| name | setup-dev-env |
| description | Set up the development environment for the project. Use when starting work on the project, when dependencies are out of sync, or to fix environment setup failures. |
Setup Development Environment
This skill automates the process of setting up the development environment to ensure all tools and dependencies are correctly installed and configured.
Workflow Checklist
Detailed Instructions
1. Environment Validation
Python Version
Read the .python-version file in the workspace root. Ensure the current Python environment matches this version. If there's a mismatch, inform the user to switch Python versions (e.g., using pyenv or asdf).
Tooling Installation (macOS Focus)
Check if trunk and uv are installed and available in the current PATH.
On macOS, prioritize Homebrew installation to avoid common pathing and permission issues.
Check common locations:
/opt/homebrew/bin/trunk/opt/homebrew/bin/uv
If these tools are missing, install them via Homebrew:
brew install --cask trunk-io
brew install uv
CRITICAL: If the binaries exist in /opt/homebrew/bin/ but are not in the current shell's PATH, advise the user to add it:
export PATH="/opt/homebrew/bin:$PATH"
2. Dependency Installation
Run the following command at the workspace root to install all project dependencies.
make setup
This command runs dev/setup.sh, which performs informative checks for uv and trunk, creates a virtual environment, and syncs dependencies.
3. Tooling Setup
Trunk manages linters and formatters hermetically. Run the following command to ensure all required tools are downloaded and ready.
trunk install
Success Criteria
- All Python dependencies are installed successfully in the virtual environment.
trunk and uv are installed.- The Python version matches the requirement in
.python-version.
Post-Setup Verification
To ensure the environment is fully operational:
- Invoke Verifier: Run the
verifier subagent (../../agents/verifier.md). This confirms that the freshly installed dependencies allow for a successful build, pass lint checks, and satisfy all unit tests.
- Handle Failure: If the
verifier fails, follow its reporting to resolve environment-specific issues.
