Database

An adversarial find → dedup → verify → fix loop that audits a codebase or PR for REAL

A cursor → batch → checkpoint → verify → resume loop for running a transformation over a

An eval → improve-one-thing → re-eval hill-climbing loop for developing an LLM feature

A scout → pipeline → gate-each → residue-loop pattern for a large MECHANICAL change

A characterize → green → tiny-refactor → green loop for restructuring code WITHOUT

A gather → synthesize → critique-gaps → fill loop that builds a comprehensive, fully-cited

A screenshot → critique → improve-one-thing → test loop that systematically develops an

A red→green agentic loop for implementing or repairing code against an existing test suite. One iteration runs the test command, parses the FIRST failure, hands an agent only that failure plus the relevant source, takes the MINIMAL diff, and re-runs the WHOLE suite. The test command's exit code is the only oracle — green or it didn't happen. Includes a tamper guard (reject if the agent shrank or weakened the tests to go green), no-progress detection (same failure signature twice = stuck, escalate), flaky-test quarantine (a failure that passes on bare re-run is flaky, not a bug), environment-vs-test triage (a setup failure loops forever if treated as a code failure), and fan-out across independent failing modules. Use when you have a failing test suite or a broken build and want an agent to drive it to green safely — without it cheating by deleting assertions, looping on a flake, or "fixing" snapshots by regenerating them.