Building a Software Factory that actually works (Full Course)
Ras Mic joins Greg Isenberg to explain how to build a software factory, a structured workflow using AI agents and markdown files to ship code at scale without conflicts or quality drops.
The gist
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Run each new feature in its own git branch so multiple agents can build simultaneously without overwriting each other's work.
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Use a code review agent that gives confidence scores on pull requests and sends agents back to fix work that scores below your threshold.
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Require before and after screenshots or videos as evidence that an agent actually completed a task, which catches hallucinations without needing to read code.
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The whole system relies on markdown files, not any one platform, so you can swap between Claude, GPT, or other models without rebuilding your process.
"You probably went on Codex, Claude Code, Cursor, whatever it is, and you just typed... This is me using Cursor cloud agents — it says 'proof of improvement' and this is a video of the agent at work using the app."
▶ Play at 2:4858 creators recommend it, including Riley Brown, Claire Vo, and JD Ross.
See all on the Cursor page"There's this skill called GP loop which uses a third-party service named Greptile, which is a code review agent. If you're really serious about building software and it's going to be used by users, I highly suggest using some code review agent. Greptile is my favorite. It leav..."
▶ Play at 22:302 creators recommend it, including Ross Mike.
See all on the Greptile pageWhat they recommend · 3 picks
"Every new feature starts in a fresh git worktree branched from origin main so agents can work in parallel without conflicts. Never build on main. A worktree is basically a copy ..."
"There's this skill called GP loop which uses a third-party service named Greptile, which is a code review agent. If you're really serious about building software and it's going ..."
"You probably went on Codex, Claude Code, Cursor, whatever it is, and you just typed... This is me using Cursor cloud agents — it says 'proof of improvement' and this is a video ..."
Greg, Ras, This Week in Startups and Riley agree on 35 things
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