Sandbox Setup

Sandbox Setup Skill

Configure Claude Code for optimal autonomous agent execution in this repository.

What This Skill Does

1. Analyzes your codebase to detect:

   • Programming languages (Go, Python, Node.js, Rust, etc.)
   • Package managers (go mod, npm, pip, cargo, etc.)
   • Build tools and test runners
   • Dev servers and their ports

2. Generates tailored permissions for .claude/settings.json:

   • Allow commands for detected tools
   • Network access for package registries
   • File system permissions for build outputs

3. Preserves existing settings:

   • Merges with hooks configuration
   • Keeps deny rules for secrets
   • Maintains ask rules for git push

How to Use

When invoked, I will:

1. Scan the repository for configuration files (package.json, go.mod, Cargo.toml, requirements.txt, etc.)
2. Ask clarifying questions about your workflow
3. Present proposed settings for your approval
4. Update .claude/settings.json

Detection Patterns

I look for these files to detect your stack:

• go.mod → Go (go build, go test, go mod)
• package.json → Node.js (npm, yarn, pnpm, node)
• Cargo.toml → Rust (cargo build, cargo test)
• requirements.txt / pyproject.toml → Python (pip, python, pytest)
• Gemfile → Ruby (bundle, ruby, rake)
• pom.xml / build.gradle → Java (mvn, gradle)
• devbox.json → Devbox (devbox run)

Settings Structure

The generated settings follow this structure:

{
  "sandbox": {
    "enabled": true,
    "autoAllowBashIfSandboxed": true
  },
  "permissions": {
    "allow": ["Bash(detected-tools:*)"],
    "deny": ["Read(./.env)", "Read(./secrets/**)"],
    "ask": ["Bash(juggle:*)", "Bash(git push:*)"]
  },
  "hooks": { ... }
}

Reference

For detailed sandbox configuration options, see: https://www.nathanonn.com/claude-code-sandbox-explained/

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