Borrowing it
Nothing to install: this file belongs to claude-market/marketplace. 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/claude-market/marketplace/main/CLAUDE.mdgit clone --depth 1 https://github.com/claude-market/marketplaceWrote 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/claude-market/marketplace/claude-md)<a href="https://agentmods.dev/instructions/claude-market/marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/claude-market/marketplace/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/claude-market/marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/claude-market/marketplace/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 | $0.01355 | $0.01355 |
| Opus 5 | $0.00678 | $0.00678 |
| Sonnet 5 | $0.00271 | $0.00271 |
| Haiku 4.5 | $0.00136 | $0.00136 |
Grade A, and why
marketplace 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 12d 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 — 162 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 Purpose
This is the Claude Market marketplace repository - a hand-curated collection of open source Claude Code plugins (tools, agents, skills, and MCP servers). This marketplace enables centralized discovery and distribution of Claude Code extensions.
Marketplace Structure
Core File: .claude-plugin/marketplace.json
The marketplace is defined by a JSON file at .claude-plugin/marketplace.json in the repository root. This file contains:
- name: Kebab-case identifier for the marketplace
- owner: Maintainer information object with contact details
- plugins: Array of plugin entries available in this marketplace
- description (optional): Description of the marketplace's purpose
- version (optional): Marketplace version
- pluginRoot (optional): Default root directory for relative plugin paths
Plugin Entry Schema
Each plugin in the plugins array must include:
Required fields:
name: Kebab-case identifier for the pluginsource: Where to fetch the plugin (relative path, GitHub repo, or git URL)
Optional metadata:
description: What the plugin doesversion: Plugin versionauthor: Author name or organizationhomepage: Plugin homepage URLrepository: Source repository URLlicense: License typekeywords: Array of searchable keywords
Component configuration:
commands: Slash commands includedagents: Subagents includedhooks: Hooks includedmcpServers: MCP servers included
Source Types
Plugins can be sourced from:
- Relative paths:
"./plugin-name"(top-level directory in marketplace) - GitHub repos:
{"source": "github", "repo": "owner/repo"} - Git URLs:
{"source": "url", "url": "https://example.com/plugin.git"}
Curation Standards
Since this is a hand-curated marketplace:
- Quality over quantity: Only include well-tested, valuable plugins
- Accurate metadata: Ensure all plugin descriptions, keywords, and component lists are accurate
- Working sources: Verify all plugin sources are accessible and functional
- License compliance: Confirm all plugins have appropriate open source licenses
- Documentation: Plugins should have clear documentation on usage
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.
- 12d ago First seen · 162 lines · 1,355 tokens per session scan A 6dad9b0f31f4
marketplace CLAUDE.md is an instructions file published in the GitHub repository claude-market/marketplace (23 stars, last pushed 10mo ago), licensed MIT. It adds 1,355 tokens to every session, about $0.0068 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 2026-08-30.
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