🚫 Negative Skills CLI

Turn your Claude frustrations into an installable SKILL.md constraint file.

What it does

Instead of telling Claude what to do, this tool encodes what Claude should never do — packaged as a portable skill file you can drop into any Claude-compatible setup.

Setup

1. Clone the repo
2. Create a virtual environment: python -m venv venv
3. Activate it: venv\Scripts\activate (Windows) or source venv/bin/activate (Mac/Linux)
4. Install dependencies: pip install -r requirements.txt
5. Create a .env file with your Anthropic API key: ANTHROPIC_API_KEY=your-key-here

Usage

python main.py

Follow the prompts. Your skill file will be saved to the output/ folder.

Output format

Each generated skill includes:

• Description
• Context (when the skill applies)
• Constraints (CRITICAL / WARNING / PREFERENCE)
• Behavioral instructions for Claude

What's next

• Web UI
• Skill conflict detection
• Export to multiple formats
• Integration with Obsidian second brain