Built with AI: Day 3 with Jacob Posel and Cody Plofker

In this episode of Built with AI, Jacob Posel and Cody Plofker join Jack to talk about AI-built landing pages and how they run their agents. Chase Mohseni joins briefly at the start.

Cody offers brands a new landing page for $20K, paid only if it beats their current page in an agreed A/B test. If it loses, the brand keeps the page for free. Cody thinks a 5% conversion lift is a fair bar, and Jacob says that lift could be worth $50K to $100K to some brands.

Jack shows a skill that copies a reference site or a whole store into a theme. Cody warns that the copied page may perform poorly. His own skill turns a reference page into a wireframe, asks about the product, persona, traffic source and angle, then builds in the brand's design system. He says brand context, such as heat map data and customer surveys, matters most.

Jacob explains workers, a feature in the product he builds: specialists inside a general agent like Claude Code or Codex, each with its own skills and knowledge base. He says separate agents help people adopt AI and let teams give each agent different permissions.

Cody has models review each other's work because agents grade their own work too easily. Jacob's Codex reviewer checks API values against warehouse data in a separate process with fresh context. He says agents improve when they can read logs, open the site and run tests.

Jack keeps losing finished work on unmerged branches. Jacob suggests starting with a /ship command that merges and deploys, then adding checks when something breaks.

Chapters 00:00 Trying new models 02:42 Cody's $20K landing page offer 06:13 Copied pages, design systems and context 12:12 Workers, skills and separate agents 17:21 Models reviewing each other's work 20:44 Cody's Hermes agent on a Mac mini 23:13 Long agent runs and self-checks 26:55 Bringing a small team onto AI 29:21 Shipping finished work with /ship