Open Session

A self-hosted team control room for orchestrating parallel coding agents with multiplayer collaboration and pull request workflows.

Open Session is an open-source, self-hosted cloud agent orchestrator designed for engineering teams that want full control over their AI coding workflows. Built by the team at Tella, it enables developers to run parallel coding agents simultaneously, collaborate in real time with multiplayer presence, and review every session before shipping via pull requests. Key features include Desk mode for persistent agent sessions with full server context, worktree terminals, branch previews, sub-agents, automations, and shareable session links. Open Session supports any model and integrates where teams already work, making it the central control room for teams building software with AI agents.