Skill Development
Guides effective Skill creation following the Universal Skills Specification.
Overview
Skills enable agents to work autonomously without human intervention. This skill provides the methodology for creating specification-compliant skills using progressive disclosure, robust scripting, and agentic patterns.
When to Use
- •User mentions "create a skill", "new skill", "write a skill", "improve skill"
- •Reviewing or auditing existing skills for compliance
- •Designing skill architecture with proper agentic patterns
Workflow
<workflow> 1. **Analyze & Plan**: - Determine Degrees of Freedom (Fragile vs Creative) using `references/agentic-patterns.md`. - Define Security Scope using `references/security-best-practices.md`. - Create `evaluation_plan.md` from `assets/templates/evaluation_plan.md`.- •
Draft Content:
- •Use
assets/templates/skill_structure.mdforSKILL.md. - •Use
assets/templates/robust_script.pyfor any Python scripts. - •Write frontmatter using
references/description-templates.md(CRITICAL).
- •Use
- •
Verify & Refine:
- •Validate against
references/compliance-checklist.md. - •Ensure all paths are relative to project root.
- •Verify that instructions use imperative, third-person language (no "you"). </workflow>
- •Validate against
Critical Rules
<rules> - **Frontmatter**: MUST use directive language (MUST BE USED, Use PROACTIVELY) in `description`. - **Language**: NEVER use second person ("You should"). Use imperative ("Do X"). - **Structure**: Keep `SKILL.md` body under 500 lines. Move details to `references/`. - **Pathing**: ALWAYS use project-root relative paths. - **Verification**: workflows MUST include self-correction loops. </rules>Resources
- •Core Principles:
references/core-principles.md(Philosophy, Directory Structure, Detailed Workflow) - •Templates:
- •Description:
references/description-templates.md - •Structure:
assets/templates/skill_structure.md - •Script:
assets/templates/robust_script.py - •Evaluation:
assets/templates/evaluation_plan.md
- •Description:
- •Guides:
- •
references/compliance-checklist.md - •
references/agentic-patterns.md - •
references/security-best-practices.md - •
references/progressive-disclosure.md
- •