How does Claude know when to load a specific skill?

Claude uses the 'description' field in the skill's YAML frontmatter, which should contain specific trigger phrases that match user requests.

Can I automate the review of my Claude skills?

Yes, this skill recommends using the 'skill-reviewer' agent to check for trigger quality, word count, and adherence to the imperative writing style.

What is the purpose of the SKILL.md file?

The SKILL.md file acts as the primary instruction set for a Claude Code skill, containing the logic, triggers, and frontmatter required for Claude to execute specific tasks.

What is progressive disclosure in skill development?

It is a best practice of keeping the core SKILL.md file under 1,500 words and moving detailed API docs or long-form content into a separate 'references/' directory to save context space.

Claude Skill Development

Name: Claude Skill Development
Author: nthplusio

bynthplusio

0•

Developer Tools

Standardizes the creation of Claude Code skills by providing structured templates, frontmatter guidance, and progressive disclosure patterns.

This skill serves as the definitive guide for developers building functional extensions for Claude. It provides a structured framework for creating SKILL.md files, defining trigger-based frontmatter, and implementing progressive disclosure strategies to keep AI instructions concise yet powerful. By following these patterns, developers can ensure their skills are auto-loaded correctly, maintain high code quality through the skill-reviewer agent, and organize complex documentation into manageable references and examples.

Key Features

01Directory structure templates for references, examples, and scripts

02Progressive disclosure patterns for managing large-scale documentation

03Trigger phrase optimization for improved model invocation accuracy

04Integration with automated skill-reviewer tools for quality assurance

05Standardized YAML frontmatter configuration for skill auto-loading

060 GitHub stars

Use Cases

01Refactoring monolithic documentation into a modular skill structure

02Optimizing skill descriptions to ensure they trigger on specific user intents

03Scaffolding a new specialized Claude Code skill from scratch

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nthplusio/functional-claude skill-development

For use in Claude.ai and ChatGPT

Download Skill