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.
curl -O https://raw.githubusercontent.com/tswicegood/claude-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/tswicegood/claude-skillsWrote 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.
[](https://agentmods.dev/instructions/tswicegood/claude-skills/claude-md)<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.
<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>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 5.5 | $0.00271 | $0.00271 |
| Sonnet 5.5 | $0.00135 | $0.00135 |
| Haiku 4.5 | $0.00068 | $0.00068 |
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 2mo 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.
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.mdwith 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
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.
- 2mo ago First seen · 80 lines · 677 tokens per session scan A d3253718a436
claude-skills CLAUDE.md is an instructions file published in the GitHub repository tswicegood/claude-skills (2 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 677 tokens to every session, about $0.0027 per session on Opus 5.5. 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.
claude-skills CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| claude-skills CLAUDE.mdtswicegood/claude-skills | Instructions file | 2 | 5mo ago | Apache-2.0 | A | 677 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 3d ago | MIT | A | 4,313 | Codex, OpenCode |