Custom Harnesses Are the True Agent Leverage
omarsar0 · x · 2026-07-17
The post emphasizes that building custom harnesses for agents is a crucial leverage point.
It mentions Schema, a custom harness designed to make an agent "think like a physicist," claiming it can saturate ARC-AGI-3. The core argument is:
- Solving extremely hard agent problems requires more than just swapping models
- Designing the right harness can be more effective than simply piling on prompts
- Custom harnesses can steer agents toward specific reasoning styles and task structures
Related event: Schema Harness Sparks ARC-AGI-3 Debate(14 posts)→
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