Configuration Intermediate

{
  "permissions": {
    "allow": [
      "Read",
      "Glob",
      "Grep",
      "Bash(npm test)",
      "Bash(npm run lint)"
    ],
    "deny": [
      "Bash(rm -rf)",
      "Bash(sudo *)"
    ]
  },
  "model": "claude-sonnet-4-20250514",
  "theme": "dark"
}

# My Project

## Tech Stack
- React 18 with TypeScript
- Express.js backend
- PostgreSQL with Prisma ORM
- Jest for testing

## Conventions
- Use functional components with hooks
- Named exports only (no default exports)
- Use Zod for runtime validation
- All API routes return { data, error } shape
- camelCase for variables, PascalCase for components

## Commands
- `npm run dev` - Start development server (port 3000)
- `npm test` - Run all tests
- `npm run test:watch` - Run tests in watch mode
- `npx prisma migrate dev` - Run database migrations

## Important Notes
- Never modify files in src/generated/ (auto-generated by Prisma)
- The database schema is in prisma/schema.prisma
- Environment variables are in .env.local (never commit this)

{
  "permissions": {
    "allow": [
      // Always allow read-only tools
      "Read",
      "Glob",
      "Grep",

      // Allow specific safe commands
      "Bash(npm test)",
      "Bash(npm run lint)",
      "Bash(npm run build)",
      "Bash(git status)",
      "Bash(git diff *)",
      "Bash(git log *)",

      // Allow file editing
      "Edit",
      "Write"
    ],
    "deny": [
      // Never allow destructive commands
      "Bash(rm -rf *)",
      "Bash(sudo *)",
      "Bash(curl * | bash)",
      "Bash(git push --force *)"
    ]
  }
}

# Set model at startup
$ claude --model claude-opus-4-20250514

# Change model during a session
Claude > /model claude-opus-4-20250514

# Set default model in settings
# Add to ~/.claude/settings.json:
# "model": "claude-sonnet-4-20250514"

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/allowed/dir"]
    },
    "postgres": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-postgres", "postgresql://localhost:5432/mydb"]
    },
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_TOKEN": "ghp_your_token_here"
      }
    }
  }
}

Review the current git diff carefully. For each changed file:

1. Check for logic errors or bugs
2. Verify error handling is comprehensive
3. Look for security issues (SQL injection, XSS, etc.)
4. Check for performance concerns
5. Verify test coverage for new/changed code

Provide a summary with:
- Overall assessment (ready to merge / needs changes)
- List of issues found (if any)
- Suggestions for improvement

# Use your custom command
Claude > /review-pr

# Custom commands with arguments (use $ARGUMENTS placeholder)
Claude > /review-pr --focus security

{
  "hooks": {
    "preToolUse": [
      {
        "matcher": "Edit",
        "hooks": [
          {
            "type": "command",
            "command": "echo 'About to edit a file'"
          }
        ]
      }
    ],
    "postToolUse": [
      {
        "matcher": "Write",
        "hooks": [
          {
            "type": "command",
            "command": "npx prettier --write $CLAUDE_FILE_PATH"
          }
        ]
      }
    ],
    "afterMessage": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "npm run lint --quiet"
          }
        ]
      }
    ]
  }
}

# Set environment variables in your shell profile
$ echo 'export ANTHROPIC_API_KEY="sk-ant-api03-..."' >> ~/.bashrc
$ echo 'export ANTHROPIC_MODEL="claude-sonnet-4-20250514"' >> ~/.bashrc
$ source ~/.bashrc