AI Briefing
KO

An Answer to the Harness Controversy

·2026.07.30 09:00

Key point

By splitting AI harnesses into 'HOW' and 'WHAT,' their essential value has been defined.

Details

The debate over the usefulness of the Harness that controls AI models arises because the harness is viewed as a single lump. In fact, a harness is a combination of two elements: HOW (method) and WHAT (intent).

HOW refers to the instructions that tell the model the steps to perform. Like Richard Sutton's 'Bitter Lesson,' its value declines as the model gets smarter, and as the model's performance rises, it starts to feel like an unnecessary configuration file.

WHAT, on the other hand, contains the user's identity, goals, context, and the criteria for what counts as a 'good outcome.' As the model advances, this context exerts even greater power, and it holds a unique value that the model provider cannot substitute for.

Ultimately, the core of the harness lies in Intent Engineering, which conveys the user's intent accurately without interfering with the model's execution. The model handles execution (HOW), and the harness creates true value by conveying context (WHAT).

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