03-ref-hallucination-arena

03-ref-hallucination-arena is a skill for Claude Code, Codex from agentscope-ai/OpenJudge. It costs 101 tokens per session (2,471 once invoked), scanned A, original, Apache-2.0.

A benchmark for testing whether language models recommend real academic papers. It verifies every cited paper with Crossref, PubMed, arXiv, and DBLP and measures citation accuracy and made-up references.

In plain words
What is it for?
Use it to compare models on academic reference requests, including discipline and publication-year constraints, and generate reports and charts.
Why use it?
It shows whether a model invents papers or gets details such as authors, dates, titles, and DOI identifiers wrong.

Skill for Claude CodeCodex

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

Good fit Use it to compare models on academic reference requests, including discipline and publication-year constraints, and generate reports and charts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentscope-ai/openjudge/03-ref-hallucination-arena
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 agentscope-ai/OpenJudge --skill 03-ref-hallucination-arena
Clone the repo
git clone --depth 1 https://github.com/agentscope-ai/OpenJudge

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 03-ref-hallucination-arena

README.md
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Your own site
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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 03-ref-hallucination-arena

Your own site · 80×15
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Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,471 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 $0.00101 $0.02471
Opus 5.5 $0.00040 $0.00988
Sonnet 5.5 $0.00020 $0.00494
Haiku 4.5 $0.00010 $0.00247

Measured 1mo ago against content hash ccd6d09688dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

03-ref-hallucination-arena 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/academic-eval/03-ref-hallucination-arena/SKILL.md · 261 lines

How it starts

The opening of the file, as written. The whole thing — 261 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reference Hallucination Arena Skill

Evaluate how accurately LLMs recommend real academic references using the OpenJudge RefArenaPipeline:

  1. Load queries — from JSON/JSONL dataset
  2. Collect responses — BibTeX-formatted references from target models
  3. Extract references — parse BibTeX entries from model output
  4. Verify references — cross-check against Crossref / PubMed / arXiv / DBLP
  5. Score & rank — compute verification rate, per-field accuracy, discipline breakdown
  6. Generate report — Markdown report + visualization charts

Prerequisites

# Install OpenJudge
pip install py-openjudge

# Extra dependency for ref_hallucination_arena (chart generation)
pip install matplotlib

Gather from user before running

Info Required? Notes
Config YAML path Yes Defines endpoints, dataset, verification settings
Dataset path Yes JSON/JSONL file with queries (can be set in config)
API keys Yes Env vars: OPENAI_API_KEY, DASHSCOPE_API_KEY, etc.
CrossRef email No Improves API rate limits for verification
PubMed API key No Improves PubMed rate limits
Output directory No Default: ./evaluation_results/ref_hallucination_arena
Report language No "en" (default) or "zh"
Tavily API key No Required only if using tool-augmented mode

Quick start

CLI

# Run evaluation with config file
python -m cookbooks.ref_hallucination_arena --config config.yaml --save

# Resume from checkpoint (default behavior)
python -m cookbooks.ref_hallucination_arena --config config.yaml --save

# Start fresh, ignore checkpoint
python -m cookbooks.ref_hallucination_arena --config config.yaml --fresh --save

# Override output directory
python -m cookbooks.ref_hallucination_arena --config config.yaml \
  --output_dir ./my_results --save

Python API

import asyncio
from cookbooks.ref_hallucination_arena.pipeline import RefArenaPipeline

async def main():
    pipeline = RefArenaPipeline.from_config("config.yaml")
    result = await pipeline.evaluate()

    for rank, (model, score) in enumerate(result.rankings, 1):
        print(f"{rank}. {model}: {score:.1%}")

asyncio.run(main())

Read the full file on GitHub · 261 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 · 261 lines · 101 tokens per session scan A ccd6d09688dd

Subscribe to this mod's changes

03-ref-hallucination-arena is a skill published in the GitHub repository agentscope-ai/OpenJudge (888 stars, last pushed 5d ago), licensed Apache-2.0. It adds 101 tokens to every session and 2,471 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 2026-09-12.

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