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 AlterLab-IEU/AlterLab-Academic-Skills --skill alterlab-citation-verifiergit clone --depth 1 https://github.com/AlterLab-IEU/AlterLab-Academic-SkillsWrote 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/alterlab-ieu/alterlab-academic-skills/alterlab-citation-verifier)<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-citation-verifier"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-citation-verifier/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/alterlab-ieu/alterlab-academic-skills/alterlab-citation-verifier"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-citation-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00231 | $0.03102 |
| Opus 5 | $0.00115 | $0.01551 |
| Sonnet 5 | $0.00046 | $0.00620 |
| Haiku 4.5 | $0.00023 | $0.00310 |
Grade A, and why
alterlab-citation-verifier scanned grade A with 1 finding 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 8d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
falls back to the Python stdlib (`urllib`) — so it runs with **zero extra How it starts
The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Citation Verifier — Existence-Verify a Bibliography Against Public Scholarly APIs
The headline existence-verification skill: given a bibliography in any common
form, it proves entry-by-entry whether each reference actually exists by
querying four keyless public scholarly APIs, then maps each result to the
canonical AlterLab citation-hallucination taxonomy. It is the deterministic,
network-grounded companion to the LLM-driven integrity_verification_agent —
where that agent uses WebSearch + judgment, this skill uses authoritative API
records and a reproducible Python script, so the same input always yields the
same verdicts.
Quick Start
Verify the citations in references.bib
Check whether these DOIs resolve to the papers I cited
Audit my bibliography for fabricated / hallucinated references
Does this reference list contain any fake citations or retractions?
→ Run scripts/verify_citations.py over the bibliography, read the JSON, then
present a verdict table grouped by severity. Always state the offline/degraded
status explicitly if the network was unavailable.
WHAT This Does
For each bibliography entry the script:
- Parses the input (auto-detects BibTeX / DOI-list / free-form), extracting title, authors, year, venue, DOI, and arXiv ID.
- Resolves identifiers — looks up the cited DOI/arXiv ID directly when present.
- Searches by title as a fallback across all four sources.
- Fuzzy-matches the cited title (difflib
SequenceMatcherratio, default threshold 0.70) and computes author-surname overlap. - Flags retractions marked in Crossref (
update-to: retraction) or OpenAlex (is_retracted). - Emits a verdict per entry mapped to the taxonomy below, plus a repo-level
summary.verdict(PASS / PASS_WITH_CONDITIONS / FAIL / UNVERIFIED).
The four sources (all keyless, polite-pool)
| Source | Endpoint | Used for |
|---|---|---|
| Crossref | api.crossref.org/works |
DOI resolution, metadata, retraction flag |
| OpenAlex | api.openalex.org/works |
DOI + title search, is_retracted |
| Semantic Scholar | api.semanticscholar.org/graph/v1 |
DOI/arXiv resolution, title search |
| arXiv | export.arxiv.org/api/query |
arXiv ID resolution, preprint title search |
What ships with it
6 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.
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.
- 8d ago First seen · 234 lines · 231 tokens per session scan A 500ba01e06b0
alterlab-citation-verifier is a skill published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (66 stars, last pushed 7d ago), licensed MIT. It adds 231 tokens to every session and 3,102 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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