'Harness Engineering' Rises: Custom Scaffolds Become the Foundation of AI-Native Companies
omarsar0 · x · 2026-08-22
Elvis (omarsar0) observes that companies he works with are building custom harnesses for evals, RL environments, research, design, coding, marketing and more. He is now assembling a set of best practices, tools, skills and guides around this emerging discipline.
Context from his earlier posts:
- He advocates "own your harness";
- Wishes the Claude Code harness were open source;
- Argues custom harnesses are now foundational infrastructure for AI-native companies — he builds mostly on Pi and Hermes Agent, and believes open-source harnesses are the future.
Related event: Custom Harness Engineering Emerges as Foundation of AI-Native Companies(2 posts)→
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