Borrowing it
Nothing to install: this file belongs to kossakovsky/cc-plugins. 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/kossakovsky/cc-plugins/main/CLAUDE.mdgit clone --depth 1 https://github.com/kossakovsky/cc-pluginsWrote 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/kossakovsky/cc-plugins/claude-md)<a href="https://agentmods.dev/instructions/kossakovsky/cc-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/kossakovsky/cc-plugins/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/kossakovsky/cc-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/kossakovsky/cc-plugins/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 | $0.00827 | $0.00827 |
| Opus 5.5 | $0.00331 | $0.00331 |
| Sonnet 5.5 | $0.00165 | $0.00165 |
| Haiku 4.5 | $0.00083 | $0.00083 |
Grade A, and why
cc-plugins 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 1mo 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 — 93 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.
Project Overview
Community marketplace of plugins for Claude Code. Plugins are installed via:
/plugin marketplace add kossakovsky/cc-plugins
/plugin install <plugin-name>@cc-plugins
Validation
CI runs on push to main/develop and on PRs to main (.github/workflows/validate-plugins.yml):
- Validates
marketplace.jsonstructure and required fields - Validates each plugin's
plugin.json(valid JSON, required fields, kebab-case name) - Checks for duplicate plugin names
- Verifies plugin directories and README.md exist
Local validation for plugin development:
/plugin-development:validate
Note: plugins/plugin-development/scripts/validate-plugin.sh is a hook script invoked automatically on Write/Edit — it cannot be run standalone.
PR review is automated via Claude Code GitHub App (auto-reviews all PRs using instructions below).
Architecture
Marketplace Registry
.claude-plugin/marketplace.json — central registry listing all plugins. Each entry requires: name, source (relative path like ./plugins/<name>), description, version. Optional: author.name, category, tags, keywords.
Plugin Structure
Each plugin lives in plugins/<name>/ and must contain:
.claude-plugin/plugin.json— manifest with required fields:name(kebab-case),version,descriptionREADME.md— documentation
Optional component directories:
commands/— slash commands as.mdfiles with YAML frontmatter (descriptionfield recommended)skills/— skill definitionsagents/— sub-agent definitions as.mdfileshooks/— hooks configuration (hooks.json)
Current Plugins
| Plugin | Purpose |
|---|---|
switch-provider |
Switch Claude Code between AI providers (Anthropic, Z.AI, Kimi, MiniMax) with a single command |
plugin-development |
Scaffold, validate, review, and submit Claude Code plugins |
commit |
Smart git commits with conventional commit message generation |
writing-skills |
Create, test, and bulletproof skills using TDD methodology |
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.
- 1mo ago First seen · 93 lines · 827 tokens per session scan A 4389150cda62
cc-plugins CLAUDE.md is an instructions file published in the GitHub repository kossakovsky/cc-plugins (3 stars, last pushed 7mo ago), licensed MIT. It adds 827 tokens to every session, about $0.0033 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.
Other instructions, from other repositories
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).