I Watched 6 AI Agents Design an App In Real Time And It Blew My Mind | Tom Krcha

I Watched 6 AI Agents Design an App In Real Time And It Blew My Mind | Tom Krcha

Author: Peter Yang March 8, 2026 Duration: 32:42

Tom is the CEO of Pencil, one of the coolest AI design tools that I’ve ever tried. Watching 6 AI agents design a beautiful app in real-time will genuinely blow your mind. Tom showed me how it all works under the hood (a simple JSON file?!) and how you can use Pencil to design right where you code in Cursor, Claude Code, and more.


Tom and I talked about:

(00:00) Watch 6 AI agents design an app together

(03:09) Demo: Designing a travel app with an AI agent swarm

(08:20) Redesigning screens in different styles on the fly

(13:20) The Pencil extension that turns Cursor into a design tool

(15:07) One prompt to go from visual design to React website

(19:00) Using design systems to keep your AI output consistent

(22:02) From side project to 100K users in 8 weeks

(27:44) Why vibe coding reminds Tom of the Flash era

(30:05) Humanizing AI with cursors, craft, and personality


Thanks to our sponsors:

Linear: The AI agent platform for modern teams https://linear.app/behind-the-craft

Granola: The AI meeting notes app that saves you hours. https://granola.ai/peter

Replit: From 0 to full stack app in 2 min https://replit.com/?utm_source=creator&utm_medium=organic&utm_campaign=creator_program&utm_content=peteryang


Get the takeaways: https://creatoreconomy.so/p/i-watched-6-ai-agents-design-an-app-in-real-time-tom-krchaWhere to find Tom:

X: https://x.com/tomkrcha

Website: https://www.pencil.dev/Subscribe to this channel - more interviews coming soon!


For anyone building the future, Behind the Craft is a conversation with Peter Yang that moves beyond theory and into the tangible details of creation. This podcast lives in the messy, rewarding space where ideas become real products. Each episode is built on candid interviews with experts who have been in the trenches, dissecting the pivotal decisions, the unexpected hurdles, and the hard-won lessons that rarely make it into a polished case study. You’ll hear the unvarnished stories behind the features and companies shaping our world, focusing on the practical frameworks and mental models that effective product leaders and creators rely on daily. It’s about understanding the craft from the inside out-the strategic shifts, the team dynamics, the user insights that truly move the needle. Tune in for a direct, no-fluff dialogue designed to accelerate your own journey, providing actionable guidance you can apply immediately to level up your own work. This is where the blueprint meets the build.
Author: Language: English Episodes: 100

Behind the Craft
Podcast Episodes
How OpenAI's Codex Team Builds with Codex (43 Min) | Alex & Romain [not-audio_url] [/not-audio_url]

Duration: 43:16
Alex is the product lead for Codex and Romain runs developer experience. They gave me a rare inside look at how the Codex team operates, including how they build products with Codex and how they ship without traditional…
Master Claude Code + Figma MCP for Design in 50 Min | Felix Lee [not-audio_url] [/not-audio_url]

Duration: 50:15
Felix is an expert at using Claude Code and Figma MCP to design and build apps. Watch as he demos how you can build apps that look exactly like their Figma designs, build a game from a FigJam flow cart, and convert code…