test-builder

Generate evaluation suites with fixtures, rubrics, and harness configurations for A/B testing.

Updated Mar 5, 2026
One-click install
npx skills add https://github.com/zivtech/joyus-desktop --skill test-builder-zivtech
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-builder
Source: https://github.com/zivtech/joyus-desktop/tree/main/.claude/skills/test-builder
Command: npx skills add https://github.com/zivtech/joyus-desktop --skill test-builder-zivtech

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill solves the problem of unverified claims regarding AI skill performance by providing a structured, statistical framework to measure quality against baselines, replacing anecdotal evidence with quantifiable data.

Core Features & Use Cases

  • Automated Eval Scaffolding: Generates fixtures, rubrics, and harness configurations based on a comprehensive 8-phase evaluation protocol.
  • Statistical Rigor: Implements Wilcoxon signed-rank tests, bootstrap confidence intervals, and effect size calculations to ensure results are statistically significant.
  • Use Case: When a team claims a new critic skill is superior to a baseline prompt, this Skill generates a 25-fixture suite to prove the improvement through A/B testing and pilot validation.

Quick Start

Use the test-builder skill to generate an evaluation suite for the harsh-critic meta-skill.

Frequently Asked Questions about test-builder

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

FAQPage Schema
How do I build an evaluation suite for A/B testing LLM outputs?

An evaluation suite for A/B testing requires generating fixtures, rubrics, and harness configurations to measure LLM quality against baselines. This replaces anecdotal evidence with quantifiable, statistically significant data for reproducible performance validation.

What statistics are needed for reproducible LLM benchmarking?

Reproducible LLM benchmarking requires Wilcoxon signed-rank tests, bootstrap confidence intervals, and effect size calculations. Applying these statistical tests ensures benchmarking results are significant and validates quality improvements over baseline responses.

How do I automate scoring for meta-skill performance validation?

Automate scoring for meta-skill performance validation by generating harness configurations and rubrics. This applies an 8-phase evaluation protocol to produce reproducible evidence, domain sampling, and automated scoring of skill outputs.

How many test fixtures do I need to validate a new LLM skill?

Validating a new LLM skill typically requires a 25-fixture suite to prove improvement through A/B testing and pilot validation. This sample size satisfies statistical requirements for reproducible evidence and domain sampling.

Does evaluation scaffolding work for comparing prompts against baseline responses?

Evaluation scaffolding works for comparing prompts by generating fixtures and rubrics against baseline LLM responses. It applies statistical tests to ensure A/B testing results are significant and reproducible.