Multica is an open-source platform for human-agent collaboration in software development. It provides a unified workspace where teams can assign issues to AI coding agents (Claude Code, Codex, Cursor, etc.), track agent execution with detailed logs and token usage, and review agent-generated work. The platform features issue tracking, project management, real-time chat, and workflow automation through autopilots. Built as a multi-platform application with web (Next.js/React), mobile (React Native/Expo), and desktop (Electron) clients sharing a Go-based backend and PostgreSQL database. The architecture emphasizes extensibility through skills, integrations with Git providers and chat platforms, and a plugin system for custom capabilities.