Borrowing it
Nothing to install: this file belongs to DropFan/claude-code-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/DropFan/claude-code-plugins/master/CLAUDE.mdgit clone --depth 1 https://github.com/DropFan/claude-code-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/dropfan/claude-code-plugins/claude-md)<a href="https://agentmods.dev/instructions/dropfan/claude-code-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/dropfan/claude-code-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/dropfan/claude-code-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/dropfan/claude-code-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 | $0.00775 | $0.00775 |
| Opus 5.5 | $0.00310 | $0.00310 |
| Sonnet 5.5 | $0.00155 | $0.00155 |
| Haiku 4.5 | $0.00077 | $0.00077 |
Grade A, and why
claude-code-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.
This is a copy
91% identical to claude-code-plugins AGENTS.md — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Code Plugins Collection
This is a Claude Code plugin marketplace repository.
Repository Structure
.claude-plugin/
marketplace.json # Marketplace manifest, declares all available plugins
plugins/
<plugin-name>/ # Self-developed plugin directory
.claude-plugin/
plugin.json # Plugin metadata
commands/ # User-invokable slash commands
agents/ # Subagent definitions
skills/ # Skill modules
hooks/ # Hook configurations
scripts/
sync-plugins.sh # Sync plugin.json metadata to marketplace.json and README.md
validate-plugins.sh # Validate plugin structure and metadata (plugin.json, frontmatter, naming)
verify-sync.sh # Detect drift between plugin.json and marketplace.json (--run-sync to fix)
lark-rebuild.py # Rebuild the lark plugin from lark-cli skill sources
tests/
run-tests.sh # Automated test runner
*-manual-tests.md # Manual test checklists per plugin
.github/workflows/
ci.yml # CI: validate-plugins + verify-sync + tests
Plugin Management
- Self-developed plugins — Source code lives directly under
plugins/<name>/ - Curated plugins — Referenced in
marketplace.jsonvia GitHub source pointing to external repos
Development Guidelines
Adding a Self-developed Plugin
- Create a plugin directory under
plugins/ - Create
.claude-plugin/plugin.jsonwith metadata (this is the single source of truth) - Add an entry to the
pluginsarray inmarketplace.jsonwith a relative path as source - Run
bash scripts/sync-plugins.shto auto-sync metadata tomarketplace.jsonandREADME.md
Note:
plugin.jsonis the single source of truth for self-developed plugins. Do NOT manually edit plugin metadata inmarketplace.jsonorREADME.md— run the sync script instead. The sync covers thedescription,version,author,keywords, andlicensefields; other fields are not propagated.
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 · 87 lines · 775 tokens per session scan A 21c59e955a58
claude-code-plugins CLAUDE.md is an instructions file published in the GitHub repository DropFan/claude-code-plugins (8 stars, last pushed 26d ago), licensed MIT. It adds 775 tokens to every session, about $0.0031 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to claude-code-plugins AGENTS.md, differing in 2 lines, and is treated as a copy.
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).