Borrowing it
Nothing to install: this file belongs to vinnie357/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/vinnie357/claude-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/vinnie357/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/vinnie357/claude-skills/claude-md)<a href="https://agentmods.dev/instructions/vinnie357/claude-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/vinnie357/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/vinnie357/claude-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/vinnie357/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 | $0.06420 | $0.06420 |
| Opus 5.5 | $0.02568 | $0.02568 |
| Sonnet 5.5 | $0.01284 | $0.01284 |
| Haiku 4.5 | $0.00642 | $0.00642 |
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 20d 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 — 719 lines — stays where its author put it; the contents beside it link to each section on GitHub.
@plugins/tools/claude-code/templates/CLAUDE.md When Spawning agents allways instruct them to load skills for their tasks as the frist step.
Claude Skills Project
This repository contains modular, self-contained skills that extend Claude's capabilities with specialized knowledge, workflows, and tools.
What Are Agent Skills?
Agent skills are organized directories containing instructions, scripts, and resources that Claude can dynamically discover and load. They enable a single general-purpose agent to gain domain-specific expertise without requiring separate custom agents for each use case.
Skills function as composable, reusable packages that transform Claude into a domain-specific agent equipped with procedural knowledge and specialized capabilities.
Why Skills Matter
General-purpose AI agents like Claude Code need domain-specific expertise to handle real-world work effectively. Rather than building separate custom agents for each use case, skills provide:
- Modularity: Self-contained packages that can be mixed and matched
- Reusability: Share and distribute expertise across projects and teams
- Progressive Disclosure: Load context only when needed, keeping interactions efficient
- Specialization: Deep domain knowledge without sacrificing generality
How Skills Work
Skills operate on a principle of progressive disclosure across multiple levels:
Level 1: Discovery
Agent system prompts include only skill names and descriptions, allowing Claude to decide when each skill is relevant based on the task at hand.
Level 2: Activation
When Claude determines a skill applies, it loads the full SKILL.md file into context, gaining access to the complete procedural knowledge and guidelines.
Level 3+: Deep Context
Additional bundled files (like references, forms, or documentation) load only when needed for specific scenarios, keeping token usage efficient.
This tiered approach maintains efficient context windows while supporting potentially unbounded skill complexity.
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.
- 20d ago Changed · +46 tokens per session 8e67355e4c76
- 1mo ago First seen · 719 lines · 6,374 tokens per session scan A bdaf8431f1fe
claude-skills CLAUDE.md is an instructions file published in the GitHub repository vinnie357/claude-skills (27 stars, last pushed 18d ago), licensed MIT. It adds 6,420 tokens to every session, about $0.0257 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 2026-08-30.
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