TANDEM ====== AI-powered team collaboration | Cal Hacks 13.0 Tandem is a shared workspace that allows teams to collaborate on projects using different AI assistants without losing context between them. Rather than requiring everyone to use the same AI tool, Tandem connects assistants like Claude, ChatGPT, and Gemini to a shared file system and project context through the Model Context Protocol (MCP). Team members can access and update shared documents, track project activity, and review changes through a web dashboard. A background context manager powered by Claude Haiku processes workspace activity to maintain shared context, track progress, and identify potential conflicts. The system uses Convex for real-time synchronization, file storage, and version history. Version checks prevent outdated changes from silently overwriting newer work. Tech stack: TypeScript, Next.js, React, Node.js, Convex, Claude API (Haiku), MCP, Vercel GitHub: [Source code](https://github.com/crbns/tandem) Live: [Open Tandem](https://tandem-pink.vercel.app) Devpost: [Cal Hacks submission](https://devpost.com/software/tandem-o8gu1j)