Diptish09 draws attention to Kathryn Wu’s GTMbrain, a forkable GTM system (shared…

Brief

Diptish09 draws attention to Kathryn Wu’s GTMbrain, a forkable GTM system (shared 2026-04-08) created from lessons by Wu and other YC founders. GTMbrain is designed to be run and iterated inside Claude or Codex/Claude Code—framed as a programmable GTM you can refine like Gstack—and the repo asks for PRs with improved workflows or examples.

title: @Diptish09: Didn’t expect to see GTM packaged like this.
You can literally run and refine your strategy inside C...
author: @Diptish09
contenttype: tweet
publication: Twitter/X
published: 2026-04-08T16:17:48+00:00
sourceurl: https://x.com/Diptish09/status/2041913410875801890

word_count: 77

Didn’t expect to see GTM packaged like this.
You can literally run and refine your strategy inside Claude.

Kathryn Wu (@kathrynwu1)

Everyone says “do GTM.”
Almost nobody gives you a great system.

So we built GTMbrain: a forkable GTM system based on lessons from me + other YC founders.

Run it in Codex or Claude Code to iterate with it just Iike Gstack.

And if you have better workflows or real examples, send a PR.

— https://nitter.net/kathrynwu1/status/2041909258988745013#m