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Skill

skill-authoring

author agent skills for agentskills.io

Covers Documentation Plugin Development Technical Writing

Description

Write Agent Skills that comply with the agentskills.io specification. WHEN: "create a skill", "new skill", "write a skill", "skill template", "skill structure", "review skill", "skill PR", "skill compliance", "SKILL.md format", "skill frontmatter", "skill best practices". DO NOT USE FOR: improving existing skills (use sensei), general documentation. INVOKES: waza CLI.

SKILL.md

Skill Authoring Guide

Constraints

  • name: 1-64 chars, lowercase + hyphens, match directory
  • description: inline double-quoted, ≤60 words, ≤1024 chars
  • Use WHEN: with quoted trigger phrases (preferred over USE FOR:)
  • SKILL.md: <500 tokens (soft), <5000 (hard)
  • references/*.md: <1000 tokens each

Structure

  • SKILL.md (required) — Frontmatter + instructions
  • references/ (optional) — Detailed docs, loaded on demand
  • scripts/ (optional) — Executable code

Progressive Disclosure

Metadata loads at startup. SKILL.md on activation. References load when linked via [text](references/file.md).

MCP Tools

ToolPurpose
NoneCLI-only; uses local file tools

CLI fallback: Primary mode is CLI-based. No MCP servers required.

Quick Start

  1. Create skill directory with SKILL.md
  2. Add frontmatter: name, description, license
  3. Run waza check {skill-name} to validate

Examples

  • "Create a new skill for code review"
  • "Review my skill for compliance"

Troubleshooting

If waza check reports broken links, verify reference file paths match exactly.

References

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