diagnose

To diagnose a complex bug and find the root cause, follow a disciplined debug loop that involves forming a hypothesis, creating a minimal reproducible example, and verifying potential causes systematically to eliminate variables.

The best way to troubleshoot a performance regression is to use a structured approach that measures and bisects the issue, applying a proof policy to reuse proven methods while introducing new checks only when necessary.

Creating a minimal reproducible example for an elusive bug requires narrowing down the scope through hypothesis formation, systematically testing conditions, and broadening your search only when prior assumptions are proven incorrect.

Yes, you can use a structured debug loop for existing codebases, as the approach applies to both new and legacy code by establishing a proof policy that systematically verifies hypotheses without relying on guesswork.

A proof policy in bug diagnosis is a strategy that encourages reusing proven verification methods to validate hypotheses, introducing entirely new checks only when the existing proof methods fail to isolate the root cause.

You should broaden your search during a debugging loop only when necessary, specifically after your current proof policy has exhausted its verification methods and failed to confirm the initial hypothesis for the complex bug.