My YC Paper Club talk on Prime Agent is out.
I talked about moving beyond naive prompting toward an agentic OS, and how eval-driven harness design can expose more of a model’s underlying capabilities through persistent computation, memory, and agent-to-agent communication.
Seth Karten
@sethkarten
Y Combinator @ycombinator
Harnesses often get dismissed as just scaffolding, just prompt engineering, and not real research. But that couldn't be farther from the truth. The same model weights that score 30% on ARC-AGI score 95% with a better harness.
So we gathered a group of researchers and founders
So we gathered a group of researchers and founders
3:29 PM UTC · Sep 7, 2026 · 25.6K Views
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