verify-refs

verify-refs is a skill for Claude Code from yha9806/academic-writing-toolkit. It costs 29 tokens per session (514 once invoked), scanned A, original, MIT.

A checker for BibTeX reference records, the structured entries commonly used to build academic bibliographies. It examines identifiers and publication metadata, either offline or against online sources.

In plain words
What is it for?
Use it to inspect a .bib file for missing fields, duplicate keys, invalid DOIs, arXiv identifiers, URLs, or incorrect metadata.
Why use it?
It catches incomplete, malformed, duplicate, or mismatched references before a paper is submitted.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths.

Good fit Use it to inspect a .bib file for missing fields, duplicate keys, invalid DOIs, arXiv identifiers, URLs, or incorrect metadata.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yha9806/academic-writing-toolkit/verify-refs
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 yha9806/academic-writing-toolkit --skill verify-refs
Clone the repo
git clone --depth 1 https://github.com/yha9806/academic-writing-toolkit

Made for: Claude Code.

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 verify-refs

README.md
[![agentmods](https://agentmods.dev/badge/skills/yha9806/academic-writing-toolkit/verify-refs/github.svg)](https://agentmods.dev/skills/yha9806/academic-writing-toolkit/verify-refs)
Your own site
<a href="https://agentmods.dev/skills/yha9806/academic-writing-toolkit/verify-refs"><img src="https://agentmods.dev/badge/skills/yha9806/academic-writing-toolkit/verify-refs/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 verify-refs

Your own site · 80×15
<a href="https://agentmods.dev/skills/yha9806/academic-writing-toolkit/verify-refs"><img src="https://agentmods.dev/badge/skills/yha9806/academic-writing-toolkit/verify-refs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 514 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 $0.00029 $0.00514
Opus 5 $0.00015 $0.00257
Sonnet 5 $0.00006 $0.00103
Haiku 4.5 $0.00003 $0.00051

Measured yesterday against content hash 6cf375b6b1b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

verify-refs 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/verify-refs.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.

.claude/skills/verify-refs/SKILL.md · 45 lines

How it starts

The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/verify-refs — Reference Authenticity Check

Running Python helpers

Choose the interpreter before running the examples. For a globally installed copy, use the private runtime recorded by its installer. In a checkout or linked workspace, use AWT_PYTHON when set, otherwise the toolkit's .venv (follow the skill directory link back to the toolkit): Scripts/python.exe on Windows, bin/python on macOS/Linux. Without that environment, check that python (Windows) or python3 (macOS/Linux) actually runs and has the helper's dependencies. Replace the example's python3 with that executable. In PowerShell, prefix a quoted executable with &; keep commands on one line and quote file paths.

Purpose

Check reference records for missing required fields, duplicate keys, malformed DOI values, malformed arXiv identifiers, and invalid URLs. The default mode is offline and deterministic.

Trigger Words

This skill activates on: verify refs, verify references, reference check, /verify-refs.

Workflow

  1. Identify the target Markdown or .bib file. If the user does not specify one, ask.
  2. Run: python3 .claude/skills/verify-refs/scripts/verify-refs.py --bib "{path}" --json
  3. Report issues by entry key and severity.
  4. For explicit metadata verification, run: python3 .claude/skills/verify-refs/scripts/verify-refs.py --bib "{path}" --json --online
  5. Use CrossRef for DOI metadata, Semantic Scholar as a secondary metadata source, and arXiv for preprint identifiers. Online checks must be explicit because they depend on network availability.
  6. In tests or offline review, use --metadata-dir "{dir}" to read CrossRef JSON, Semantic Scholar JSON, and arXiv Atom fixtures instead of live network calls.

Constraints

  1. Do not import project-specific reference rules from other repositories.
  2. Do not auto-fix reference records without user approval.
  3. Keep output plain Markdown with no emoji.
  4. Treat CrossRef, Semantic Scholar, and arXiv as verification sources, not as citation style authorities.

Read the full file on GitHub · 45 lines

Files

What ships with it

1 file 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. yesterday Changed · +11 lines 6cf375b6b1b1
  2. 2d ago Changed 2477afe14e5f
  3. 10d ago First seen · 34 lines · 29 tokens per session scan A 94b7b611e60e

Subscribe to this mod's changes

verify-refs is a skill published in the GitHub repository yha9806/academic-writing-toolkit (37 stars, last pushed 2d ago), licensed MIT. It adds 29 tokens to every session and 514 once invoked, about $0.0001 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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