Eval Harness Skill

Implement eval-driven development with capability and regression evals.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/MRenAIAgent/math_content_engine --skill eval-harness-skill-mrenaiagent
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Eval Harness Skill
Source: https://github.com/MRenAIAgent/math_content_engine/tree/main/.claude/skills/eval-harness
Command: npx skills add https://github.com/MRenAIAgent/math_content_engine --skill eval-harness-skill-mrenaiagent

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a structured framework for evaluating AI capabilities and regressions, ensuring reliability and preventing unintended side effects during development.

Core Features & Use Cases

  • Eval-Driven Development (EDD): Implement unit tests for AI, defining expected behavior before coding.
  • Capability Evals: Test new AI functionalities.
  • Regression Evals: Ensure existing functionality remains intact.
  • Metrics: Track reliability with pass@k and pass^k metrics.
  • Use Case: Before adding a new feature to an AI assistant, define capability evals to ensure it can perform the new task and regression evals to confirm existing features are unaffected.

Quick Start

Use the eval harness skill to define a new capability evaluation for user registration.

Frequently Asked Questions about Eval Harness Skill

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

FAQPage Schema
What is eval-driven development and how does it apply to AI features?

Eval-driven development defines expected AI behavior through unit tests before coding begins. It uses capability evaluations to test new functionalities and regression evaluations to ensure existing features remain unaffected during implementation.

How do I track AI reliability metrics during capability and regression testing?

AI reliability metrics track consistency using pass@k and pass^k measurements. These metrics integrate code-based, model-based, and human grading results to quantify performance during capability and regression evaluations.

How do I implement a formal evaluation framework for AI workflows?

Implement a formal evaluation framework by defining capability and regression evaluations, integrating code-based, model-based, and human grading, and tracking pass@k and pass^k metrics to ensure structured AI feature maintenance.

Can I use code-based, model-based, and human grading methods together for AI testing?

Yes, AI testing supports combining code-based, model-based, and human grading methods. Integrating these varied grading approaches within capability and regression evaluations provides comprehensive reliability tracking using pass@k and pass^k metrics.

When should I run regression evaluations in AI development?

Run regression evaluations before adding new AI features to prevent unintended side effects. They ensure existing functionality remains intact, maintaining overall system reliability alongside capability evaluations during feature implementation.