Individual skill

reviewing-code

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Perform a thorough code review focused on correctness, maintainability, performance, and best practices.

resources/reviewing-code/SKILL.md

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Last checked: Nov 10, 2026

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# Code Review

Use this skill when the user asks for a code review, feedback on their code, or to check code quality.

## Steps

1. **Understand the change** — read the files or diff to understand what the code is supposed to do. Identify the scope (new feature, bug fix, refactor).

2. **Check correctness**
   - Does the code handle edge cases (empty input, null, zero, negative numbers)?
   - Are error states handled (try/catch, error boundaries, fallback UI)?
   - Does async code handle race conditions, cancellation, and timeouts?
   - Are there off-by-one errors in loops or array access?