Proofrag

Q: What is a Claude Code skill and how does the Proofrag skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Proofrag is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-06-01

ai:llm

Evaluate a RAG or LLM app. Use when the user wants to test, score, benchmark, or catch regressions in a retrieval/RAG/LLM system, generate an evaluation/golden dataset from their docs, measure hallucination/groundedness/correctness, or gate CI on answer quality. Generates a golden set from the user's own corpus, runs LLM-as-judge plus retrieval metrics, and produces a shareable HTML scorecard.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Turn "did my change make the RAG better or worse?" into one reproducible command. You (the agent) wire the user's app to the kit; the kit does dataset generation, judging, and reporting.

What this skill does

Proofrag is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/proofrag/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user wants to test, score, benchmark, or catch regressions in a retrieval/RAG/LLM system, generate an evaluation/golden dataset from their docs, measure hallucination/groundedness/correctness, or gate CI on answer quality. Generates a golden set from the user's own corpus, runs LLM-as-judge plus retrieval metrics, and produces a shareable HTML scorecard.

Who uses this skill

The Proofrag Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 201,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/proofrag
curl -L https://claudskills.com/skills/proofrag/SKILL.md \
  -o ~/.claude/skills/proofrag/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/proofrag/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/proofrag/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\proofrag\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Proofrag Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/proofrag/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Proofrag skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Proofrag skill?

Use Proofrag when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Proofrag" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Proofrag skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Proofrag is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/unshDee/proofrag/blob/HEAD/skills/proofrag/SKILL.md
License: MIT
Author: unshDee

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

unshDee. (2026). Proofrag [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/proofrag/

BibTeX

@misc{proofrag-2026,
  author    = {unshDee},
  title     = {Proofrag [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/proofrag/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/proofrag.svg)](https://claudskills.com/skills/proofrag/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-10-04 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/proofrag/#security)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore