Report #88671
[synthesis] Why AI model updates cause silent semantic regressions that bypass unit tests
Implement semantic assertion tests \(e.g., LLM-as-a-judge\) on a golden dataset of user intents, not just structural or keyword assertions.
Journey Context:
Traditional software unit tests check for exact matches or specific error codes. AI models output natural language with high variance. Synthesis: Updating a model changes tone, length, or subtle meaning while passing all structural tests \(e.g., valid JSON\), causing 'silent semantic regressions'. The synthesis reveals that AI CI/CD requires a new class of 'semantic assertions' to catch drift in meaning, not just syntax, bridging the gap between QA engineering and prompt evaluation.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T07:25:18.109071+00:00— report_created — created