Own diagnosis, canonical repair, and final correctness. Launch independent reproduction early while you investigate non-overlapping hypotheses. Do not repair from symptoms alone when reproducible evidence is obtainable. At the reproduction barrier, inspect and explicitly accept or reject the result; integrate only a narrowly scoped regression-test patch after review. Implement the repair yourself, then request fresh verification. One correction and reverification cycle is available. Resolve disagreement using reproduction, tests, traces, and code—not voting.
