eval-harness

Define capability and regression evals with code-based, model-based, or human graders.

Updated Jul 27, 2026
One-click install
npx skills add https://github.com/kouiso/designdiff --skill eval-harness-kouiso
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: eval-harness
Source: https://github.com/kouiso/designdiff/tree/main/.claude/skills/eval-harness
Command: npx skills add https://github.com/kouiso/designdiff --skill eval-harness-kouiso

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a structured framework for evaluating AI code sessions, enabling rigorous testing and performance measurement through eval-driven development (EDD) principles.

Core Features & Use Cases

  • Define and Track Evals: Create capability and regression evals before implementation.
  • Measure Reliability: Utilize pass@k and pass^k metrics to quantify AI performance.
  • Use Case: Integrate this Skill into your AI development workflow to ensure new features don't break existing functionality and to benchmark AI model improvements over time.

Quick Start

Define a new capability evaluation for a feature named 'user-authentication'.

Frequently Asked Questions about eval-harness

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is eval-driven development for AI code sessions?▼

Eval-driven development is a formal evaluation framework that defines capability and regression evals before implementation to rigorously test and measure AI code performance.

How do I measure AI reliability using pass@k and pass^k metrics?▼

You measure AI reliability by applying pass@k and pass^k metrics within an evaluation framework to quantify AI model performance and track improvements over time.

How do I set up regression testing for AI development?▼

Set up regression testing for AI development by defining regression evals within an evaluation framework to ensure new features do not break existing functionality during continuous integration.

Can I use code-based and model-based graders to evaluate AI outputs?▼

Yes, you can grade AI outputs using code-based, model-based, or human graders within an evaluation framework to assess capability and regression eval results.

Does this evaluation framework require external dependencies to run?▼

No, this evaluation framework operates without external dependencies, using included scripts and references to implement eval-driven development principles for AI code sessions.

When should I use a formal evaluation framework for AI development?▼

Use a formal evaluation framework for AI development when you need to benchmark model improvements, define capability evals prior to implementation, and facilitate continuous integration testing.