reference-verification

reference-verification is a skill for Claude Code, Codex from docxology/template. It costs 124 tokens per session (712 once invoked), scanned A, original, Apache-2.0.

A tool that checks whether references in a manuscript actually exist and match their cited details. It compares identifiers or titles with sources such as Crossref, OpenAlex, and arXiv, and can flag citations published after a chosen year.

In plain words
What is it for?
It is for verifying DOI, arXiv, or title-based citations in BibTeX files and failing a check when reference problems are found.
Why use it?
It helps catch fabricated, mismatched, unverifiable, or outdated references before publication. Its offline mode reports missing checks instead of treating them as valid.

Skill for Claude CodeCodex

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

Good fit It is for verifying DOI, arXiv, or title-based citations in BibTeX files and failing a check when reference problems are found.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/docxology/template/verification
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 docxology/template --skill verification
Clone the repo
git clone --depth 1 https://github.com/docxology/template

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 reference-verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/docxology/template/verification/github.svg)](https://agentmods.dev/skills/docxology/template/verification)
Your own site
<a href="https://agentmods.dev/skills/docxology/template/verification"><img src="https://agentmods.dev/badge/skills/docxology/template/verification/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 reference-verification

Your own site · 80×15
<a href="https://agentmods.dev/skills/docxology/template/verification"><img src="https://agentmods.dev/badge/skills/docxology/template/verification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 124 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 712 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 $0.00124 $0.00712
Opus 5 $0.00062 $0.00356
Sonnet 5 $0.00025 $0.00142
Haiku 4.5 $0.00012 $0.00071

Measured 5d ago against content hash 80eec63f997a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

reference-verification 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 5d ago.

The scan reads SKILL.md. This mod also ships 7 executable files (__init__.py, __main__.py, cache.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

infrastructure/reference/verification/SKILL.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Descriptor — infrastructure/reference/verification

Module Overview

Given the references a manuscript claims to cite, prove (or disprove) that each one exists and matches its cited metadata. This is the verification side of the literature workflow; infrastructure/search/literature is the discovery side.

Capabilities

  • Resolve: DOI → Crossref then OpenAlex (cross-index triangulation); arXiv id → arXiv API; bare title → Crossref title search with a similarity floor.
  • Classify (deterministic): ok, mismatch, fabricated, unverifiable, unchecked, anachronism.
  • Offline-first: with allow_network=False (default), consult only the SQLite cache and report unchecked on a miss — a skipped check never launders into a clean pass.
  • Persistent cache: SQLite, 90-day TTL, stores negative results so "fabricated" is fast and stable.
  • Temporal integrity: flag citations dated after the manuscript's as-of year.

CLI

uv run python -m infrastructure.reference.verification verify references.bib
uv run python -m infrastructure.reference.verification verify references.bib --live --as-of-year 2026 --fail-on-issues
uv run python -m infrastructure.reference.verification verify references.bib --json
uv run python -m infrastructure.reference.verification cache-clear

Python API

from infrastructure.reference.verification import ReferenceResolver, ResolutionCache, verify_bibfile

resolver = ReferenceResolver(cache=ResolutionCache("cache.db"), allow_network=True)
report = verify_bibfile("references.bib", resolver, as_of_year=2026)
print(report.summary_line())
assert not report.has_blocking

See Also

Read the full file on GitHub · 62 lines

Files

What ships with it

9 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.

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. 5d ago First seen · 62 lines · 124 tokens per session scan A 80eec63f997a

Subscribe to this mod's changes

reference-verification is a skill published in the GitHub repository docxology/template (19 stars, last pushed today), licensed Apache-2.0. It adds 124 tokens to every session and 712 once invoked, about $0.0006 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 2026-09-03.

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