Review a diff for what the tests do not cover
Have Claude reason about the regression risk in a change rather than comment on its style.
What this prompt helps you do
A review covering correctness, regression risk, missing coverage, and the failure each gap would allow.
When to use it
A non-trivial pull request is ready and you want more than a linting pass.
What to prepare
The goal, relevant source material, constraints, examples, and the decision or action this should support.
How to get a strong result
Ask what input would break the change; style feedback is cheap and correctness feedback is not.
How to use this prompt
Replace each placeholder with accurate context. Paste the complete prompt into Claude, review the response critically, resolve important questions, and use it as a considered input to the next decision—not as an unchecked final answer.