Three xAI Engineers Built a Company in 72 Hours on Stream — Field Notes Now Open-Sourced
gaganghotra_ · x · 2026-09-20
Three xAI Grok Bot team engineers (Roshan Sadanani, Lauren Tan, etc.) live-streamed building and launching a product from an empty repo in 72 hours using their own agent platform. unicodef1wn compiled all three streams into the GitHub repo "grokbot-field-notes" plus a 24-page PDF guide.
What's inside:
- AGENTS.md: drop into your repo root so agents read context and stop guessing
- 40 antipatterns: every failure that broke live on air, with the rule each produced
- 69 bot roles: one job description per file, ready to paste
- 9 playbooks: eng, PM, founders, sales, SDR, support, post-sales, marketing
- Real economics: every cost quoted on stream and where tokens actually go
- Hour-by-hour 3-day timeline told as one story
Every rule came from a real, public, live failure — nothing theoretical.
More from coding & agent
- Building Agent Harnesses Part 2: Guardrails, maxAttempts and fixing agents that lie about task completion — TejasKumar_ · 2026-09-20
- Models are now improving the stack themselves, from security hardening to latency — rakyll · 2026-09-20
- OpenAI says 10,000 concurrent agents tackled Navier–Stokes, result in 88 hours — HotFlamingo9653 · 2026-09-20
- Agent memory design: promotion gates, expiry and veto beat 'remember everything' — sujingshen · 2026-09-20
- Early user review: Jev is fast but finds no killer use case over manual coding or Astra/Fable — CtrlAltDwayne · 2026-09-20
- Agent workflow: RFB scripts + tart macOS VM for autonomous UI iteration — craigbalding · 2026-09-20