# Free Sample
- **Rule (Next.js):** Server Components by default; `"use client"` only at the leaves.
- **Agent (Claude Code):** a `reviewer` subagent that runs `git diff` and ranks issues by severity without editing.
- **Debug prompt:** "Don't fix anything yet. Add logging so we can see inputs/outputs when <symptom> happens."
- **Agent tip:** tool descriptions should say WHEN to use the tool.
- **Game tip:** reuse one style prompt verbatim for every asset.