eval-judge

eval-judge is a skill for Claude Code, Codex from malloydata/publisher. It costs 83 tokens per session (3,348 once invoked), scanned A, original, MIT.

A judge skill for deciding whether one answer matches its verified golden answer. It also records whether the golden answer itself appears trustworthy.

In plain words
What is it for?
Use it during evaluation runs to issue one answer verdict, assess the reference answer, and record the judging version and evidence.
Why use it?
It gives each evaluation attempt a separate, consistent verdict and prevents the answerer from judging its own work. It handles close matches, refusals, and structured answer comparisons.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it during evaluation runs to issue one answer verdict, assess the reference answer, and record the judging version and evidence.

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Install with agentmods
npx agentmods add skills/malloydata/publisher/eval-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 malloydata/publisher --skill eval-judge
Clone the repo
git clone --depth 1 https://github.com/malloydata/publisher

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 eval-judge

README.md
[![agentmods](https://agentmods.dev/badge/skills/malloydata/publisher/eval-judge/github.svg)](https://agentmods.dev/skills/malloydata/publisher/eval-judge)
Your own site
<a href="https://agentmods.dev/skills/malloydata/publisher/eval-judge"><img src="https://agentmods.dev/badge/skills/malloydata/publisher/eval-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 eval-judge

Your own site · 80×15
<a href="https://agentmods.dev/skills/malloydata/publisher/eval-judge"><img src="https://agentmods.dev/badge/skills/malloydata/publisher/eval-judge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,348 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 26
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00083 $0.03348
Opus 5.5 $0.00033 $0.01339
Sonnet 5.5 $0.00017 $0.00670
Haiku 4.5 $0.00008 $0.00335

Measured 15d ago against content hash 26661dc2eb1c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

eval-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 15d 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.

skills/eval-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.

The judge

JUDGE_VERSION: 6

This skill IS the judge. One fresh judge subagent is spawned per attempt, with this skill installed in its workspace and the case materials in its prompt. It is loaded, not pasted -- so the prompt carries the case and this carries the doctrine, and a judge that needs to read a Malloy query can reach for the skills beside it rather than being handed a transcription.

Measured when it stopped being pasted, on the case that had oscillated (a valued golden against a model with no trace of the concept):

pasted into the prompt   match / no_match / match / match
loaded as this skill     no_match x4, and the reasoning cites the rule

It costs about 2.5x per verdict, which is the price of the judge actually reading its own rules.

Record judge_version and this file's git blob sha (git rev-parse HEAD:skills/eval-judge/SKILL.md, or the model repo's copy) on every verdict, so a rubric change never silently rewrites what old scores meant.

The judge is not blind. It sees the golden. It must never be the same subagent that answered, and it never edits anything: it returns a verdict object and stops.

Read one of these before you decide

This file is the decision procedure. Four situations have their own rules, and each is a file beside this one. Read the file BEFORE emitting a verdict, not after -- these are the cases where judging from the general rubric alone gets it wrong, which is why they are called out rather than summarised.

If Read
the answer declines, or gives no value at all reference/refusal.md
the golden itself looks wrong to you reference/suspect-goldens.md
you are judging retrieval, not an answer reference/retrieval-judge.md
you are AUTHORING a case rather than judging one reference/writing-rubrics.md

The first row is the one that catches people. A refusal is only exempt from containment when golden.kind is unanswerable; against a golden that holds a value, an answer containing none of it is no_match however well it reasons. reference/refusal.md is the whole rule.

Read the full file on GitHub · 246 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 15d ago Changed 26661dc2eb1c
  2. 1mo ago Changed · +44 lines 1ec87bd81b4d
  3. 1mo ago Changed · +22 lines 9c489f6ae339
  4. 1mo ago First seen · 180 lines · 83 tokens per session scan A 8e698227e286

Subscribe to this mod's changes

eval-judge is a skill published in the GitHub repository malloydata/publisher (118 stars, last pushed today), licensed MIT. It adds 83 tokens to every session and 3,348 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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