AgentsAugust 4, 2026via MarkTechPost
Y Combinator Open-Sources QM: An MIT-Licensed Multiplayer Agent Harness That Runs In Slack And The Web
Why it matters
A production-grade agent infrastructure that handles isolation, permissions, memory, and multi-model flexibility is now available to practitioners. This is a real deployment pattern—not a toy—released at scale with vendor neutrality baked in.
Key signals
- Released July 31, 2026 under MIT license
- Used internally across accounting, legal, events, and engineering at Y Combinator
- Isolated workspaces per employee; scoped memory, files, keychain, permissions, crons per Slack room
- Supports Pi, OpenCode, Codex, Claude Code on same headless core—vendor lock-in avoided
- Deployable in Slack and web
- Durable sandbox architecture
The hook
Y Combinator open-sourced QM, the multiplayer agent harness running its entire internal ops—accounting, legal, engineering. MIT license. Runs in Slack. Works with any LLM.
Y Combinator has open-sourced QM, the multiplayer agent harness it uses internally across accounting, legal, events, and engineering. Released July 31, 2026 under an MIT license, QM gives each employee an isolated workspace and each Slack room its own scoped memory, files, keychain view, permissions…