Claude Wrapper

Custom wrapper for Claude Code CLI with identity management and 1Password secrets integration.

Features

• Git Identity Management: Separate git identity for Claude Code operations
• SSH Key Isolation: Dedicated SSH key for Claude git operations
• GitHub Token Management: Separate GitHub CLI token
• 1Password Integration: Secure secrets management with minimal TouchID prompts
• Multi-Level Secrets: Global, project, and local secrets support
• Debug Mode: Comprehensive logging for troubleshooting
• Graceful Degradation: Works with or without 1Password
• Modular Architecture: Clean separation of concerns for maintainability

Quick Start

Installation

1. Clone this repository:

   git clone https://github.com/smartwatermelon/claude-wrapper.git ~/.claude-wrapper

2. Symlink the wrapper to your local bin:

   mkdir -p ~/.local/bin
   ln -sf ~/.claude-wrapper/bin/claude-wrapper ~/.local/bin/claude

3. Ensure ~/.local/bin is in your PATH:

   echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc  # or ~/.zshrc

4. Verify installation:

   which claude  # Should show ~/.local/bin/claude
   claude --version

Configuration

Git Identity (Required)

The wrapper automatically sets up a dedicated git identity for Claude Code:

• Name: Claude Code Bot
• Email: claude-code@smartwatermelon.github

SSH Key (Optional)

Create a dedicated SSH key for Claude git operations:

ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519_claude_code -C "claude-code@smartwatermelon.github"

# Add to GitHub
cat ~/.ssh/id_ed25519_claude_code.pub
# Copy and add to https://github.com/settings/keys

GitHub Token (Optional)

Create a GitHub fine-grained PAT for Claude CLI operations:

# Create token at: https://github.com/settings/personal-access-tokens/new
# Required permissions: Contents (R/W), Pull requests (R/W), Actions (R)

# Save token (single account)
mkdir -p ~/.config/claude-code
echo "your_github_token_here" > ~/.config/claude-code/gh-token
chmod 600 ~/.config/claude-code/gh-token

Multi-Org Token Routing (Optional)

Fine-grained PATs are scoped to a single owner (user or organization). To work with repos across multiple owners, create one token per owner:

# Personal repos (resource owner: your username)
echo "github_pat_personal..." > ~/.config/claude-code/gh-token.smartwatermelon
chmod 600 ~/.config/claude-code/gh-token.smartwatermelon

# Organization repos (resource owner: the org)
echo "github_pat_org..." > ~/.config/claude-code/gh-token.nightowlstudiollc
chmod 600 ~/.config/claude-code/gh-token.nightowlstudiollc

# Keep a default fallback (or copy one of the above)
cp ~/.config/claude-code/gh-token.smartwatermelon ~/.config/claude-code/gh-token

The wrapper detects the target repo owner from gh CLI arguments (e.g., --repo owner/repo, API paths like repos/owner/...) or the git remote of the current directory, then loads the matching gh-token.<owner> file. If no owner-specific file exists, it falls back to gh-token.

1Password Secrets (Optional)

See SECRETS.md for comprehensive 1Password setup guide.

Quick setup:

# 1. Install 1Password CLI
brew install --cask 1password-cli

# 2. Enable app integration in 1Password settings

# 3. Create secrets file
mkdir -p ~/.config/claude-code
cat > ~/.config/claude-code/secrets.op <<EOF
ANTHROPIC_API_KEY=op://Personal/Claude-API/credential
GITHUB_TOKEN=op://Personal/GitHub/token
EOF

Usage

Use claude command as normal:

# Normal usage
claude

# With debug output
CLAUDE_DEBUG=true claude

# Pass arguments
claude -c "your command here"
claude --version

The wrapper:

1. Sets git identity
2. Authenticates with 1Password (once per session)
3. Loads secrets from multi-level files
4. Passes through to real Claude CLI

Documentation

• SECRETS.md: Comprehensive 1Password integration guide

  • Setup and configuration
  • Secret reference syntax
  • Multi-level secrets
  • Team workflows
  • Troubleshooting

• SECURITY.md: Security hardening documentation

  • Permission validation
  • Path security
  • Binary validation

• tests/README.md: Test suite documentation

  • Running tests
  • Manual testing scenarios
  • Adding new tests

Development

Running Tests

# Run all automated tests
./tests/test-wrapper.sh

# Run with verbose output
VERBOSE=true ./tests/test-wrapper.sh

Project Structure

claude-wrapper/
├── bin/
│   └── claude-wrapper          # Main entry point (orchestrates modules)
├── lib/
│   ├── logging.sh              # Debug/error/warning logging
│   ├── permissions.sh          # File permission validation
│   ├── path-security.sh        # Path canonicalization and traversal protection
│   ├── git-identity.sh         # Git author/committer identity
│   ├── github-token.sh         # GitHub CLI token loading + multi-org routing setup
│   ├── gh-token-router.sh     # Per-invocation token selection (sourced by gh wrapper)
│   ├── secrets-loader.sh       # 1Password integration
│   ├── binary-discovery.sh     # Claude binary search/validation
│   └── pre-launch.sh           # Project-specific pre-launch hooks
├── docs/
│   ├── SECRETS.md              # 1Password documentation
│   └── SECURITY.md             # Security hardening documentation
├── tests/
│   ├── test-wrapper.sh         # Test suite
│   └── README.md               # Test documentation
├── .claude/                    # Project-specific Claude config
├── .gitignore
└── README.md                   # This file

Code Quality

This is security-critical infrastructure code. All changes require:

1. ShellCheck compliance: Zero warnings or errors
2. Test coverage: All new features must have tests
3. Code review: AI-assisted review before commit
4. Security review: Adversarial review for security changes

# Run ShellCheck on all modules
shellcheck bin/claude-wrapper lib/*.sh

# Run tests
./tests/test-wrapper.sh

# Run code review (requires Claude Code)
claude --agent code-reviewer bin/claude-wrapper lib/

Security

What Gets Access to Secrets?

• Claude CLI process: Yes
• Git hooks: Yes (subprocesses inherit environment)
• Spawned agents: Yes (subprocesses inherit environment)
• Other terminal windows: No
• After Claude exits: No (environment cleared)

Secret Storage

• 1Password vault: ✓ Encrypted, secure
• secrets.op files: ✓ Only references, not actual secrets
• Process environment: ✓ Temporary, cleared on exit
• Shell history: ✓ Not stored (not exported to shell)

Best Practices

• Never commit .claude/secrets.local.op
• Use separate vaults for different security levels
• Review secrets file permissions: chmod 600 ~/.config/claude-code/secrets.op
• Use service accounts for CI/CD
• Enable TouchID for 1Password app

Troubleshooting

Wrapper not found

# Check symlink
ls -la ~/.local/bin/claude

# Verify PATH
echo $PATH | grep -o "\.local/bin"

# Recreate symlink
ln -sf ~/.claude-wrapper/bin/claude-wrapper ~/.local/bin/claude

Git identity not applied

# Check git log shows bot identity
git log -1 --format='%an <%ae>'

# Should show: Claude Code Bot <claude-code@smartwatermelon.github>

# Debug wrapper
CLAUDE_DEBUG=true claude -c "git log -1"

1Password prompting too often

# Verify app integration
op account get

# Check 1Password app settings:
# - Settings → Security → Touch ID: ON
# - Settings → Developer → Integrate with CLI: ON

Secrets not available

# Enable debug mode
CLAUDE_DEBUG=true claude -c "printenv | grep API_KEY"

# Verify secret reference
op read "op://Personal/Claude-API/credential"

# Check secrets files exist
ls -la ~/.config/claude-code/secrets.op

See SECRETS.md for comprehensive troubleshooting.

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Run tests: ./tests/test-wrapper.sh
5. Run ShellCheck: shellcheck bin/claude-wrapper lib/*.sh
6. Submit a pull request

License

MIT License - see LICENSE file for details

Related Projects

• Claude Code - Official Claude Code CLI
• 1Password CLI - 1Password command-line tool
• GitHub CLI - GitHub command-line tool

Changelog

v3.0.0 (2026-02-01)

• Renamed from claude-custom to claude-wrapper
• Modularized architecture: split into 8 focused modules in lib/
• Each module is independently testable
• Improved test suite with TDD approach
• Full ShellCheck compliance across all modules

v2.0.0 (2026-01-14)

• Added 1Password secrets integration
• Multi-level secrets support (global, project, local)
• Enhanced error handling
• Debug mode
• Comprehensive test suite
• Full documentation

v1.0.0 (Initial)

• Git identity management
• SSH key isolation
• GitHub token support
• Binary discovery logic