claude-code-plugins-dev: Instructions file for Claude Code

CLAUDE.md

claude-code-plugins-dev CLAUDE.md is an instructions file for Claude Code from charlesjones-dev/claude-code-plugins-dev. It costs 2,018 tokens per session, scanned A, original, MIT.

Instructions for a repository that organises custom Claude Code plugins, skills, and other extensions into a marketplace.

In plain words
What is it for?
Use it when creating plugin metadata, registering plugins in the marketplace manifest, or consulting the official plugin documentation.
Why use it?
It explains the required marketplace files and plugin structure, reducing guesswork when adding or maintaining extensions.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions .claude-plugin; mentions CLAUDE.md.

This is charlesjones-dev/claude-code-plugins-dev's own configuration. It tells Claude Code how to work on claude-code-plugins-dev 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-code-plugins-dev configures →

Reuse

Borrowing it

Nothing to install: this file belongs to charlesjones-dev/claude-code-plugins-dev. 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/charlesjones-dev/claude-code-plugins-dev/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/charlesjones-dev/claude-code-plugins-dev

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 2,018 This file is loaded in full into every session.
When invoked 2,018 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 $0.02018 $0.02018
Opus 5.5 $0.00807 $0.00807
Sonnet 5.5 $0.00404 $0.00404
Haiku 4.5 $0.00202 $0.00202

Measured 10d ago against content hash 711365d1a069, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-plugins-dev 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 10d 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 · 180 lines

How it starts

The opening of the file, as written. The whole thing — 180 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 marketplace for custom Claude Code plugins, skills, and other extensions. The repository follows a structured plugin system where each plugin is self-contained with its own metadata and skills.

Official Documentation

For detailed information about Claude Code plugins, refer to these official documentation resources:

  1. Plugins: Core concepts and guide for creating and using Claude Code plugins
  2. Plugins Reference: Technical reference for plugin structure, metadata schemas, and command formats
  3. Plugin Marketplaces: Guide for creating and managing plugin marketplaces like this repository

These documentation resources provide authoritative information on plugin development best practices, metadata schemas, and marketplace structure that should be consulted when developing new plugins.

Architecture

Marketplace Structure

The repository uses a two-level metadata system:

  1. Root marketplace manifest (.claude-plugin/marketplace.json): Central registry that defines:

    • Marketplace owner and metadata
    • List of all available plugins with their source paths, descriptions, and categories
    • Plugin root directory location (./plugins)
  2. Individual plugin manifests (plugins/{plugin-name}/.claude-plugin/plugin.json): Each plugin has its own metadata including name, version, description, author, and license.

Plugin Organization

Plugins are organized under the plugins/ directory:

plugins/
  {plugin-name}/
    .claude-plugin/
      plugin.json          # Plugin metadata
    skills/
      {skill-name}/
        SKILL.md            # Skill implementation
    agents/                 # Optional
      {agent-name}.md       # Subagent definition

Read the full file on GitHub · 180 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. 10d ago Changed · +15 lines · +322 tokens per session 711365d1a069
  2. 1mo ago First seen · 165 lines · 1,696 tokens per session scan A 57ccbe0b5ff8

Subscribe to this mod's changes

claude-code-plugins-dev CLAUDE.md is an instructions file published in the GitHub repository charlesjones-dev/claude-code-plugins-dev (35 stars, last pushed 6d ago), licensed MIT. It adds 2,018 tokens to every session, about $0.0081 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 2026-08-30.

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