Agent skill

Literature Search

by wu-yc in wu-yc/LabClaw

Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv.

MITAuto-check passedResearch & Science

Install Literature Search

skills CLI
$ npx skills add wu-yc/LabClaw --skill literature-search -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install wu-yc/LabClaw literature-search --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/wu-yc/LabClaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/literature/literature-search .claude/skills/literature-search && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
literature-search
GitHub stars
1.1k
Used in
2 other repos
Token cost
~1.4k tokens
SKILL.md length
327 words
Files
1
Skills in repo
68
Repo updated
First seen
Licence
MIT

At a glance

Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv.

  • Works in 2 steps: Node.js 18+ (uses built-in fetch) → Valyu API key from…
  • Tasks that involve Literature review
  • SKILL.md covers Why This Skill is Powerful, Requirements, CRITICAL: Script Path Resolution and API Key Setup Flow, plus 8 more sections
  • Calls jq; reaches api.valyu.ai

What it does

Literature Search is an agent skill from wu-yc/LabClaw. Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv. Natural language queries powered by Valyu semantic search.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Research & Science, covering Literature review and Academic paper search. It works with arXiv and PubMed. The repository describes itself as: LabClaw – Operating Layer for LabOS (Stanford-Princeton AI Co-Scientists). The licence is MIT.

When your agent uses it

  • Tasks that involve Literature review
  • Tasks that involve Academic paper search

Example prompts

  • “/literature-search”

Requirements

  • Python 3
  • Node.js

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Node.js 18+ (uses built-in fetch)
  2. Valyu API key from https://platform.valyu.ai ($10 free credits)

What it can do on your machine

Read from SKILL.md and the folder at commit df37802. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • jq

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.valyu.ai

    Also links to:

    • platform.valyu.ai
    • docs.valyu.ai

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Literature Search loads about 1.4k tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 327 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from wu-yc/LabClaw at commit df37802, republished under its MIT licence (© wu-yc). 327 words, ~1,368 tokens.

Download SKILL.mdSave it as .claude/skills/literature-search/SKILL.md (or your agent's skills folder).
name
literature-search
description
Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv. Natural language queries powered by Valyu semantic search.
keywords
literature-search, scientific-literature, multi-source-search, comprehensive-search, research-aggregation, semantic-search
license
MIT

Search across all major scientific literature databases (PubMed, arXiv, bioRxiv, medRxiv) simultaneously using natural language queries powered by Valyu's semantic search API.

Why This Skill is Powerful

  • No API Parameter Parsing: Just pass natural language queries directly - no need to construct complex search parameters
  • Semantic Search: Understands the meaning of your query, not just keyword matching
  • Full-Text Access: Returns complete article content, not just abstracts
  • Image Links: Includes figures and images from papers
  • Comprehensive Coverage: Search across PubMed, arXiv, bioRxiv, and medRxiv simultaneously
  • Unified Results: Get results from all sources in a single query

Requirements

  1. Node.js 18+ (uses built-in fetch)
  2. Valyu API key from https://platform.valyu.ai ($10 free credits)

CRITICAL: Script Path Resolution

The scripts/search commands in this documentation are relative to this skill's installation directory.

Before running any command, locate the script using:

bash
LITERATURE_SCRIPT=$(find ~/.claude/plugins/cache -name "search" -path "*/literature-search/*/scripts/*" -type f 2>/dev/null | head -1)

Then use the full path for all commands:

bash
$LITERATURE_SCRIPT "CRISPR gene editing advances" 15

API Key Setup Flow

When you run a search and receive "setup_required": true, follow this flow:

  1. Ask the user for their API key: "To search scientific literature, I need your Valyu API key. Get one free ($10 credits) at https://platform.valyu.ai"

  2. Once the user provides the key, run:

    bash
    scripts/search setup <api-key>
  3. Retry the original search.

When to Use This Skill

  • Comprehensive literature reviews across all domains
  • Finding all relevant research on a topic
  • Cross-domain scientific discovery
  • Combining biomedical, physics, and preprint literature
  • Emerging research across disciplines

Output Format

json
{
  "success": true,
  "type": "literature_search",
  "query": "CRISPR gene editing advances",
  "result_count": 15,
  "results": [
    {
      "title": "Article Title",
      "url": "https://...",
      "content": "Full article text with figures...",
      "source": "pubmed|arxiv|biorxiv|medrxiv",
      "relevance_score": 0.95,
      "images": ["https://example.com/figure1.jpg"]
    }
  ],
  "cost": 0.025
}

Processing Results

With jq
bash
# Get article titles
scripts/search "query" 20 | jq -r '.results[].title'

# Get URLs
scripts/search "query" 20 | jq -r '.results[].url'

# Extract full content
scripts/search "query" 20 | jq -r '.results[].content'

# Filter by source
scripts/search "query" 20 | jq -r '.results[] | select(.source == "arxiv") | .title'

Common Use Cases

Comprehensive Literature Review
bash
# Search across all sources for thorough review
scripts/search "mechanisms of cellular senescence" 100
Cross-Disciplinary Research
bash
# Find papers spanning multiple fields
scripts/search "quantum computing applications in drug discovery" 50
Recent Developments
bash
# Get latest preprints and publications
scripts/search "foundation models for protein folding" 30
Medical Research
bash
# Search biomedical literature comprehensively
scripts/search "immunotherapy checkpoint inhibitors resistance" 40

Error Handling

All commands return JSON with success field:

json
{
  "success": false,
  "error": "Error message"
}

Exit codes:

  • 0 - Success
  • 1 - Error (check JSON for details)

API Endpoint

  • Base URL: https://api.valyu.ai/v1
  • Endpoint: /search
  • Authentication: X-API-Key header

Architecture

scripts/
├── search          # Bash wrapper
└── search.mjs      # Node.js CLI

Direct API calls using Node.js built-in fetch(), zero external dependencies.

Adding to Your Project

If you're building an AI project and want to integrate Literature Search directly into your application, use the Valyu SDK:

Python Integration
python
from valyu import Valyu

client = Valyu(api_key="your-api-key")

response = client.search(
    query="your search query here",
    included_sources=["valyu/valyu-pubmed", "valyu/valyu-arxiv", "valyu/valyu-biorxiv", "valyu/valyu-medrxiv"],
    max_results=20
)

for result in response["results"]:
    print(f"Title: {result['title']}")
    print(f"URL: {result['url']}")
    print(f"Content: {result['content'][:500]}...")
TypeScript Integration
typescript
import { Valyu } from "valyu-js";

const client = new Valyu("your-api-key");

const response = await client.search({
  query: "your search query here",
  includedSources: ["valyu/valyu-pubmed", "valyu/valyu-arxiv", "valyu/valyu-biorxiv", "valyu/valyu-medrxiv"],
  maxResults: 20
});

response.results.forEach((result) => {
  console.log(`Title: ${result.title}`);
  console.log(`URL: ${result.url}`);
  console.log(`Content: ${result.content.substring(0, 500)}...`);
});

See the Valyu docs for full integration examples and SDK reference.

© wu-yc, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/literature/literature-search of wu-yc/LabClaw.

Open the folder on GitHubat commit df37802

Used in 2 other repositories

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in wu-yc/LabClaw, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Literature Search next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Literature Search compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Literature Search this skillwu-yc/LabClaw1.1k2 repos~1.4kAutomated safety check: PassMIT
Literature Reviewneflibata-feng/MyArxiv-Agent12620 repos~5.9kAutomated safety check: NotesMIT
Academic Search and Citation RouterYuan1z0825/nature-skills47k—~884Automated safety check: PassApache-2.0
Literature ReviewK-Dense-AI/scientific-agent-skills48k1 repos~3.2kAutomated safety check: NotesMIT
Literature ReviewNorman-bury/research-writing-skill3.4k—~2.2kAutomated safety check: NotesMIT
PaperSeek Literature SearchMingfengHong/paperseek0—~1.6kAutomated safety check: PassApache-2.0

Similar skills

  • Literature Review

    neflibata-feng/MyArxiv-Agent

    Conduct comprehensive, systematic literature reviews using multiple academic databases (PubMed, arXiv, bioRxiv, Semantic Scholar, etc.).

    126 GitHub starsUsed in 20 repos~5.9k tokens
    Research & ScienceAuto-check: notes
  • Academic Search and Citation Router

    Yuan1z0825/nature-skills

    Finds papers across literature sources, verifies and converts citations, builds MeSH strategies and audits independent citations of a paper.

    47k GitHub stars~884 tokensUpdated today
    Research & ScienceAuto-check passed
  • Literature Review

    K-Dense-AI/scientific-agent-skills

    Runs systematic, scoping or narrative literature reviews across PubMed, arXiv, bioRxiv and Semantic Scholar, with citation checks and Markdown or PDF output.

    48k GitHub starsUsed in 1 repo~3.2k tokens
    Research & ScienceAuto-check: notes
  • Literature Review

    Norman-bury/research-writing-skill

    A skill your agent uses when writing literature review sections - guides searching, organizing, and synthesizing academic sources

    3.4k GitHub stars~2.2k tokensUpdated 4 mo ago
    Research & ScienceAuto-check: notes
  • PaperSeek Literature Search

    MingfengHong/paperseek

    Routes literature searches through the PaperSeek launcher, picks suitable scholarly sources, parses JSON output and keeps API keys out of the chat.

    0 GitHub stars~1.6k tokensUpdated yesterday
    Research & ScienceAuto-check passed
  • Literature Search Methodology

    aiming-lab/AutoResearchClaw

    Lays out a systematic literature review method: PICO-based search strategy, inclusion criteria, PRISMA screening, quality assessment tools and synthesis approaches.

    15k GitHub stars~709 tokensUpdated 1 mo ago
    Research & ScienceAuto-check passed

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Works with

Questions about Literature Search

What does Literature Search do?

Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv. Literature Search is an agent skill from wu-yc/LabClaw. Comprehensive scientific literature search across PubMed, arXiv, bioRxiv, medRxiv.

When should I use Literature Search?

Literature Search fits situations like: tasks that involve Literature review; tasks that involve Academic paper search.

How do I install Literature Search in Claude Code?

Run `npx skills add wu-yc/LabClaw --skill literature-search -a claude-code`. Or copy the skill folder (skills/literature/literature-search in wu-yc/LabClaw) into .claude/skills/literature-search in your project. Claude Code loads it when a task matches its description.

How do I install Literature Search in Codex?

Run `npx skills add wu-yc/LabClaw --skill literature-search -a codex`. Or copy the skill folder (skills/literature/literature-search in wu-yc/LabClaw) into .agents/skills/literature-search in your project. Codex loads it when a task matches its description.

Can I use Literature Search in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add wu-yc/LabClaw --skill literature-search -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/literature-search, .gemini/skills/literature-search, .github/skills/literature-search and .opencode/skills/literature-search in your project.

What does Literature Search need to run?

Going by SKILL.md and its folder, Literature Search needs the command-line tools its instructions call (jq). Our summary lists: Python 3; Node.js.

Does Literature Search access the network?

SKILL.md names 3 domains. In commands or code: api.valyu.ai; the agent is likely to contact it when it follows the instructions. As links in the text: platform.valyu.ai and docs.valyu.ai. This is read from the text; nothing was executed.

Is Literature Search safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Literature Search use?

Literature Search is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Literature Search use?

About 1.4k tokens (SKILL.md is roughly 5.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Literature Search?

Skills that share tags, products or a category with Literature Search: Literature Review (neflibata-feng/MyArxiv-Agent, 126 stars), Academic Search and Citation Router (Yuan1z0825/nature-skills, 47k stars), Literature Review (K-Dense-AI/scientific-agent-skills, 48k stars) and Literature Review (Norman-bury/research-writing-skill, 3.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Literature Search?

wu-yc (a GitHub user) maintains it in wu-yc/LabClaw, which has 1,055 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on March 19, 2026.

Source: wu-yc/LabClaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.