QM (Quartermaster)

Overview

MIT-licensed multiplayer agent-harness open-sourced by y-combinator (github.com/yc-software/qm). Designed for company-wide agent ops — not personal assistants. Slack + web; per-user and per-room scoped memory, permissions, durable sandboxes. Model-agnostic backends: Pi, opencode, codex, claude-code. Stack: TypeScript/Node, Fastify, Postgres.

Recent Developments

• 2026-07-31: Public MIT release; YC dogfoods across internal teams; early/buggy experiment disclaimer (2026-08-01-yc-qm-github-readme)
• Security postures: Strict / Auto / Dangerous
• Deploy: qm init into operator’s Fly/AWS account

Related

• y-combinator
• agent-harness
• agent-sandboxing
• multi-agent-systems
• company-wide-agent-infrastructure
• claude-code
• codex
• opencode

Sources

• 2026-08-01-yc-qm-github-readme