skill-developer
Create and manage Claude Code skills with auto-activation triggers, following Anthropic best practices and the 500-line rule.
- Two-hook architecture: UserPromptSubmit for proactive skill suggestions based on keywords and intent patterns, and Stop hook for gentle error-handling reminders after responses
- Three skill types with different enforcement levels: guardrail skills (block critical mistakes), domain skills (suggest best practices), and warning skills (advisory only)
- Configuration via
.claude/skills/skill-rules.jsonwith support for keyword triggers, intent patterns, file path globs, content regex patterns, and skip conditions (session tracking, file markers, environment variables) - Comprehensive reference documentation covering trigger types, hook mechanisms, troubleshooting, and a ready-to-use pattern library for common scenarios
Skill Developer Guide
Purpose
Comprehensive guide for creating and managing skills in Claude Code with auto-activation system, following Anthropic's official best practices including the 500-line rule and progressive disclosure pattern.
When to Use This Skill
Automatically activates when you mention:
- Creating or adding skills
- Modifying skill triggers or rules
- Understanding how skill activation works
- Debugging skill activation issues
- Working with skill-rules.json
- Hook system mechanics
- Claude Code best practices
- Progressive disclosure
- YAML frontmatter
- 500-line rule
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