Скачать или смотреть Harness Engineering: The Skill That Will Define 2026 for Solo Devs

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So... what's the best AI model right now? Claude? GPT? Gemini? I think that's the wrong question. And the data backs it up.

A new study tested every major frontier model on real professional tasks — and the best one only completed 24% of them. Meanwhile, Vercel stripped 80% of the tools from their agent and accuracy jumped from 80% to 100%. Manus rebuilt their entire framework five times in six months. The lesson every time? The model isn't the bottleneck. The harness is.

In this video I break down why the infrastructure around your AI model matters more than the model itself, what Vercel, Manus, OpenAI and Anthropic all figured out, and three things you can try today to make your coding agent actually reliable.


0:00 — Hook
0:15 — Who I am + Crafter's Lab
1:15 — You Keep Chasing the Best Model — And Your Agent Still Breaks
4:45 — Your Agent Chokes Because You Gave It Too Much
8:15 — Stop Agonizing Over Models — Fix What's Around Them
12:00 — Outro + Crafter's Lab Deep Dive

Join the crew at [crafterslab.dev](http://crafterslab.dev) — my live Notion workspace, prompt libraries, agent setups, SwiftUI patterns, Claude Code skills, and more. Built for solo devs who use AI like a real teammate.

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