About papers
papers is a research skill for finding academic papers, citations, and formal research, then extracting structured findings. It searches several scholarly and open-access sources and specifies a PDF-to-Markdown workflow.
Key features
- 01Search arXiv, Semantic Scholar, and open-access sources
- 02Follow prioritized source order
- 03Convert PDFs to Markdown
- 04Extract findings, methods, and citation details
- 05Handle paywalled-paper fallbacks
Use cases
- 01Finding papers for a literature review
- 02Tracing citation chains
- 03Extracting methods and results from PDFs
MCP support
The skill directs users to try the `leyline:document-conversion` MCP `convert_to_markdown` tool first when processing a PDF, with the Read tool as fallback.
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ athola/ claude-night-market --skill papersAfter installing, type/papersin Claude Code to confirm it loaded.
Details
From the project READMEAcademic Papers Search
When To Use
- Finding academic papers, citations, or formal research
- Building literature reviews or citation chains
When NOT To Use
- Community opinions (use
Skill(tome:discourse)) - Code implementations (use
Skill(tome:code-search))
Search arXiv, Semantic Scholar, and open-access sources.
Sources (Priority Order)
- arXiv API (free, unlimited metadata)
- Semantic Scholar API (100 req/5min, citation graphs)
- Unpaywall (legal free version discovery)
- CORE.ac.uk (open-access aggregator)
- PubMed Central (biomedical)
- Author preprint pages (WebSearch fallback)
PDF Processing
After acquiring a paper URL or local file path, convert the PDF to markdown for better extraction quality.
Conversion (prefer markitdown)
Apply the leyline:document-conversion protocol:
-
Try markitdown first: call the MCP
convert_to_markdowntool with the PDF URL orfile://path. This produces structured markdown preserving tables, equations, figures, and section hierarchy. -
Fall back to Read tool if markitdown is unavailable:
- Read with
pages: "1-20"for the first chunk - Continue with
pages: "21-40"for longer papers - Continue in 20-page increments as needed
- Note: tables and figures will not extract as cleanly
- Read with
Extraction Targets
From the converted markdown, extract:
- Abstract and key findings
- Methodology and experimental setup
- Results tables and figures
- Citation information (authors, year, venue)
- Key equations or formal definitions
Fallback Guidance
When a paper is paywalled and no open version exists:
- Public library JSTOR/ProQuest access via library card
- DeepDyve article rental
- Inter-library loan request
- Direct author email template
Exit Criteria
- At least one academic source queried in priority order (arXiv first, then Semantic Scholar, then Unpaywall/CORE/PubMed)
- PDF content converted via
leyline:document-conversionprotocol: markitdown MCP attempted first, Read-tool fallback used if markitdown is unavailable - Each paper result includes citation info (authors, year, venue) and an abstract or key findings summary
- Paywalled papers with no open version trigger the fallback guidance (library, DeepDyve, ILL, author contact) rather than returning an empty result
- If all sources return zero results, this is stated explicitly rather than generating fabricated paper entries