Proofloop Optimizes AI Coding Tests, Inspired by Meta's 'JIT Catching'
kevinkern · x · 2026-08-12
A developer noted that letting an AI agent run for a few hours can easily generate 800+ tests. Inspired by Meta's JIT catching concept, they open-sourced Proofloop.
The tool's core philosophy is to 'catch aggressively, commit reluctantly.' It addresses the issue of AI coding assistants permanently leaving behind numerous temporary tests, probes, and diagnostic scripts. Proofloop makes these ephemeral by default, retaining a test only if it protects a unique, observable behavior not already covered by existing tests.
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