cite-check

cite-check is a command for Claude Code from AlterLab-IEU/AlterLab-Academic-Skills. It costs 56 tokens per session (622 once invoked), scanned A, original, MIT.

A command that checks whether references exist in scholarly databases and whether cited sources support the claims made about them. It can inspect BibTeX files, manuscripts, or pasted reference lists and flags retracted or unmatched entries.

In plain words
What is it for?
Use it to audit bibliographies, resolve DOI or arXiv identifiers, check citation-to-claim accuracy, and produce a verdict for each reference.
Why use it?
It helps catch fabricated, incorrect, or misleading citations before they reach a paper or report. This is useful when a reference looks plausible but has not been independently verified.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the alterlab-core plugin — 10 skills, 4 commands, 34 agents shipped together

Good fit Use it to audit bibliographies, resolve DOI or arXiv identifiers, check citation-to-claim accuracy, and produce a verdict for each reference.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/alterlab-ieu/alterlab-academic-skills/cite-check
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.

Clone the repo
git clone --depth 1 https://github.com/AlterLab-IEU/AlterLab-Academic-Skills

Made for: Claude Code.

Or install alterlab-core, the plugin that ships this one along with the rest of its 10 skills, 4 commands, 34 agents.

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 cite-check

README.md
[![agentmods](https://agentmods.dev/badge/commands/alterlab-ieu/alterlab-academic-skills/cite-check/github.svg)](https://agentmods.dev/commands/alterlab-ieu/alterlab-academic-skills/cite-check)
Your own site
<a href="https://agentmods.dev/commands/alterlab-ieu/alterlab-academic-skills/cite-check"><img src="https://agentmods.dev/badge/commands/alterlab-ieu/alterlab-academic-skills/cite-check/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 cite-check

Your own site · 80×15
<a href="https://agentmods.dev/commands/alterlab-ieu/alterlab-academic-skills/cite-check"><img src="https://agentmods.dev/badge/commands/alterlab-ieu/alterlab-academic-skills/cite-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 622 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 $0.00056 $0.00622
Opus 5.5 $0.00022 $0.00249
Sonnet 5.5 $0.00011 $0.00124
Haiku 4.5 $0.00006 $0.00062

Measured 1mo ago against content hash 35cb8885e536, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cite-check 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.

skills/core/alterlab-citation-verifier/commands/cite-check.md · 42 lines

What it actually says

Cite-check the citations in: $ARGUMENTS

Use the alterlab-citation-verifier skill. Decide each verdict from the script output and retrieved records, not from whether a reference looks plausible or familiar: a model's memory shares the training data that produces fabricated references, so it cannot confirm them.

Steps:

  1. Collect — Parse the references from $ARGUMENTS (a .bib file, a manuscript path, or a pasted list). If nothing was given, ask for the references or file.
  2. Existence check — Run scripts/verify_citations.py over the references. It resolves each one against Crossref, OpenAlex, Semantic Scholar, and arXiv (no API key required; optional OPENALEX_API_KEY / S2_API_KEY raise rate limits), checks DOI registration at doi.org, matches title and authors with the difflib SequenceMatcher ratio (≥ 0.70), and maps each entry to the TF / PAC / IH / PH taxonomy.
  3. Retraction screen — Surface every RETRACTED flag (Crossref updated-by / update-to notices, including Retraction Watch data, or OpenAlex is_retracted) and any expression of concern.
  4. Claim faithfulness — Where a sentence is tied to a citation, run scripts/claim_faithfulness.py on the (claim, DOI) pair; report contradict as SH and escalate unsupported claims (the abstract does not establish them) to the --tier llm judge or full-text reading.
  5. Report — A per-citation table: verdict code (verified / TF / PAC / IH / PH / SH / unverified), flags, the source that confirmed it, and the matched DOI/ID. Summarize how many of N citations could not be verified and why (source_status).

If the network or a source is unavailable, say so explicitly: the script returns unverified rather than a pass. For those entries, run the WebSearch fallback from the SKILL.md "Graceful Degradation and the Fallback" section (three distinct queries); anything still not found is reported as TF (NOT_FOUND), never as "difficult to verify".

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 Changed · +8 lines 35cb8885e536
  2. 1mo ago First seen · 34 lines · 56 tokens per session scan A 813daf4c6bc7

Subscribe to this mod's changes

cite-check is a command published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (78 stars, last pushed yesterday), licensed MIT. It adds 56 tokens to every session and 622 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 2026-09-03.