Borrowing it
Nothing to install: this file belongs to eins78/agent-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/eins78/agent-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/eins78/agent-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/eins78/agent-skills/claude-md)<a href="https://agentmods.dev/instructions/eins78/agent-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/eins78/agent-skills/claude-md.svg" alt="Measured on agentmods" 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 | $0.02649 | $0.02649 |
| Opus 5 | $0.01324 | $0.01324 |
| Sonnet 5 | $0.00530 | $0.00530 |
| Haiku 4.5 | $0.00265 | $0.00265 |
Grade A, and why
agent-skills CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skills Repository
Agent Skills collection for Claude Code, following the agentskills.io spec.
Uses the skills CLI for validation.
Skill Format
Each skill lives in its own directory under skills/ and consists of:
skills/<skill-name>/
├── SKILL.md # The skill itself (frontmatter + instructions)
└── README.md # Development documentation (REQUIRED)
Skills may also bundle additional directories as needed:
scripts/— executable wrappers referenced from SKILL.md via${CLAUDE_SKILL_DIR}/scripts/...themes//assets/— stylesheets, templates, or other static files used by scriptsreferences/— deep-dive docs loaded on demand, not auto-includedtests/— optional post-install smoke tests (not run bypnpm test; provide a manual command in the skill's README so contributors and post-install users can verify the setup works)
SKILL.md
YAML frontmatter followed by markdown instructions:
---
name: skill-name
description: When to activate and what the skill covers.
globs: ["**/*.ts", "**/*.tsx"]
license: MIT
---
The markdown body contains patterns, rules, and examples that Claude follows when the skill is active.
README.md (required)
Every skill directory must contain a README.md with development documentation:
- Purpose and scope of the skill
- Skill tier (publishable/reusable vs project-specific)
- How the skill was tested and validated
- Provenance (where patterns originated)
- Known gaps and planned improvements
Validation
pnpm test # runs: skills add . --list
This lists all discovered skills and exits non-zero if any skill fails to parse.
Digraph Rendering
If SKILL.md contains ```dot blocks:
- Create
diagrams/directory in skill folder - Run
.dev/scripts/render-digraphs.sh SKILL.md ./diagrams - Commit both .dot and .png files
- Reference images in SKILL.md where helpful
Requires: brew install graphviz
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.
- 6d ago First seen · 246 lines · 2,649 tokens per session scan A 3ab9707c036d
agent-skills CLAUDE.md is an instructions file published in the GitHub repository eins78/agent-skills (2 stars, last pushed 20d ago), licensed MIT. It adds 2,649 tokens to every session, about $0.0132 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.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.