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@eve_bouff says she has been the #1 power user of QM (YC’s internal multi-agent…

2026-07-31 · 17:58 UTC ·@eve_bouff ·1 min read

Brief

Eve Bouff (@eve_bouff) announced on 2026-07-31 that Y Combinator has open-sourced QM, their internal multi-agent harness, linking github.com/yc-software/qm. She reports being QM’s #1 power user; YC describes QM as MIT‑licensed, cloud‑first, with native Slack and web UIs, used across accounting, legal, events, and engineering and credited with 1000x productivity gains.

Why it matters

@eve_bouff says she has been the #1 power user of QM (YC’s internal multi-agent harness) for months and announced YC is open-sourcing it; repo: github.com/yc-software/qm (announcement published 2026-07-31).

Key details

  • YC states QM is MIT-licensed, cloud-first, with native Slack and web UIs, used across accounting, legal, events, and engineering; the team credits QM with enabling partners/staff to '1000x' themselves and letting a very lean YC team output like an army.
Source evidence

i've been the #1 power user of qm, our internal multi-agent harness at yc, for months. today, we're open-sourcing it.

it's been mesmerizing watching yc partners and staff use it to 1000x themselves. we're an intentionally, ridiculously lean team at yc, yet we output like an army. qm plays a meaningful part in making that possible.

i genuinely believe some of the best software should feel like a gift to the world. open source lets more people build more, create more, and accomplish more. a gift from builders to builders.

github.com/yc-software/qm

Link

GitHub - yc-software/qm: Multiplayer agent harness for work

Multiplayer agent harness for work. Contribute to yc-software/qm development by creating an account on GitHub.
github.com

Y Combinator (@ycombinator)

We’ve decided to open-source a multi-agent harness we use internally at YC.

We call it “QM” and it’s meant to be easy to customize, like Hermes or OpenClaw, but useful for a whole company. We use it across accounting, legal, events, and engineering (including building QM itself!).

The whole project is under an MIT license. It is cloud-first and has Slack and web UI natively.

— https://nitter.net/ycombinator/status/2083243960684908768#m