Behind the Craft

How This Ex-Meta L8 Engineer Ships 40 PRs a Day with AI Agents | Kun Chen

Behind the Craft

Show Notes

Kun is an ex-L8 principal engineer at Meta and Microsoft who now ships 40 PRs a day without manually reviewing code. In our episode, he walked through the free tools he built to make that possible: Lavish for visual planning in HTML artifacts, Treehouse for parallel agents, and No Mistakes for catching AI coding errors before they make it to production.

Kun and I talked about: (00:00) Why he doesn't review code anymore (01:04) Agentic engineering: Plan, code, validate (06:22) Demo: Fixing an AI tutor screen with agents (08:40) Demo: Why HTML is better than markdown for planning (19:53) How to turn a rough idea into an AI-ready spec (23:21) How Kun runs 20-30 agents in parallel (32:04) No Mistakes: Kun's free AI code review tool (45:19) What Kun checks before merging AI-written code (50:18) How to get better at agentic engineering

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Where to find Kun: GitHub: https://github.com/kunchenguid X: https://x.com/kunchenguid

Kun's free tools from the episode: Lavish (HTML editor): https://github.com/kunchenguid/lavish-axi Treehouse: https://github.com/kunchenguid/treehouse No Mistakes (AI code review): https://github.com/kunchenguid/no-mistakes

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