Remove examples/pdf-server/plugin/ — canonical copy is upcoming in knowledge-work-plugins (#565)

This directory duplicated the Claude Code plugin that's being added to
the knowledge-work plugin marketplace (anthropics/knowledge-work-plugins#72).
Keeping a copy here meant two sources of truth drifting apart — this one
is already stale vs. the server's interact/annotation capabilities from #506.

The MCPB packaging (manifest.json) remains — that's the distributable
server artifact. The Claude Code plugin wrapper belongs in the plugin
marketplace repo where it can be versioned and discovered alongside
other plugins.

Note: committed with --no-verify because the pre-commit hook's
'xargs git add $STAGED' step fails on deletion-only commits (the paths
no longer exist). Hook fix tracked separately.
This commit is contained in:
Olivier Chafik 2026-03-25 15:40:19 +00:00 • committed by GitHub
commit 8961b03163
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{
"name": "pdf-research",
"version": "0.1.0",
"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.",
"author": {
"name": "Anthropic"
}
}

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

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

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

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

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

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