Hanzo AI

Skills

Extend Hanzo Dev with reusable skill bundles.

This is an experimental feature and may change.

Hanzo Dev can discover reusable "skills" on disk. A skill is a small bundle with a name, short description, and optional body instructions.

Enable Skills

Skills are behind the skills feature flag and enabled by default.

Disable in config:

[features]
skills = false

Override for a single run:

dev -c features.skills=true

Where Skills Live

Discovery roots (highest precedence first):

  1. Repo: .agents/skills/**/SKILL.md and .codex/skills/**/SKILL.md, from the current directory up to the repo root.
  2. Home: ~/.agents/skills/**/SKILL.md.
  3. User: $CODE_HOME/skills/**/SKILL.md (default: ~/.code/skills/, and the legacy ~/.codex/skills/ is read too).
  4. System: the .system skills that ship with Hanzo Dev, installed under $CODE_HOME.
  5. Admin: /etc/codex/skills/**/SKILL.md.

Names are deduped in that order, so a repo skill wins over a user skill of the same name, and a user skill wins over a system one.

Behavior:

  • Recursive scan; only files named exactly SKILL.md are loaded.
  • Hidden entries and symlinks are skipped.
  • Duplicate skill names are deduped by precedence (first match wins).
  • Render order is by name, then path.

File Format

YAML frontmatter + body. Required frontmatter fields:

  • name — non-empty, max 64 chars, single-line
  • description — non-empty, max 1024 chars, single-line

Extra keys are ignored.

Loading and Rendering

  • Skills load once at startup.
  • When valid skills exist, Hanzo Dev appends a runtime-only ## Skills section after AGENTS.md.
  • Invalid skills are ignored and surfaced as startup errors in the TUI.

Create a Skill

  1. Create ~/.code/skills/<skill-name>/.

  2. Add SKILL.md:

    ---
    name: your-skill-name
    description: what it does and when to use it
    ---
    
    # Optional body
    Add instructions, references, examples, or scripts (kept on disk).
  3. Restart Hanzo Dev.

Managing Skills

  • Use /skills in the TUI to browse and toggle skills.
  • Use the Settings overlay (Skills section) for configuration.

How is this guide?