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implement-agent-skills

Implement and maintain Claude Agent Skills with valid SKILL.md frontmatter, focused instructions, and progressive disclosure.

Skill by yu-iskw

IndexedApache-2.0
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/yu-iskw-implement-agent-skills

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Implement and maintain Claude Agent Skills with valid SKILL.md frontmatter, focused instructions, and progressive disclosure.

Use cases: agent-building

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What's inside

Skill name
implement-agent-skills
Description
Implement and maintain Claude Agent Skills with valid SKILL.md frontmatter, focused instructions, and progressive disclosure.
License
Apache-2.0
Instructions
54 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (12)

  • SKILL.md
  • skill-simple.md · assets/templates/
  • skill-template.md · assets/templates/
  • skill-with-references.md · assets/templates/
  • skill-with-scripts.md · assets/templates/
  • skill-workflow.md · assets/templates/
  • skill-frontmatter.md · references/
  • skill-invocation.md · references/
  • skill-progressive-disclosure.md · references/
  • skill-structure.md · references/
  • check-skill-frontmatter.sh · scripts/
  • validate-skill-structure.sh · scripts/

SKILL.md (first lines)

# Implement Agent Skills

Create or update `skills/<skill-name>/SKILL.md` files with deterministic scope and reusable references/scripts/templates.

## Workflow

1. **Assess complexity**: Use decision framework to determine skill level needed (simple vs workflow)
2. **Start simple**: Choose simplest skill type that meets requirements
3. **Define scope**: Single-purpose objective with clear trigger criteria and success metrics
4. **Create/update**: `skills/<name>/SKILL.md` with valid frontmatter
5. **Add supporting materials**: References/scripts/templates for progressive disclosure
6. **Plan evaluations**: Identify 20-50 test cases to validate skill behavior
7. **Validate**: Check frontmatter and directory structure
8. **Cross-link**: Connect to plugin packaging or umbrella guidance as needed

## Progressive Disclosure

### Best Practices (Anthropic Guidelines)

- **Complexity decision framework**: `../implement-claude-extensions/references/decision-framework.md`
- **Context management patterns**: `../implement-claude-extensions/references/context-management.md`
- **Evaluation strategy**: `../implement-claude-extensions/references/evaluation-strategy.md`

### Skill Design Patterns

- Skill directory conventions: `references/skill-structure.md`
- Required frontmatter fields: `references/skill-frontmatter.md`
- Progressive disclosure patterns: `references/skill-progressive-disclosure.md`
- Invocation and trigger guidance: `references/skill-invocation.md`

### Validation Tools

- Structure validator: `scripts/validate-skill-structure.sh`
- Frontmatter checker: `scripts/check-skill-frontmatter.sh`

### Tiered Templates (by Complexity)

- **Level 1 - Simple Skill** (Score 1-3): `assets/templates/skill-simple.md`
- **Level 2 - Workflow Skill** (Score 4-6): `assets/templates/skill-workflow.md`
- Base skill template: `assets/templates/skill-template.md`
- Skill with references example: `assets/templates/skill-with-references.md`
- Skill with scripts example: `assets/templates/skill-with-scripts.md`

## Related Skills

- Umbrella routing and component selection: `../implement-claude-extensions/SKILL.md`
- Plugin packaging/distribution: `../implement-plugin/SKILL.md`

## Sources

- https://code.claude.com/docs/en/skills
- https://code.claude.com/docs/en/plugins

From yu-iskw/google-cloud-observability-plugin, Apache-2.0.

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Last commit (this folder)
Feb 13, 2026 (8 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

implement-agent-skills. Agent Mart. https://agentmart.dev/skills/yu-iskw-implement-agent-skills (last updated 2026-10-24)