data-verify

data-verify is a skill for Claude Code from FrontisAI/NatureBench. It costs 54 tokens per session (1,785 once invoked), scanned A, original, MIT.

An independent check of the data prepared for a machine-learning benchmark from a research paper. It verifies which data the solver should receive, whether evaluation settings are valid, and whether files and descriptions match.

In plain words
What is it for?
Use it to review the boundary between input data and the paper’s algorithm, check evaluation settings and separability, inspect data folders, and produce a report for human review.
Why use it?
It can catch classification or data-preparation mistakes before the benchmark is built, without changing the existing results or data.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: agent in frontmatter; installed under .agents/ (shared by several agents).

Good fit Use it to review the boundary between input data and the paper’s algorithm, check evaluation settings and separability, inspect data folders, and produce a report for human review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/frontisai/naturebench/data-verify
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 FrontisAI/NatureBench --skill data-verify
Clone the repo
git clone --depth 1 https://github.com/FrontisAI/NatureBench

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 data-verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/frontisai/naturebench/data-verify/github.svg)](https://agentmods.dev/skills/frontisai/naturebench/data-verify)
Your own site
<a href="https://agentmods.dev/skills/frontisai/naturebench/data-verify"><img src="https://agentmods.dev/badge/skills/frontisai/naturebench/data-verify/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 data-verify

Your own site · 80×15
<a href="https://agentmods.dev/skills/frontisai/naturebench/data-verify"><img src="https://agentmods.dev/badge/skills/frontisai/naturebench/data-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,785 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 pass 7 Sept 2026
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 $0.00054 $0.01785
Opus 5.5 $0.00022 $0.00714
Sonnet 5.5 $0.00011 $0.00357
Haiku 4.5 $0.00005 $0.00178

Measured 2mo ago against content hash 595f88d6b8c9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-verify 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 2mo 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.

naturegym/.agents/skills/data-verify/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data-Verify Skill

Verify data components produced by paper-filter and data-check. Outputs a verification report (data_verify_result.json) for human review — does not modify filter_result.json or data directories.

Context

paper-filter (Level 1-3) and data-check (Level 4) run automatically and may produce systematic errors in data component classification, evaluation setting identification, and separability descriptions. This skill performs independent verification and outputs an actionable report.

Core Principle

Provide Algorithm A with the same initial conditions it had, but do not include any of A's own operations or outputs.

Why: The goal is not to reproduce the paper's algorithm — it is to test whether a Solver can independently solve the same ML problem using any method, potentially surpassing the original. The benchmark gives the Solver the same starting point as the paper's authors, then scores its output against ground truth using the paper's metrics, with the paper's reported scores as baselines for comparison. Including A's outputs would leak solutions; excluding legitimate initial data would make the task unfairly harder.

Data Component Classification

See the classification table in references/check_rules.md § Terminology Reference for the six categories (initial_state, data_preparation, algorithm_preprocessing_output, algorithm_output, external_resource, irrelevant) and their definitions.

Input Requirements

Before invoking this skill, provide:

  1. Paper Folder Path: Directory containing paper files and data-check results

Paper folder must contain:

  • filter_result.json (with final_result.data_check_passed == true)
  • repositories/ (cloned code repositories from data-check)
  • data/ (acquired data from data-check, organized per setting)
  • preprocessed/ (paper-preprocess output: text.md, figures/, tables/, links.json)
  • {paper_id}.pdf and {paper_id}.html (original paper, for additional reference)

Read the full file on GitHub · 106 lines

Files

What ships with it

2 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. 2mo ago First seen · 106 lines · 54 tokens per session scan A 595f88d6b8c9

Subscribe to this mod's changes

data-verify is a skill published in the GitHub repository FrontisAI/NatureBench (137 stars, last pushed 17d ago), licensed MIT. It adds 54 tokens to every session and 1,785 once invoked, about $0.0002 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 2026-08-30.

Related

data-verify compared with skills from other repositories

data-verify next to 6 skills from other repositories
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data-verifyFrontisAI/NatureBenchSkill13717d agoMITA54Claude Code
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