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Collaborative AI-human document editor — real-time annotations, suggestions, and review powered by Claude Code via MCP

10 starsTypeScript

Tandem, real-time collaboration with Claude Code

Name: Tandem, real-time collaboration with Claude Code
Availability: InStock
Author: bloknayrb

by bloknayrb·Apr 6, 2026·2 points·0 comments

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AI Analysis

●●SolidShip ItBig BrainNiche Gem

Real-time AI annotations beat chatting, but requires Claude Code subscription.

Strengths

•Annotations as first-class citizens - highlights and comments sync bidirectionally.
•MCP integration means Claude can actually open and edit documents directly.
•Original file never modified unless you save - safe review workflow.

Weaknesses

•Very early - only 2 stars, experimental channels, requires manual setup.
•Locked to Claude Code ecosystem - no support for other LLM providers.

Post Description

I couldn't find a tool that would let me work with Claude as a true collaborator on a document, so we are making that tool together! Tandem is real-time collaboration between you and the same Claude Code that already has access to your domain knowledge, skills, plugins, etc.

Annotate, highlight, ask questions about specific snippets of text, and chat, all in the browser window. It is still pretty early, and channels are still an experimental feature, but it already feels way better than the annoying back and forth process that I was using before.