paper-lookup

paper-lookup is a skill for Claude Code from KalarisLabs/research-agent-skills. It costs 198 tokens per session (6,157 once invoked), scanned C, original, no licence file.

Search 18 scholarly APIs for papers, preprints, citations, open-access full text, repository records, and journal OA status, and return results with reproducible provenance. Covers PubMed, PMC, Europe PMC, bioRxiv, medRxiv, arXiv, OpenAlex, Crossref, Semantic Scholar, CORE, Unpaywall, OpenCitations, PubTator3, Zenodo…

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Install with agentmods
npx agentmods add skills/kalarislabs/research-agent-skills/paper-lookup
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 KalarisLabs/research-agent-skills --skill paper-lookup
Clone the repo
git clone --depth 1 https://github.com/KalarisLabs/research-agent-skills

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 paper-lookup

README.md
[![agentmods](https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/paper-lookup/github.svg)](https://agentmods.dev/skills/kalarislabs/research-agent-skills/paper-lookup)
Your own site
<a href="https://agentmods.dev/skills/kalarislabs/research-agent-skills/paper-lookup"><img src="https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/paper-lookup/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 paper-lookup

Your own site · 80×15
<a href="https://agentmods.dev/skills/kalarislabs/research-agent-skills/paper-lookup"><img src="https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/paper-lookup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 198 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,157 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00198 $0.06157
Opus 5.5 $0.00079 $0.02463
Sonnet 5.5 $0.00040 $0.01231
Haiku 4.5 $0.00020 $0.00616

Measured today against content hash f216b5daf28b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

paper-lookup scanned grade C with 2 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 today.

The scan reads SKILL.md. This mod also ships 5 executable files (scripts/_common.py, scripts/arxiv_atom.py, scripts/jats_to_text.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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -s "https://export.arxiv.org/api/query?id_list=1706.03762" | python3 scripts/arxiv_atom.py -

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

compatibility: Needs network access and curl. The bundled scripts require Python 3.11+ and use only the standard library. No credentials are required; NCBI_API_KEY, S2_API_KEY, CORE_API_KEY, and OPENALEX_API_KEY raise ra
skills/paper-lookup/SKILL.md · 295 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. today First seen · 295 lines · 198 tokens per session scan C f216b5daf28b

Subscribe to this mod's changes

paper-lookup is a skill published in the GitHub repository KalarisLabs/research-agent-skills (105 stars, last pushed today), with no licence file. It adds 198 tokens to every session and 6,157 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-07.

Related

paper-lookup compared with skills from other repositories

paper-lookup next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
paper-lookupKalarisLabs/research-agent-skillsSkill105todaynoneC198Claude Code
research-managerpoemswe/co-researcherSkill1354d agoMITA21Claude Code
academic-writingpoemswe/co-researcherSkill1354d agoMITA39Claude Code
systematic-reviewpoemswe/co-researcherSkill1354d agoMITA26Claude Code
hypothesis-testingpoemswe/co-researcherSkill1354d agoMITA25Claude Code
peer-reviewpoemswe/co-researcherSkill1354d agoMITA24Claude Code
research-methodologypoemswe/co-researcherSkill1354d agoMITA48Claude Code