# Citation Verifier

> Verify, normalize, and enrich a single citation or paper identifier. Use when the user pastes a DOI, URL, arXiv ID, PubMed ID, citation string, or paper title and wants it checked.

- **Type:** Skill
- **Install:** `agentstack add skill-papersflow-ai-papersflow-skills-citation-verifier`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [papersflow-ai](https://agentstack.voostack.com/s/papersflow-ai)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [papersflow-ai](https://github.com/papersflow-ai)
- **Source:** https://github.com/papersflow-ai/papersflow-skills/tree/main/skills/citation-verifier

## Install

```sh
agentstack add skill-papersflow-ai-papersflow-skills-citation-verifier
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Citation Verifier

Use this skill when the user wants to quickly verify or normalize a single paper reference rather than run a full literature search.

## Workflow

1. Accept whatever the user provides: DOI, URL, arXiv ID, PubMed ID, citation string, or a partial title.
2. Call `verify_citation` with the raw input.
3. If verification succeeds, call `fetch` with the resolved identifier to get the full paper record.
4. Present the normalized result.

## Output Style

Return a clean, structured card with:

- **Title** — full paper title
- **Authors** — first three authors, et al. if more
- **Year** — publication year
- **Venue** — journal or conference
- **DOI** — canonical DOI if available
- **Identifiers** — any additional IDs (arXiv, PubMed, Semantic Scholar)
- **Status** — whether the citation was verified successfully or had issues

If verification fails or is ambiguous, say so clearly and suggest what the user can try (e.g., a more complete title, a different identifier).

## Tool Guidance

### Use `verify_citation`

Always call this first. It handles:

- DOI strings (with or without resolver prefix)
- arXiv IDs (e.g., `2301.12345`, `arXiv:2301.12345`)
- PubMed IDs
- full or partial URLs from publisher sites, Semantic Scholar, Google Scholar
- free-text citation strings (e.g., "Smith et al. 2020, Neural networks for...")

### Use `fetch`

Call after successful verification to hydrate the full paper record with abstract, citation count, and venue details.

### Do NOT use

- `search_literature` — this skill is for a known reference, not topic discovery
- `get_citation_graph` — the user wants verification, not graph exploration

## Examples

- User pastes: `10.1038/s41586-021-03819-2`
- User pastes: `https://arxiv.org/abs/2301.12345`
- User says: "Check this cite: Vaswani et al., Attention Is All You Need, NeurIPS 2017"
- User says: "Is this DOI valid? 10.1234/fake.doi.000"
- User pastes a Semantic Scholar or Google Scholar URL

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [papersflow-ai](https://github.com/papersflow-ai)
- **Source:** [papersflow-ai/papersflow-skills](https://github.com/papersflow-ai/papersflow-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-papersflow-ai-papersflow-skills-citation-verifier
- Seller: https://agentstack.voostack.com/s/papersflow-ai
- Browse the marketplace: https://agentstack.voostack.com/browse

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