promptfoo-evaluation SKILL.md skillA
promptfoo-evaluation from daymade/claude-code-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add daymade/claude-code-skills/promptfoo-evaluation@git:20260302.4f07976Pins git:20260302.4f07976 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- daymade/claude-code-skills
- Path
promptfoo-evaluation/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260302.4f07976, committed Mar 2, 2026
- First version recorded
- Dec 20, 2025
- Size
- 12,210 bytes
- Repository stars
- 1,485
- License
- MIT
Configures and runs LLM evaluation using Promptfoo framework. Use when setting up prompt testing, creating evaluation configs (promptfooconfig.yaml), writing Python custom assertions, implementing llm-rubric for LLM-as-judge, or managing few-shot examples in prompts. Triggers on keywords like "promptfoo", "eval", "LLM evaluation", "prompt testing", or "model comparison".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Promptfoo Evaluation
## Overview
This skill provides guidance for configuring and running LLM evaluations using [Promptfoo](https://www.promptfoo.dev/), an open-source CLI tool for testing and comparing LLM outputs.
## Quick Start
```bash
# Initialize a new evaluation project
npx promptfoo@latest init
# Run evaluation
npx promptfoo@latest eval
# View results in browser
npx promptfoo@latest view
```
## Configuration Structure
A typical Promptfoo project structure:
```
project/
├── promptfooconfig.yaml # Main configuration
├── prompts/
│ ├── system.md # System prompt
│ └── chat.json # Chat format prompt
├── tests/
│ └── cases.yaml # Test cases
└── scripts/
└── metrics.py # Custom Python assertions
```
## Core Configuration (promptfooconfig.yaml)
```yaml
# yaml-language-server: $schema=https://promptfoo.dev/config-schema.json
description: "My LLM Evaluation"
# Prompts to test
prompts:
- file://prompts/system.md
- file://prompts/chat.json
# Models to compare
providers:
- id: anthropic:messages:claude-sonnet-4-6
label: Claude-Sonnet-4.6
- id: openai:gpt-4.1
label: GPT-4.1
# Test cases
…Read the whole file at its exact version.
How to install
mdr add daymade/claude-code-skills/promptfoo-evaluation@sha256:dfe42fda246f589cThe line at the top of this page pins the label git:20260302.4f07976, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_475vvqsiqwrcvkgd)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Dec 20, 2025 and Mar 2, 2026, about one every 36 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260302.4f07976 latest | 2026-03-02 | 4f07976 | 12,210 B | A | view · diff |
| git:20260224.11b7539 | 2026-02-24 | 11b7539 | 12,205 B | A | view · diff |
| git:20251220.4e3a541 | 2025-12-20 | 4e3a541 | 9,804 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12210 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
daymade/claude-code-skills · 1,485 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_475vvqsiqwrcvkgd GET https://markdownregistry.com/api/v1/resolve?ref=daymade/claude-code-skills/promptfoo-evaluation GET https://markdownregistry.com/api/v1/blob/dfe42fda246f589cdc3f6f6f559e1861dfbc4ccda284913817e39b9deb2cb2f9
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Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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