llm-as-judge

llm-as-judge is a skill for Claude Code, Codex from Pixel-Process-UG/superkit-agents. It costs 67 tokens per session (2,427 once invoked), scanned A, original, MIT.

A guide for evaluating qualities that ordinary tests cannot measure reliably, such as writing tone, visual appeal, user experience, documentation clarity, and code readability. It uses a language model and a defined scoring rubric.

In plain words
What is it for?
Use it to assess documentation, error messages, interface copy, visual design, user flows, or code readability against stated criteria.
Why use it?
It provides a repeatable way to review subjective results instead of treating personal impressions as a pass or fail.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to assess documentation, error messages, interface copy, visual design, user flows, or code readability against stated criteria.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pixel-process-ug/superkit-agents/llm-as-judge
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.

Any agent
npx skills add Pixel-Process-UG/superkit-agents --skill llm-as-judge
Clone the repo
git clone --depth 1 https://github.com/Pixel-Process-UG/superkit-agents

Made for: Claude Code, Codex.

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-as-judge

README.md
[![agentmods](https://agentmods.dev/badge/skills/pixel-process-ug/superkit-agents/llm-as-judge/github.svg)](https://agentmods.dev/skills/pixel-process-ug/superkit-agents/llm-as-judge)
Your own site
<a href="https://agentmods.dev/skills/pixel-process-ug/superkit-agents/llm-as-judge"><img src="https://agentmods.dev/badge/skills/pixel-process-ug/superkit-agents/llm-as-judge/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for llm-as-judge

Your own site · 80×15
<a href="https://agentmods.dev/skills/pixel-process-ug/superkit-agents/llm-as-judge"><img src="https://agentmods.dev/badge/skills/pixel-process-ug/superkit-agents/llm-as-judge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 5.1 $0.00067 $0.02427
Opus 5.5 $0.00027 $0.00971
Sonnet 5.5 $0.00013 $0.00485
Haiku 4.5 $0.00007 $0.00243

Measured 1mo ago against content hash 2bf0cabf0636, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

llm-as-judge 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 1mo ago.

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.

templates/skills/llm-as-judge/SKILL.md · 246 lines

How it starts

The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LLM-as-Judge

Overview

Some quality criteria are inherently subjective — tone of voice, visual aesthetics, UX feel, documentation clarity, code readability. These cannot be verified by deterministic tests. The LLM-as-judge pattern provides structured, repeatable evaluation using an LLM reviewer with defined rubrics, ensuring subjective quality is measured consistently.

Announce at start: "I'm using the llm-as-judge skill to evaluate subjective quality."


Phase 1: Determine Evaluation Method

Goal: Decide whether LLM-as-judge is the right tool.

Decision Table: LLM-as-Judge vs Deterministic Tests

Criterion Type Method Example
Objective, measurable Deterministic test "Response time < 200ms"
Structural, verifiable Deterministic test "Returns valid JSON"
Subjective, qualitative LLM-as-judge "Error messages are friendly and helpful"
Aesthetic, perceptual LLM-as-judge "UI feels clean and modern"
Linguistic, tonal LLM-as-judge "Documentation is clear for beginners"
Holistic, experiential LLM-as-judge "The onboarding flow feels intuitive"

Rule of thumb: If you can write a boolean assertion, use a deterministic test. If evaluation requires judgment, use LLM-as-judge.

STOP — Do NOT proceed to Phase 2 until:

  • Confirmed that criteria are genuinely subjective
  • Deterministic testing has been ruled out
  • Specific artifacts to evaluate are identified

Phase 2: Define Rubric

Goal: Create evaluation dimensions with weights and anchor points.

Actions

  1. Define 3-5 evaluation dimensions
  2. Assign weights (must sum to 1.0)
  3. Define anchor points for each dimension (1=worst, 5=adequate, 10=best)
  4. Set passing threshold

Rubric Structure

Dimension Weight Scale Anchor: 1 Anchor: 5 Anchor: 10
[Name] 0.X 1-10 [Worst case] [Adequate] [Excellent]

Read the full file on GitHub · 246 lines

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. 1mo ago First seen · 246 lines · 67 tokens per session scan A 2bf0cabf0636

Subscribe to this mod's changes

llm-as-judge is a skill published in the GitHub repository Pixel-Process-UG/superkit-agents (3 stars, last pushed 7mo ago), licensed MIT. It adds 67 tokens to every session and 2,427 once invoked, about $0.0003 per session on Opus 5.5. 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.

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