llm-eval

llm-eval is a skill for Claude Code, Codex from UitbreidenOS/UitKit. It costs 43 tokens per session (2,690 once invoked), scanned A, original, no licence file.

A guide to evaluating large language model applications with test datasets and quality measurements. It covers methods such as RAGAS, G-Eval, and evaluations judged by another language model.

In plain words
What is it for?
Creating evaluation datasets, choosing metrics, running automated checks, and tracking the quality of AI features.
Why use it?
It helps you measure answer quality, monitor changes in production, and spot regressions before or after a release.

Skill for Claude CodeCodex

Part of the uitkit-ai-engineering plugin — 143 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/uitbreidenos/uitkit/llm-eval
Any agent
npx skills add UitbreidenOS/UitKit --skill llm-eval
Clone the repo
git clone --depth 1 https://github.com/UitbreidenOS/UitKit

Made for: Claude Code, Codex.

Or install uitkit-ai-engineering, the plugin that ships this one along with the rest of its 143 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for llm-eval

README.md
[![agentmods](https://agentmods.dev/badge/skills/uitbreidenos/uitkit/llm-eval.svg)](https://agentmods.dev/skills/uitbreidenos/uitkit/llm-eval)
Your own site
<a href="https://agentmods.dev/skills/uitbreidenos/uitkit/llm-eval"><img src="https://agentmods.dev/badge/skills/uitbreidenos/uitkit/llm-eval.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,690 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00043 $0.02690
Opus 5 $0.00022 $0.01345
Sonnet 5 $0.00009 $0.00538
Haiku 4.5 $0.00004 $0.00269

Measured yesterday against content hash 6039583d7424, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

llm-eval scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/uitkit-ai-engineering/skills/llm-eval/SKILL.md · 327 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 327 lines · 43 tokens per session scan A 6039583d7424

Subscribe to this mod's changes

llm-eval is a skill published in the GitHub repository UitbreidenOS/UitKit (14 stars, last pushed 2mo ago), with no licence file. It adds 43 tokens to every session and 2,690 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.