5 Claude Code Settings to Change First: /init, Plan Mode, /effort, Hooks, Auto Mode

/init

# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Commands

- Run server: `npm start` (listens on port 3000; `GET /health` returns `ok`, everything else 404)
- Run all tests: `npm test` (uses the built-in `node --test` runner; no tests exist yet)
- Run a single test file: `node --test path/to/file.test.js`
- Format: Prettier is a devDependency but has no script or config; run `npx prettier --write src`

## Architecture

Minimal ESM Node app with no framework and no runtime dependencies. The entire app is a single
`node:http` server in `src/server.js`. There is no lint setup, build step or router yet.

## Rules
- Run `npm test` before saying a task is done.
- Never edit files in `migrations/`.
- Ask before adding a new dependency.

Set this project's default permission mode to plan in .claude/settings.json. Keep every setting already in that file. Show me the final file.

Add a PostToolUse hook to this project's .claude/settings.json that runs Prettier on every file the Write or Edit tool changes. It must work on my operating system without installing anything new (no jq). Keep any settings already in that file. Show me the final file.

import http from 'node:http'
const server = http.createServer((req,res)=>{ if(req.url==='/health'){res.end('ok');return}
res.statusCode=404;res.end() })

import http from "node:http";
const server = http.createServer((req, res) => {
  if (req.url === "/health") {
    res.end("healthy");
    return;
  }
  res.statusCode = 404;
  res.end();
});