claude-code-skills

claude-code-skills is a skill for Claude Code from gmh5225/awesome-skills. It costs 32 tokens per session (531 once invoked), scanned B, original, MIT.

A guide to installing and building Skills for Claude Code, Anthropic’s coding assistant. It explains where Skills are stored and how Claude Code finds them.

In plain words
What is it for?
Use it to install a Skill from GitHub, create one manually, check its metadata, and understand how Skills are activated.
Why use it?
It removes guesswork about the required folders, files, and restart steps when adding Skills to Claude Code.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions Claude Code.

Good fit Use it to install a Skill from GitHub, create one manually, check its metadata, and understand how Skills are activated.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gmh5225/awesome-skills/claude-code
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gmh5225/awesome-skills --skill claude-code
Clone the repo
git clone --depth 1 https://github.com/gmh5225/awesome-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for claude-code-skills

README.md
[![agentmods](https://agentmods.dev/badge/skills/gmh5225/awesome-skills/claude-code/github.svg)](https://agentmods.dev/skills/gmh5225/awesome-skills/claude-code)
Your own site
<a href="https://agentmods.dev/skills/gmh5225/awesome-skills/claude-code"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-skills/claude-code/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for claude-code-skills

Your own site · 80×15
<a href="https://agentmods.dev/skills/gmh5225/awesome-skills/claude-code"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-skills/claude-code.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 531 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00032 $0.00531
Opus 5 $0.00016 $0.00266
Sonnet 5 $0.00006 $0.00106
Haiku 4.5 $0.00003 $0.00053

Measured 9d ago against content hash 91c91e74f8da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

claude-code-skills scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

ls ~/.claude/skills/
.claude/skills/claude-code/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Skills

Scope

Use this skill when:

  • Installing skills for Claude Code
  • Developing Claude Code specific skills
  • Understanding Claude Code skill discovery

Installation Paths

  • Project scope: .claude/skills/ in project root
  • User scope: ~/.claude/skills/

Claude Code auto-discovers skills from these directories.

Installing Skills

From GitHub Repository

# Clone to project
git clone https://github.com/user/skill-repo .claude/skills/skill-name

# Or clone to user directory
git clone https://github.com/user/skill-repo ~/.claude/skills/skill-name

Manual Installation

  1. Create skill folder in .claude/skills/
  2. Add SKILL.md with frontmatter
  3. Restart Claude Code to pick up new skills

Verifying Installation

# List installed skills
ls ~/.claude/skills/

# Check skill metadata
head ~/.claude/skills/skill-name/SKILL.md

Using Skills

Skills activate automatically based on your request context. You can also:

  • Mention skill name explicitly in your prompt
  • Use /init to bootstrap context for a repository

Official Skills Repository

Key Official Skills

Skill Purpose
docx Word document manipulation
xlsx Excel spreadsheet operations
pptx PowerPoint presentations
pdf PDF extraction and creation
webapp-testing Playwright-based web testing
mcp-builder Create MCP servers
skill-creator Interactive skill creation

Claude Code Commands

  • /init - Initialize project context
  • Skills auto-load when relevant to your task

Best Practices

  1. Keep skills focused on specific tasks
  2. Use progressive disclosure for large reference files
  3. Include scripts for automation
  4. Test skills in isolated environments first

Full Resource List

For more detailed Claude Code skill resources, complete link lists, or the latest information, use WebFetch to retrieve the full README.md:

https://raw.githubusercontent.com/gmh5225/awesome-skills/refs/heads/main/README.md

Read the full file on GitHub · 95 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 95 lines · 32 tokens per session scan B 91c91e74f8da

Subscribe to this mod's changes

claude-code-skills is a skill published in the GitHub repository gmh5225/awesome-skills (48 stars, last pushed today), licensed MIT. It adds 32 tokens to every session and 531 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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