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Skills

Skills are extensions that provide specialized capabilities for specific tasks. They are installed from GitHub repositories and automatically advertised to the AI when relevant.

What are Skills?

Skills follow a progressive disclosure pattern:

  1. Advertise - Skill names and descriptions are included in the system prompt (~100 tokens per skill)
  2. Load - When needed, the full SKILL.md content is loaded (< 5000 tokens)
  3. Resources - Supplementary files (templates, examples) are available when needed

Install a Skill

Install skills from GitHub repositories:

janito --install-skill https://github.com/user/repo/tree/main/skills/git-commit

Skills are installed to ~/.janito/skills/<skill-name>/.

List Installed Skills

janito --list-skills

Uninstall a Skill

janito --uninstall-skill git-commit

Available Tools

When a skill is installed, two tools become available:

Tool Description
load_skill Load the full SKILL.md content for detailed instructions
read_skill_resource Read supplementary files from the skill directory

The AI automatically uses these tools when your request matches a skill's description.

Skill Format

Skills are stored as directories containing:

~/.janito/skills/<skill-name>/
├── SKILL.md          # Main skill documentation
└── resource-file.md  # Optional supplementary files

SKILL.md Format

A skill's SKILL.md should include:

  • Name and description at the top
  • Overview of what the skill does
  • Usage instructions with examples
  • Best practices and tips

Example: Installing the Git Commit Skill

# Find a skills repository on GitHub
janito --install-skill https://github.com/ikignosis/janito/tree/main/skills/git-commit

Tips

  • Skills are automatically advertised based on your request
  • The AI decides when to load a skill's full content
  • Keep skill descriptions concise for efficient system prompts