Borrowing it
Nothing to install: this file belongs to Maidang1/open-claude-cowork. 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/Maidang1/open-claude-cowork/main/CLAUDE.mdgit clone --depth 1 https://github.com/Maidang1/open-claude-coworkWrote 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/maidang1/open-claude-cowork/claude-md)<a href="https://agentmods.dev/instructions/maidang1/open-claude-cowork/claude-md"><img src="https://agentmods.dev/badge/instructions/maidang1/open-claude-cowork/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/maidang1/open-claude-cowork/claude-md"><img src="https://agentmods.dev/badge/instructions/maidang1/open-claude-cowork/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 | $0.01442 | $0.01442 |
| Opus 5 | $0.00721 | $0.00721 |
| Sonnet 5 | $0.00288 | $0.00288 |
| Haiku 4.5 | $0.00144 | $0.00144 |
Grade A, and why
open-claude-cowork 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 11d 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 — 146 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.
Open Claude Cowork - Development Guide
Project Overview
Open Claude Cowork is a desktop application built with Electron and React that enables collaboration with AI agents using the Agent Client Protocol (ACP). It provides a rich chat interface with markdown support, task management, and plugin architecture for extending agent capabilities.
Key Technologies
- Runtime: Electron (v39.2.6)
- Frontend: React (v19.2.1), TypeScript (v5.9.3)
- Build Tool: Rsbuild (v1.6.14)
- Styling: Tailwind CSS (v3.4.19)
- Database: better-sqlite3 (v12.6.2)
- AI Communication: @agentclientprotocol/sdk (v0.13.0)
- Code Quality: Biome (v2.3.8)
Development Commands
Installation
pnpm install
Development
pnpm run dev # Start dev mode (React + Electron with hot reload)
pnpm run dev:render # Start only React renderer process
pnpm run dev:main # Start only Electron main process (via nodemon)
Build
pnpm run build # Build for all platforms (interactive)
pnpm run build:darwin # Build for macOS (ARM64 + x64 universal)
pnpm run build:mac-x64 # Build for macOS x64
pnpm run build:mac-arm64 # Build for macOS ARM64
pnpm run build:win32 # Build for Windows
pnpm run build:linux # Build for Linux
pnpm run build:main # Build only main process
pnpm run build:render # Build only render process
pnpm run rebuild:main # Build main process and run production version
Linting & Formatting
pnpm run lint # Run Biome linting and auto-fix
Project Structure
open-claude-cowork/
├── src/
│ ├── main/ # Electron main process
│ │ ├── acp/ # Agent Client Protocol implementation
│ │ │ ├── AcpConnection.ts # ACP connection manager
│ │ │ └── AcpDetector.ts # ACP server discovery
│ │ ├── db/ # SQLite database operations
│ │ ├── ipc/ # Inter-process communication handlers
│ │ └── index.ts # Application entry point
│ ├── render/ # React renderer process
│ │ ├── agents/ # Agent plugin definitions & registry
│ │ ├── components/ # UI components (MessageRenderer, ChatInput, etc.)
│ │ ├── hooks/ # Custom React hooks
│ │ ├── utils/ # Utility functions (message composer, wallpaper)
│ │ ├── App.tsx / AppNew.tsx # Main application components
│ │ └── index.tsx # Renderer entry point
│ └── types/ # Shared TypeScript type definitions
├── builder/ # Rsbuild configuration files
├── public/ # Static assets (icons, wallpapers)
└── package.json # Dependencies and scripts
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.
- 11d ago First seen · 146 lines · 1,442 tokens per session scan A d06c52bac457
open-claude-cowork CLAUDE.md is an instructions file published in the GitHub repository Maidang1/open-claude-cowork (11 stars, last pushed 7mo ago), licensed MIT. It adds 1,442 tokens to every session, about $0.0072 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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