Writing SKILL.md Files

Writing SKILL.md Files is a Writing skill for Claude Code, published by jeremylongshore in claude-code-plugins-plus-skills.

2.6K stars378 forkson jeremylongshore/claude-code-plugins-plus-skillsAdded 2026/07/19+1% in starsRepository updated 2026/08/06

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Install in seconds

Install Writing SKILL.md Files

Copy Writing SKILL.md Files into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/main/marketplace/src/content/docs/guides ~/.claude/skills/guides

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/jeremylongshore/claude-code-plugins-plus-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: marketplace/src/content/docs/guides/write-a-skill.md in jeremylongshore/claude-code-plugins-plus-skills
Installs to: ~/.claude/skills/guides
Collection: One of 53 skills cataloged from this repository
Category: Writing — 1361 skills

What Writing SKILL.md Files does

Step-by-step guide to writing SKILL.md files for Claude Code. Learn how to plan, structure, and test auto-activating skills with proper frontmatter, allowed-tools, and dynamic context injection.

Writing SKILL.md Files is cataloged under Writing on DirSkills. Writing SKILL.md Files comes from a repository tagged agent-skills, ai, ai-agents, anthropic and automation.

Documentation

README

Excerpt

What Is a Skill?

A skill is an auto-activating instruction file that Claude Code loads when its trigger conditions are met. Unlike slash commands (which the user must explicitly invoke) or agents (which run as autonomous sub-agents), skills activate automatically based on context. They live at skills/[skill-name]/SKILL.md inside a plugin directory and contain YAML frontmatter followed by Markdown instructions.

Skills are the most common building block in the Tons of Skills ecosystem. Of the 2,834 skills available on the marketplace, the vast majority are SKILL.md files that enhance Claude Code's behavior for specific tasks: code review, deployment, API integration, testing, and more.

This is the opening of the README. Read the full README on GitHub.

Commands Writing SKILL.md Files provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/plugin

Frequently asked about Writing SKILL.md Files

What else does jeremylongshore publish alongside Writing SKILL.md Files?
Writing SKILL.md Files is one of 53 skills that DirSkills catalogs from jeremylongshore/claude-code-plugins-plus-skills, the repository it ships in. Its siblings there include Agency OS, Anti-Deception and Audit. Each one is a separate skill with its own page in this directory, installs the same way Writing SKILL.md Files does, and is maintained by jeremylongshore in that same repository. The rest of the collection is listed on the jeremylongshore/claude-code-plugins-plus-skills page.
How does Writing SKILL.md Files compare to other Writing skills?
Writing SKILL.md Files ranks #238 by stars among the 1361 Writing skills in this catalog. The most-starred ones next to it are Article Writing, Social Media Content Calendar and Knowledge Comic Creator. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Writing SKILL.md Files against them. Open each page to compare what they document and how they install.