Gitmarkdown — AI skill for Claude Code
Collaborative markdown editor with two-way GitHub sync, real-time collaboration, and AI-powered editing.
How to install Gitmarkdown
This entry records only its repository, not the path inside it, so there is no
exact command to give. Open pooriaarab/gitmarkdown and copy the folder into
~/.claude/skills/, or the file into ~/.claude/agents/.
What Gitmarkdown does
Collaborative markdown editor with two-way GitHub sync, real-time collaboration, and AI-powered editing. Built with Next.js, Tiptap, Firebase, and Yjs.
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README
GitMarkdown
[](LICENSE) [](https://nextjs.org) [](https://typescriptlang.org)
A collaborative markdown editor with two-way GitHub sync, real-time collaboration, and AI-powered editing.
Overview
GitMarkdown is a web-based markdown editor that integrates with GitHub repositories. Edit markdown files with a rich WYSIWYG interface, collaborate in real-time, and sync changes directly to GitHub. Built with Next.js 16 and Tiptap v3.
Features
**Editor** - Tiptap v3 WYSIWYG with slash commands, bubble menu, syntax highlighting, tables, task lists, and full GFM support.
**GitHub Integration** - Two-way sync, branch management, PR creation, version history with inline diffs, and PR comment sync.
**Collaboration** - Yjs CRDT-based real-time editing with cursor tracking, presence indicators, inline comments, and reactions.
**AI** - Chat sidebar, inline editing (Ctrl+K), mermaid diagram generation, custom personas, and multi-provider support (Anthropic Claude, OpenAI).
**Document Management** - File tree with drag-and-drop, multi-tab editing, template gallery, table of contents, zip export, and find & replace.
**Developer Experience** - Command palette (Cmd+K), keyboard shortcuts, writing checks, code viewer with syntax highlighting, and BYOK AI keys.
Quick Start
For a full walkthrough, see the **[Setup Guide](docs/SETUP.md)**.
Prerequisites
- Node.js 20+
- A GitHub account
- A Firebase project (free Spark plan works)
- An Anthropic and/or OpenAI API key (for AI features)
Install
git clone https://github.com/pooriaarab/gitmarkdown.git
cd gitmarkdown
npm install
cp .env.exampleRelated Skills
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