bib-verify

bib-verify is a skill for Claude Code, Codex from agentscope-ai/OpenJudge. It costs 88 tokens per session (681 once invoked), scanned A, original, Apache-2.0.

A reference checker for BibTeX files, which are lists of sources used in academic writing. It compares each entry with CrossRef, arXiv, and DBLP, then marks it verified, suspect, or not found.

In plain words
What is it for?
Use it to check a .bib file for fabricated references and create a report with the verification results.
Why use it?
It helps catch invented or incorrect citations before they appear in a paper. It also shows which details, such as the title, authors, year, or DOI, do not match.

Skill for Claude CodeCodex

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

Good fit Use it to check a .bib file for fabricated references and create a report with the verification results.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentscope-ai/openjudge/bib-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 agentscope-ai/OpenJudge --skill bib-verify
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 bib-verify

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentscope-ai/openjudge/bib-verify"><img src="https://agentmods.dev/badge/skills/agentscope-ai/openjudge/bib-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 681 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 $0.00088 $0.00681
Opus 5 $0.00044 $0.00341
Sonnet 5 $0.00018 $0.00136
Haiku 4.5 $0.00009 $0.00068

Measured 9d ago against content hash a2969b61a017, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

bib-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 9d 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/bib-verify/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BibTeX Verification Skill

Check every entry in a .bib file against real academic databases using the OpenJudge PaperReviewPipeline in BibTeX-only mode:

  1. Parse — extract all entries from the .bib file
  2. Lookup — query CrossRef, arXiv, and DBLP for each reference
  3. Match — compare title, authors, year, and DOI
  4. Report — flag each entry as verified, suspect, or not_found

Prerequisites

pip install py-openjudge litellm

Gather from user before running

Info Required? Notes
BibTeX file path Yes .bib file to verify
CrossRef email No Improves CrossRef API rate limits

Quick start

# Verify a standalone .bib file
python -m cookbooks.paper_review --bib_only references.bib

# With CrossRef email for better rate limits
python -m cookbooks.paper_review --bib_only references.bib --email [email protected]

# Save report to a custom path
python -m cookbooks.paper_review --bib_only references.bib \
  --email [email protected] --output bib_report.md

Relevant options

Flag Default Description
--bib_only Path to .bib file (required for standalone verification)
--email CrossRef mailto — improves rate limits, recommended
--output auto Output .md report path
--language en Report language: en or zh

Interpreting results

Each reference entry is assigned one of three statuses:

Status Meaning
verified Found in CrossRef / arXiv / DBLP with matching fields
suspect Title or authors do not match any real paper — likely hallucinated or mis-cited
not_found No match in any database — treat as fabricated

Field-level details are shown for suspect entries:

  • title_match — whether the title matches a real paper
  • author_match — whether the author list matches
  • year_match — whether the publication year is correct
  • doi_match — whether the DOI resolves to the right paper

Read the full file on GitHub · 78 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. 9d ago First seen · 78 lines · 88 tokens per session scan A a2969b61a017

Subscribe to this mod's changes

bib-verify is a skill published in the GitHub repository agentscope-ai/OpenJudge (820 stars, last pushed 2d ago), licensed Apache-2.0. It adds 88 tokens to every session and 681 once invoked, about $0.0004 per session on Opus 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.

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