luanjunyi

Opuspad — AI skill for Claude Code

AI community

A local-first, WYSIWYG Markdown editor for Chrome.

How to install Opuspad

This entry records only its repository, not the path inside it, so there is no exact command to give. Open luanjunyi/opuspad and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Opuspad does

A local-first, WYSIWYG Markdown editor for Chrome. Seamlessly edit local files with a Notion-like experience, designed for human-AI collaboration on CLAUDE.md and READMEs.

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README

OpusPad: A local-first, WYSIWYG Markdown editor for Chrome, built for the AI era

![OpusPad Main Screenshot](docs/stock_check_md_1_rich.png)

Value Proposition

OpusPad transforms your Chrome browser into a robust local file editor with a Notion-like WYSIWYG experience. Seamlessly edit Markdown files (like CLAUDE.md, specs, or READMEs) stored on your local disk, without needing to open a full IDE or rely on cloud services.

**🌐 Website:** [editor.dull.business](https://editor.dull.business)

Why OpusPad?

  • Local-First: Your files stay on your disk. No cloud storage, no unnecessary uploads.
  • WYSIWYG & Source Mode: Enjoy a beautiful Notion-like editing experience, or switch to the raw Markdown source mode when needed.
  • AI-Ready: Perfect for managing and editing AI-generated content and specifications, like CLAUDE.md files, directly where you work.
  • Chrome Integrated: Leverages the native File System Access API for direct local file manipulation.
  • Lightweight: No need for heavy IDEs just to edit a few Markdown files.

Installation

1. Chrome Web Store (Recommended)

Install OpusPad directly from the [Chrome Web Store](https://chromewebstore.google.com/detail/opuspad/ephlhjlnpnjjnjgdohdnbknadhklcoag).

2. Developer Setup (for local development)

  1. Clone the repository: git clone https://github.com/luanjunyi/opuspad.git
  2. Navigate to the directory: cd opuspad
  3. Install dependencies: npm install
  4. Build the extension: npm run build (This will generate a dist/ directory)
  5. Load into Chrome:
    • Open Chrome and navigate to chrome://extensions/.
    • Enable "Developer mode".
    • Click "Load unpacked" and select the dist/ directory.

Use Cases

  • Editing CLAUDE.md files for AI agent instructions.
  • Managing local specification documents.
  • Quickly updating README.md files.
  • Any task requiring local Markdown file editing within Chrome.

Privacy

OpusPad is truly local-fir