metaskill-triggering

Installation
SKILL.md

Skill Trigger Optimization

Critical Insight

ONLY the description field affects triggering. All other frontmatter fields affect execution, not discovery.

At startup, Claude loads ONLY name + description (not full SKILL.md body). Matching is keyword-based, not deeply semantic.

The Trigger Formula

description: <What it does> + <Specific actions> + <When to use it> + <Trigger keywords>

Example Breakdown

# ✅ OPTIMAL - Hits all four parts
description: Write and review tests following TDD and best practices. ALWAYS use this skill BEFORE writing or modifying any test code. Triggers on "test", "tests", "testing", "TDD", "test-driven", "pytest", "add tests", "write tests", "test this", "unit test", "integration test", "test coverage", "bug fix", "fix bug", "verify", "edge case", or when about to create/edit files in tests/ directory.
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Installs
8
GitHub Stars
3
First Seen
Jan 21, 2026