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Requirements

Python 3.10 or higher is required to run Skill Lab.
Skill Lab supports Python 3.10, 3.11, 3.12, and 3.13.

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Install from PyPI

The easiest way to install Skill Lab is from PyPI using pip or uv: 
pip install skill-lab
This installs the core tool with static analysis, validation, info, and prompt export commands.

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Install with LLM Features

To use sklab generate for LLM-powered trigger test generation, install with the generate extra: 
pip install skill-lab[generate]
This includes the Anthropic SDK for Claude integration.

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Install from Source

For development or to use the latest unreleased features:
1

Clone the repository

git clone https://github.com/8ddieHu0314/Skill-Lab.git
cd Skill-Lab
2

Install in editable mode

pip install -e .

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Verify Installation

Check that Skill Lab is installed correctly: 
sklab --version
You should see output like: 
sklab 0.4.0

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Optional: API Key Setup

The sklab generate command requires an Anthropic API key. Other commands work without it.
If you plan to use sklab generate for LLM-powered test generation:
1

Get an API key

Sign up at console.anthropic.com and create an API key.
2

Set the environment variable

export ANTHROPIC_API_KEY=sk-ant-...
Add this to your ~/.bashrc or ~/.zshrc to make it permanent.

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Optional: Model Configuration

The default model for sklab generate is claude-haiku-4-5-20251001. You can override it: 
sklab generate ./my-skill --model claude-sonnet-4-5-20250929

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Trigger Testing Prerequisites

Trigger testing (sklab trigger) requires the Claude CLI to be installed separately.
To run trigger tests: 
npm install -g @anthropic-ai/claude-code
This is only needed if you plan to run trigger tests. Static analysis works without it.

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What’s Next?

Quickstart

Get to your first evaluation in 2 minutes

Commands Reference

Explore all available commands

Static Analysis Guide

Learn about the 19 static checks

Development Setup

Set up a development environment

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Troubleshooting

Skill Lab requires Python 3.10 or higher. Check your version:
python --version
If you need to upgrade, use pyenv or download from python.org.
If sklab isn’t found after installation, your PATH may not include pip’s bin directory.Try:
python -m skill_lab.cli --version
Or add pip’s bin directory to your PATH:
export PATH="$HOME/.local/bin:$PATH"
If you see ModuleNotFoundError: No module named 'anthropic', install the generate extra:
pip install skill-lab[generate]

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