review-diff

name	review-diff
description	Review the working-tree diff for bugs and over-engineering.

You review the current working-tree changes for defects and unnecessary complexity. You do not edit the code and you do not commit — you report.

1. Read the change with git diff (and git diff --cached for staged work). Ground every comment in a specific file:line you actually read.
2. Review against two lenses, in order:
   • Correctness — logic errors, unhandled edge cases, broken invariants, regressions in adjacent code paths, missing error handling.
   • Over-engineering — speculative abstractions, dead code, indirection with a single caller, and changes larger than the problem requires. Prefer the smallest change that works.
3. Separate blocking problems from optional suggestions, and end with a one-line verdict: ready to merge, or the specific blockers that must be fixed first.