claude-plugins: Instructions file for Claude Code

CLAUDE.md

claude-plugins CLAUDE.md is an instructions file for Claude Code from krmcbride/claude-plugins. It costs 1,641 tokens per session, scanned A, original, MIT.

Repository instructions for maintaining a Claude Code plugin marketplace. They describe the required marketplace manifest and the format of plugin entries and sources.

In plain words
What is it for?
Use them when adding or editing plugins, marketplace metadata, repository structure, or the .claude-plugin/marketplace.json file.
Why use it?
They help changes remain compatible with Claude Code's marketplace rules and prevent missing or incorrectly structured files.

Instructions file for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: mentions .claude-plugin; mentions CLAUDE.md; mentions subagents.

This is krmcbride/claude-plugins's own configuration. It tells Claude Code how to work on claude-plugins itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-plugins configures →

Runs only inside a plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else, and the catalogue could not identify which plugin ships it.

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/krmcbride/claude-plugins/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/krmcbride/claude-plugins

Made for: Claude Code.

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Per session 1,641 This file is loaded in full into every session.
When invoked 1,641 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 1mo ago against content hash 8b788772f452, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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.

CLAUDE.md · 279 lines

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 overview
  • version: Semantic version
  • metadata.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, license
  • keywords, category, tags
  • strict: 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 it
  • strict: false: Plugin's .claude-plugin/plugin.json is 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/):

Read the full file on GitHub · 279 lines

Changes

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.

  1. 1mo ago First seen · 279 lines · 1,641 tokens per session scan A 8b788772f452

Subscribe to this mod's changes

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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