Elliot's Harness Lab

Builder notes for practical AI

Elliot Bai: AI Agent, FDE, and Vibe Coding Field Notes

Serial entrepreneur and co-founder of Mew.Design. Built an Android parking payment system, worked on Chia mining machine R&D, and spent time inside large tech companies.

I built the world's first design Agent: Mew.Design. Today I explore how AI creates value in real companies, real products, and real workflows.

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Working fields / 03

Focused On

  1. 01 Enterprise AI Transformation Enterprise Harness, FDE, and enterprise Agents
  2. 02 Agent Framework Research Multi-Agent, Sub-Agent, Memory, and Agent Loops
  3. 03 Production AI Coding From Cursor and Claude Code to Codex

Recent publishing

Recent Field Notes

All Posts
  1. 01 Loop Engineering in Practice: How I Let AI Work on Its Own in a Million-Scale ARR Product Vibe Coding
  2. 02 Codex Series 01: I Gave an A-Share Account to AI. One Month Later, It Doubled Vibe Coding
  3. 03 What Is Loop Engineering? What a Year of Building MewDesign Taught Me Vibe Coding
  4. 04 Going Global on Zero Budget: How We Reached Paid Users in 80+ Countries with SEO Design Agent
  5. 05 Why AI Design Agents Should Speak HTML Design Agent
  6. 06 AI-Native Products Have Different Unit Economics AI Native Product
  7. 07 How I Led My Human Colleagues to Double Growth in One Month Enterprise AI / FDE
  8. 08 An AI Product Made Money with Zero Ads and Zero Marketing Design Agent