SkillKit
The toolkit for creating reusable skills for AI coding agents.
SkillKit helps you build, validate, and share skills that extend how your AI agent works. Works with Claude Code, GitHub Copilot, OpenCode, and Codex.
> Previously known as claude-skillkit. All old links redirect here automatically.
  
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What is SkillKit?
SkillKit is a toolkit for creating and validating custom AI agent skills. It ships two core skills:
skillkit— meta-skill for creating new skills and subagents with dual-mode validationskillkit-help— pre-build orientation: understand what skills are, decide skills vs subagents
> Looking for community skills & agents? Use: npx @rfxlamia/sm → SkillKit Marketplace
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Install
npx @rfxlamia/skillkitInteractive CLI — pick your tool(s), choose user or project scope. Done.
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Core Skills
| Skill | Trigger | What it does | |-------|---------|--------------| | skillkit | /skillkit | Create & validate skills/subagents — fast mode (12 steps) or full mode (15 steps) | | skillkit-help | /skillkit-help | Answer "what are skills?", "should I make one?", "is my skill good enough?" |
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Create Your First Skill
1. Install: npx @rfxlamia/skillkit 2. Run /skillkit-help — guided path to your first skill in ~10 minutes 3. Submit a PR to SkillKit Marketplace to share it
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SkillKit Creator Reference
The skillkit skill drives the creation workflow:
| Trigger | Workflow | Steps | |---------|----------|-------| | create skill | Full skill creation | 12 steps with research + validation | | create subagent | Subagent creation | 8 steps with template-based workflow | | validate skill | Validation only | Structure, references, quality checks | | Skills vs Subagents | Decision helper | Recommends approach, then creates | | convert doc to skill | Migration | Transform existing docs into skills |
Quality target: 9.0+/10 via 5-layer validation and multi-proposal generation.
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Automation Scripts
14 Python scripts in skills/skillkit/scripts/ — all support --format {text|json}.
<details> <summary>View all scripts</summary>
| Script | Purpose | |--------|---------| | init_skill.py | Initialize new skill directory structure | | init_subagent.py | Initialize new subagent with YAML template | | validate_skill.py | Structure and YAML validation | | token_estimator.py | Token consumption and cost estimation | | split_skill.py | Progressive disclosure auto-splitting | | pattern_detector.py | Workflow pattern recommendation | | pattern_detector_new.py | Enhanced pattern detection | | decision_helper.py | Skills vs Subagents decision tree | | security_scanner.py | Security vulnerability detection | | test_generator.py | Automated test generation | | quality_scorer.py | 5-category quality scoring (100 points) | | migration_helper.py | Document to skill conversion | | package_skill.py | Package skill for distribution | | quick_validate.py | Quick validation checks |
</details>
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Screenshots
CLI installer !installer
Guided orientation !skillkit-help
A finished skill !skill
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Community Skills & Agents
24 community skills and 7 agents are available at SkillKit Marketplace:
npx @rfxlamia/sm---
License
Apache 2.0 - Copyright 2025 rfxlamia
