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SKILL.md

ai-evals

Agent skill fromRefoundAI/lenny-skills

Help users build robust infrastructure for measuring, monitoring, and iterating on AI product performance using human, code-based, and LLM-as-a-judge methodologies.

How to install ai-evals

install ai-evals
# install the lenny-skills pack with the skills CLI
npx skills add RefoundAI/lenny-skills

# or add only this skill to Claude Code: copy the folder

skills/ai-evals/

# into

~/.claude/skills/ai-evals/ (all projects)

.claude/skills/ai-evals/ (one project)

skills/ai-evals/SKILL.md

MITFull file
1# AI Evaluation Strategy
2
3Move beyond vibe checks to systematic, empirical measurement of AI product quality and reliability.
4
5Help the user with ai evaluation strategy using insights from 11 guests and posts across Lenny's Podcast and Newsletter.
6
7## How to Help
8
91. **Identify Failure Modes** - Help the user conduct error analysis on real traces to find where the system specifically breaks.
102. **Select Eval Methods** - Recommend the right mix of human, code, and LLM judges based on the specific technical use case.
113. **Build Gold Sets** - Assist in curating a reference dataset of high-quality examples to act as the ground truth for your application.
124. **Operationalize** - Guide the user in integrating these evaluations into a CI/CD pipeline for continuous quality improvement.
13
14## Core Principles
15
16### Automate the Value Chain
17Brendan Foody: "I think that for enterprises especially, the core way to think about it is how can they build a test or systematic way to measure how well AI automates their core value chain? So if it's an architecture firm that's producing these architecture diagrams of what they provide to their end customer, how can they effectively measure that? And each company has its own value chain or maybe a handful of them if it's a multi-product company."
18
19Identify the core deliverables unique to your business and develop systematic tests to measure how accurately AI can replicate those specific tasks.
20
21### Prioritize Subjective Excellence
22…

Excerpt shown under the repository's MIT license.

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