eval-integrity

eval-integrity is a skill for Claude Code from conorbronsdon/agent-skills. It costs 107 tokens per session (2,602 once invoked), scanned A, original, MIT.

A read-only audit of an AI benchmark repository, which is a project used to measure how well an AI system performs. It checks whether the benchmark's methods and published scores are credible.

In plain words
What is it for?
Use it before submitting or publishing a benchmark, applying for a grant, or defending a leaderboard. It reports which gaps could invalidate the results and which are minor.
Why use it?
It reveals missing evidence, contamination risks, and methodological weaknesses that could make results misleading or vulnerable to reviewer criticism.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions subagents.

Good fit Use it before submitting or publishing a benchmark, applying for a grant, or defending a leaderboard. It reports which gaps could invalidate the results and which are minor.

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Install with agentmods
npx agentmods add skills/conorbronsdon/agent-skills/eval-integrity
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 conorbronsdon/agent-skills --skill eval-integrity
Clone the repo
git clone --depth 1 https://github.com/conorbronsdon/agent-skills

Made for: Claude Code.

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-integrity

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/conorbronsdon/agent-skills/eval-integrity"><img src="https://agentmods.dev/badge/skills/conorbronsdon/agent-skills/eval-integrity.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,602 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 $0.00107 $0.02602
Opus 5.5 $0.00043 $0.01041
Sonnet 5.5 $0.00021 $0.00520
Haiku 4.5 $0.00011 $0.00260

Measured 1mo ago against content hash 5ecc3bf22007, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

eval-integrity 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.

eval-integrity/SKILL.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

eval-integrity — Benchmark Credibility Audit

User-invokable auditor for LLM evaluation and benchmark repos. It answers one question: if you published this benchmark's numbers, would they survive an adversarial reviewer?

Most benchmark repos have a runner and a leaderboard but lack the integrity scaffolding that makes a published score mean what it appears to mean. This skill checks for that scaffolding, names what is missing, and rates whether each gap invalidates published numbers or is nice-to-have.

The checks below were extracted from hardening a real agent benchmark (cot-bench, a private podcast-evals repo) for an external grant review. Where a check needs a concrete example, cot-bench file names appear as illustrations — they are hints for what good looks like, not paths the auditor expects to find in your repo.

This is the static-analysis cousin of code-review: same parallel-subagent orchestration, but the subagents audit eval methodology instead of code correctness.


Invocation: deliberately model-invocable — read-only audit; it reports and offers fixes, never edits the benchmark.

When to Use

  • Before submitting a benchmark to a grant, conference, or public leaderboard.
  • When someone says "I don't trust those numbers" and you need to know if they're right.
  • After building an eval, before publishing the first headline result.
  • Periodically, as a benchmark accretes models and the leaderboard becomes load-bearing.

When NOT to Use

  • A repo that is not an eval or benchmark (no scoring, no leaderboard, no judge). This skill has nothing to grade.
  • A toy eval with no published numbers and no intent to publish. Integrity scaffolding is overhead until someone relies on the score.

Step 1: Confirm the target is a benchmark and locate its parts

Target: $ARGUMENTS (path to the benchmark repo; if empty, assume the current directory).

Establish the repo is gradable, then map where the audit will look. Run from the target repo root:

Read the full file on GitHub · 165 lines

Files

What ships with it

3 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. 1mo ago First seen · 165 lines · 107 tokens per session scan A 5ecc3bf22007

Subscribe to this mod's changes

eval-integrity is a skill published in the GitHub repository conorbronsdon/agent-skills (10 stars, last pushed 21d ago), licensed MIT. It adds 107 tokens to every session and 2,602 once invoked, about $0.0004 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 2026-08-31.

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