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Review regressions before expanding the test." ], "measure": "Agreement with human review, missed failures, false alarms, and evaluation cost per task.", "decision": "Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation." }, "builder_review": null, "arxiv_id": "2610.12289", "title": "TestPrism: Rethinking Test Evaluation Beyond a Single Reference", "summary": "TestPrism replaces single-reference test evaluation with a joint criterion requiring generated tests to fail the initial state, accept all valid implementations, and reject all invalid ones; TestHelix replaces single-pass test generation with heterogeneous test-and-repair synthesis, peer cross-validation, and recursive self-improvement. 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