Smarter Models Killed the Harness. Here's What's Left — Jediah Katz, SpaceXAI
AI Engineer — Oct 19, 2026 — talk
Why watch
Jediah Katz, former Cursor harness engineer and now at SpaceX, explains why sophisticated agent harnesses no longer provide competitive advantage as models internalize harness-taught skills via data flywheels, yet argues harnesses remain critical for infrastructure ownership, trust, security, and efficiency. He discusses emerging frontiers like Grokbot and predicts 90% of agent work will run locally on laptops within six months. Target audience: AI engineers, tool builders, and technical leaders evaluating AI development infrastructure.