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Y Combinator·Jul 31, 2026·v0.1.4·open source

QM

qm is an open-source, multiplayer agent harness designed for startups to facilitate collaborative work in Slack and on the web. It provides isolated workspaces for individuals and shared rooms for teams, featuring scoped memory, files, permissions, and durable sandboxes.

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on the blogY Combinator Releases QM: An Open-Source Agent Harness With Isolated Sandboxes and Postgres Memory 5 min
overview

qm is an open-source, multiplayer agent harness designed for startups to facilitate collaborative work in Slack and on the web. It provides isolated workspaces for individuals and shared rooms for teams, featuring scoped memory, files, permissions, and durable sandboxes.

key features
  • 01Personal and shared scopes for isolated and collaborative work
  • 02Multi-platform support for Slack and web interfaces
  • 03Model-agnostic architecture supporting Pi, OpenCode, Codex, and Claude Code
  • 04Durable per-scope sandboxes where installed tools persist
  • 05Configurable security postures with mandatory command policy guardrails
  • 06Background automation via crons and watches
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