Author Claude Code skills with SKILL.md frontmatter and trigger rules.
npx skills add https://github.com/joshka0/foxctl --skill skill-developer-joshka0
Please help me install this Agent Skill. Skill: skill-developer Source: https://github.com/joshka0/foxctl/tree/main/docs/knowledge/skill-developer Command: npx skills add https://github.com/joshka0/foxctl --skill skill-developer-joshka0
It solves the confusion and trial-and-error involved in creating Claude Code skills that correctly trigger, follow Anthropic best practices, and behave safely and predictably via hook-driven activation.
Use the skill-developer guide to create a new entry at .claude/skills/{your-skill}/SKILL.md and then validate that your triggers fire by testing the UserPromptSubmit hook with your prompt.
High-intent search queries and answers about installing and using this skill.
To create a Claude Code skill, author a SKILL.md file with mandatory YAML frontmatter (name and description), then tune skill-rules.json triggers using keywords, intent regex, file globs, and content regex to match user prompts and repository evidence.
Claude Code skills use UserPromptSubmit and PreToolUse hook flows to enforce guardrails. Hooks use exit codes to block via stderr, track sessions, and apply skip conditions to control activation behavior safely and predictably.
Skill activation fails when trigger patterns in skill-rules.json are mistuned. Debug by testing the UserPromptSubmit hook with your prompt, verifying keyword, intent regex, file glob, and content regex patterns to reduce false positives and negatives.
Progressive disclosure in skill development means keeping the main SKILL.md entry point concise—within the 500-line rule—and linking to reference documents for deep details, organizing content so users get essential information first without overload.
Tune skill-rules.json triggers by refining keywords, intent regex patterns, file-path globs, and content regex patterns. Test the UserPromptSubmit hook with representative prompts to verify activation suggestions fire correctly and reduce false matches.
A Claude Code SKILL.md file requires mandatory YAML frontmatter containing the name and description fields. These fields ensure the skill is discovered and activated correctly based on user prompts and repository evidence.
sergigpDefine and validate Claude Code skill auto-activation trigger rules.
fghaffarCreate Claude Code skills with SKILL.md structure and skill-rules.json configuration.
ManuelvillarvieitesAutomate creation, governance, and enforcement of Claude Code skills.
lastdays03Create and manage Claude Code skills with Anthropic best practices.
