Borrowing it
Nothing to install: this file belongs to krmcbride/claude-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/krmcbride/claude-plugins/master/CLAUDE.mdgit clone --depth 1 https://github.com/krmcbride/claude-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/krmcbride/claude-plugins/claude-md)<a href="https://agentmods.dev/instructions/krmcbride/claude-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/krmcbride/claude-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/krmcbride/claude-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/krmcbride/claude-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 | $0.01641 | $0.01641 |
| Opus 5.5 | $0.00656 | $0.00656 |
| Sonnet 5.5 | $0.00328 | $0.00328 |
| Haiku 4.5 | $0.00164 | $0.00164 |
Grade A, and why
claude-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 — 279 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 Overview
This is a Claude Code plugin marketplace. All changes must maintain compatibility with the Claude Code plugin marketplace specification.
Required Marketplace Structure
Root Directory Requirements
MUST HAVE:
.claude-plugin/marketplace.json- Marketplace manifest (required at repository root)
Marketplace Manifest Schema (marketplace.json)
Required fields:
{
"name": "string", // Kebab-case identifier, no spaces
"owner": {
"name": "string" // Maintainer name
},
"plugins": [] // Array of plugin entries
}
Optional fields:
description: Brief marketplace overviewversion: Semantic versionmetadata.pluginRoot: Base path for relative plugin sources
Plugin Entry Schema (in marketplace.json)
Required fields:
{
"name": "string", // Kebab-case identifier, no spaces
"source": "string|object" // Plugin location (see below)
}
Source types:
- Relative path:
"./plugin-name" - GitHub:
{"source": "github", "repo": "owner/repo"} - Git URL:
{"source": "url", "url": "https://..."}
Optional fields:
description,version,author,homepage,repository,licensekeywords,category,tagsstrict: Boolean (default: true) - controls manifest handling- Component paths:
commands,agents,skills,hooks,mcpServers
Strict mode behavior:
strict: true(default): Plugin must have.claude-plugin/plugin.json; marketplace entry supplements itstrict: false: Plugin's.claude-plugin/plugin.jsonis optional; marketplace entry serves as complete manifest
Required Plugin Structure
Plugin Directory Layout
MUST HAVE:
plugin-name/
├── .claude-plugin/
│ └── plugin.json # Required when strict=true (default)
OPTIONAL components (at plugin root, not inside .claude-plugin/):
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 · 279 lines · 1,641 tokens per session scan A 8b788772f452
claude-plugins CLAUDE.md is an instructions file published in the GitHub repository krmcbride/claude-plugins (3 stars, last pushed 9mo ago), licensed MIT. It adds 1,641 tokens to every session, about $0.0066 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.
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