---
schema: 1
type: term
title: '**harness**'
description: >-
  A **harness** is the structured, repeatable setup of tests and prompts used to
  evaluate and compare AI models side by side.
canonical: 'https://liquidgold.cc/channel/everyinc/explore/term/harness-5b5b1721b10b'
markdown: 'https://liquidgold.cc/channel/everyinc/explore/term/harness-5b5b1721b10b.md'
llms: null
parent: 'https://liquidgold.cc/channel/everyinc/llms.txt'
channel: everyinc
updated: '2026-10-23T22:12:35.346Z'
language: null
children: []
---


# \*\*harness\*\*

Canonical: https://liquidgold.cc/channel/everyinc/explore/term/harness-5b5b1721b10b

Parent: [Channel index](https://liquidgold.cc/channel/everyinc/llms.txt)

## Definition

A **harness** is the structured, repeatable setup of tests and prompts used to evaluate and compare AI models side by side.

In this channel's material, a **harness** is the structured setup you use to run a model comparison — the fixed set of tasks, prompts, and evaluation steps you apply the same way each time. It's what makes a _vibe check_ repeatable: instead of judging a model from one-off impressions, you run the same harness across models so the results can actually be compared. [^193e20c6-de46-5ac3-8500-7ef4ad80b80b@0]