted into one of three classes: deterministic regressions (Class A), fixture drift (Class B), or intermittent flakes (Class C), each assigned a specific remediation action. A companion script called triage_gate.py automates the process by re-running the failing test, comparing fixture hashes, and logging verdicts to a quarantine ledger with expiry dates. The system is designed to prevent flaky tests from being silently deleted while ensuring genuine code regressions are properly investigated.

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