Use this skill when:
- **Writing new code**: To ensure high quality from the start.
- **Reviewing Pull Requests**: To provide constructive, principle-based feedback.
- **Refactoring legacy code**: To identify and remove code smells.
- **Improving team standards**: To align on industry-standard best practices.
- You are ready to open a pull request and need a structured description based on the committed branch diff.
- You want the PR body to capture what changed, why it changed, and any reviewer context.
- You are using GitHub CLI and need a repeatable PR-writing workflow rather than writing the description ad hoc.
