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Add pdf-research plugin with local MCP server
First knowledge-work plugin to use a local stdio MCP server instead of a remote HTTP connector. The pdf-server runs locally via npx and provides interactive PDF viewing for academic papers and local files. Tested end-to-end in Claude Code: plugin validation, MCP server connection, tool availability (list_pdfs, display_pdf), and command/skill registration all confirmed working. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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‎.claude-plugin/marketplace.json‎

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"name": "bio-research",
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"source": "./bio-research",
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"description": "Connect to preclinical research tools and databases (literature search, genomics analysis, target prioritization) to accelerate early-stage life sciences R&D"
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},
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{
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"name": "pdf-research",
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"source": "./pdf-research",
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"description": "Read, navigate, and analyze PDF documents — academic papers, reports, and local files. Uses a local PDF MCP server for interactive viewing and text extraction."
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}
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]
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}

‎pdf-research/.claude-plugin/plugin.json‎

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{
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"name": "pdf-research",
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"version": "0.1.0",
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"description": "Read, navigate, and analyze PDF documents — academic papers, reports, and local files. Uses a local PDF MCP server for interactive viewing and text extraction.",
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"author": {
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"name": "Anthropic"
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}
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}

‎pdf-research/.mcp.json‎

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{
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"mcpServers": {
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"pdf": {
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"command": "npx",
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"args": ["@modelcontextprotocol/server-pdf", "--stdio"]
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}
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}
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}

‎pdf-research/CONNECTORS.md‎

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# Connectors
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## Local MCP Server
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This plugin uses a **local MCP server** instead of a remote connector.
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The PDF server runs on your machine via `npx`.
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| Category | Server | How it runs |
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|----------|--------|-------------|
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| PDF viewer | `@modelcontextprotocol/server-pdf` | Local stdio via `npx` (auto-installed) |
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### Requirements
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- Node.js >= 18
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- Internet access for remote PDFs (arXiv, bioRxiv, etc.)
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- No API keys or authentication needed

‎pdf-research/LICENSE‎

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Apache License
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‎pdf-research/README.md‎

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# PDF Research Plugin
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Read and analyze PDF documents using a local MCP server. Designed for
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academic paper review, document analysis, and research workflows.
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## What It Does
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- **Open PDFs** from local files, arXiv, bioRxiv, and other academic sources
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- **Interactive viewer** with search, navigation, and zoom
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- **AI-powered analysis** -- summarize, extract key points, compare papers
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## Commands
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| Command | What it does |
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|---------|-------------|
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| `/pdf-research:read` | Open a PDF for reading |
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| `/pdf-research:summarize` | Summarize a document |
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## How It Works
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This plugin uses a **local MCP server** (`@modelcontextprotocol/server-pdf`)
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that runs on your machine via `npx`. No API keys or remote services needed --
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the PDF server starts automatically when the plugin loads.
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This is different from other knowledge-work plugins which use remote HTTP
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connectors. The local server pattern enables offline PDF access and avoids
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the need for a remote deployment.
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## Requirements
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- Node.js >= 18
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- Internet for remote PDFs (arXiv, etc.)
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## Supported PDF Sources
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- Local files (file paths in your working directory)
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- [arXiv](https://arxiv.org) papers
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- [bioRxiv](https://biorxiv.org) / [medRxiv](https://medrxiv.org) preprints
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- [chemRxiv](https://chemrxiv.org), [Zenodo](https://zenodo.org), [OSF](https://osf.io)
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- [HAL Science](https://hal.science), [SSRN](https://ssrn.com)

‎pdf-research/commands/read.md‎

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---
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description: Open a PDF for reading and analysis
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---
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# Read PDF
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Open a PDF document for interactive reading. Accepts local file paths,
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arXiv URLs, or other academic paper URLs.
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## Instructions
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1. If the user provides a URL or file path, call `display_pdf` with that URL
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2. If no URL given, call `list_pdfs` first to show available documents
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3. After displaying, offer to summarize, extract key points, or answer questions
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## Supported Sources
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- Local files (drag-and-drop or file path)
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- arXiv papers (arxiv.org/abs/... or arxiv.org/pdf/...)
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- bioRxiv, medRxiv, chemRxiv preprints
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- Zenodo, OSF, HAL, SSRN

‎pdf-research/commands/summarize.md‎

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---
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description: Summarize the current PDF or a new document
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---
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# Summarize PDF
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Generate a structured summary of a PDF document.
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## Instructions
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1. If a PDF is already displayed, work with it
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2. If user provides a new URL/path, call `display_pdf` first
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3. Read through the document and produce:
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- **Title and authors** (if academic paper)
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- **Key findings** (3-5 bullet points)
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- **Methodology** (brief summary)
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- **Conclusions**
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- **Relevance** — what makes this paper notable
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## Notes
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- For long documents, focus on abstract, introduction, and conclusion sections
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- Ask the user which sections they care most about if the doc is very long

‎pdf-research/skills/pdf-reading/SKILL.md‎

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---
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name: pdf-reading
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description: Read and navigate PDF documents using the local PDF server. Reference this when the user wants to open, read, search, or interact with any PDF file or academic paper.
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---
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# PDF Reading
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You have access to a local PDF server that provides interactive document viewing.
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## Available Tools
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- **list_pdfs** -- Show available PDFs. Call with no arguments.
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- **display_pdf** -- Open a PDF in the interactive viewer.
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- `url` (string): URL or local file path
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- `page` (number, optional): Starting page number
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## How to Use
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**When the user mentions a PDF, paper, or document:**
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1. If they give a URL or path, call `display_pdf` directly
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2. If they say "open the paper" without specifying, call `list_pdfs` to show options
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3. After displaying, offer to summarize, extract data, answer questions
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**arXiv shortcuts:**
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- `arxiv.org/abs/2301.12345` is auto-converted to the PDF URL
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- Users can just say "open arxiv 2301.12345"
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**Supported remote sources:**
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arXiv, bioRxiv, medRxiv, chemRxiv, Zenodo, OSF, HAL Science, SSRN
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## Best Practices
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- Always display the PDF before trying to analyze it
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- For multi-page documents, ask which section the user cares about
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- When comparing papers, display them one at a time and note key differences

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