Borrowing it
Nothing to install: this file belongs to vpaivag/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/vpaivag/skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/vpaivag/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/vpaivag/skills/claude-md)<a href="https://agentmods.dev/instructions/vpaivag/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/vpaivag/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/vpaivag/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/vpaivag/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 | $0.00851 | $0.00851 |
| Opus 5 | $0.00426 | $0.00426 |
| Sonnet 5 | $0.00170 | $0.00170 |
| Haiku 4.5 | $0.00085 | $0.00085 |
Grade A, and why
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 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.
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 — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.
skills
Claude Code plugin marketplace + skills bundle. Plugin name: skills. Marketplace name: vpaivag.
Each skill is a self-contained SKILL.md under skills/<name>/, loaded on demand by the harness when its trigger fires. The plugin also ships declared agents (agents/*.md, auto-discovered) and the static asset library for visual.html (assets/visual/).
Hard rules
-
SKILL.md frontmatter is load-bearing. Every
skills/<name>/SKILL.mdmust start with YAML frontmatter containingnameanddescription. Thedescriptionis the trigger string the harness matches against user intent — edit it deliberately, not stylistically. -
Adding/removing/renaming a skill touches three places. Keep them in sync:
skills/<name>/SKILL.md(the skill itself)- The
skillsarray in.claude-plugin/plugin.json - The per-skill section + table of contents in
README.md
Agents are the analogous rule with two places:
agents/<name>.md(auto-discovered, no manifest entry) and the Agents table inREADME.md. -
Version lives in
plugin.jsononly. Bumpversionin.claude-plugin/plugin.jsonfor each release. Do not add aversionfield to.claude-plugin/marketplace.json— omitting it lets every git commit count as a new version, which is what enables/plugin updateto detect changes without a manual marketplace bump. (See https://code.claude.com/docs/en/plugin-marketplaces.) -
Companion files live beside SKILL.md. Some skills reference siblings (e.g.
skills/blueprint/CONTEXT-FORMAT.md,skills/blueprint/PLAN-FORMAT.md,skills/blueprint/QA-FORMAT.md). Don't move or rename them without updating the references insideSKILL.mdandagents/*.md. -
*-FORMAT.mdfiles are contracts, enforced just-in-time. Skills and agents must instruct reading the format file immediately before writing its artifact ("now — not earlier, never from memory") and validating the written file against the format's Required list. Artifact formats use real YAML frontmatter and stable IDs (EB-n,AC-n,B-n) — never the retired> **Field:**blockquote style. -
Preserve the user's voice in skill prose. Don't rewrite phrasing into a different style — the wording in each
SKILL.mdis intentional. -
Static assets and vanilla client-side JS only.
assets/visual/may hold CSS, dependency-free browser JS, HTML templates, and the vendoredmermaid.min.js(plugin-side only — never copied into suite dirs; opt-in per the rule inassets/visual/BLOCKS.md). No build step, no package managers, no runtime dependencies, no servers, no CI scaffolding. -
Split context is the pipeline's design principle.
qa-authorsees onlycontext.md;plan-criticsees one proposal;/qanever readsplan.md. Don't "improve" a skill or agent by giving a blind role more context — the blindness is the feature.
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.
- 9d ago First seen · 39 lines · 851 tokens per session scan A faab235e057a
skills CLAUDE.md is an instructions file published in the GitHub repository vpaivag/skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 851 tokens to every session, about $0.0043 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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.