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.
npx skills add agentscope-ai/OpenJudge --skill 03-ref-hallucination-arenagit clone --depth 1 https://github.com/agentscope-ai/OpenJudgeWrote 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.
[](https://agentmods.dev/skills/agentscope-ai/openjudge/03-ref-hallucination-arena)<a href="https://agentmods.dev/skills/agentscope-ai/openjudge/03-ref-hallucination-arena"><img src="https://agentmods.dev/badge/skills/agentscope-ai/openjudge/03-ref-hallucination-arena/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.
<a href="https://agentmods.dev/skills/agentscope-ai/openjudge/03-ref-hallucination-arena"><img src="https://agentmods.dev/badge/skills/agentscope-ai/openjudge/03-ref-hallucination-arena.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once 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 |
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- 02-ref-hallucination-arena — 100% identical, 2 lines differ
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:
- Load queries — from JSON/JSONL dataset
- Collect responses — BibTeX-formatted references from target models
- Extract references — parse BibTeX entries from model output
- Verify references — cross-check against Crossref / PubMed / arXiv / DBLP
- Score & rank — compute verification rate, per-field accuracy, discipline breakdown
- 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())
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.
- 1mo ago First seen · 261 lines · 101 tokens per session scan A ccd6d09688dd
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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