What is claude-skills CLAUDE.md?

Repository instructions for building reusable Claude Code skills, which are packaged sets of prompts and guidance for specific workflows.

Creating or maintaining skill folders, writing SKILL.md files, defining activation phrases, and documenting workflows and expected outputs.

They give an AI coding assistant a consistent way to discover skills, understand their structure, and follow the intended workflow.

How tswicegood/claude-skills configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to tswicegood/claude-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/tswicegood/claude-skills/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/tswicegood/claude-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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/tswicegood/claude-skills/claude-md/github.svg)](https://agentmods.dev/instructions/tswicegood/claude-skills/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/tswicegood/claude-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/tswicegood/claude-skills/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/tswicegood/claude-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/tswicegood/claude-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 677 This file is loaded in full into every session.

When invoked 677 The same file — it is already loaded in full.

Security scan A 0 findings. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00677	$0.00677
Opus 5	$0.00338	$0.00338
Sonnet 5	$0.00135	$0.00135
Haiku 4.5	$0.00068	$0.00068

Measured 10d ago against content hash d3253718a436, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

claude-skills CLAUDE.md scanned grade A with 0 findings 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 10d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Repository Overview

This repository contains custom Claude skills. Skills are reusable prompts that extend Claude's capabilities with specialized workflows and domain expertise.

Repository Structure

claude-skills/
├── {skill-name}/
│   ├── SKILL.md              # Main skill definition with frontmatter metadata
│   └── references/           # Optional: Additional guidance documents
│       └── *.md              # Referenced by the main SKILL.md

Skill Architecture

SKILL.md Structure

Each skill must have a SKILL.md file at the root of its directory. The file follows this structure:

Frontmatter (YAML):

---
name: skill-name
description: Brief description shown in skill selection. Should include trigger phrases.
---

Content Sections:

Trigger Phrases: When the skill should activate
Context Adaptation: How the skill adapts to different project contexts
Workflow: Step-by-step execution flow (use Step 1, Step 2, etc.)
Output Structure: Detailed format of deliverables
Quality Standards: Requirements for thoroughness and quality
Response Format: How to present results to the user
Common Pitfalls: Things to avoid

Reference Documents

Reference documents in references/ provide detailed guidance that would clutter the main SKILL.md. They are explicitly referenced by the main skill file (e.g., "read references/context_adaptation.md for detailed guidance").

Creating New Skills

When creating a new skill:

Create a directory with a descriptive name (use kebab-case)
Create SKILL.md with proper frontmatter
Include clear trigger phrases and context adaptation guidance
Structure workflows with numbered steps
Add reference documents only if needed for detailed guidance
Ensure the description in frontmatter mentions when to use the skill

Example: book-report Skill

Read the full file on GitHub · 80 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.

10d ago First seen · 80 lines · 677 tokens per session scan A d3253718a436

Subscribe to this mod's changes

claude-skills CLAUDE.md is an instructions file published in the GitHub repository tswicegood/claude-skills (2 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 677 tokens to every session, about $0.0034 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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