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.
npx agentmods add instructions/paradyno/pdf-mcp-server/claude-mdgit clone --depth 1 https://github.com/paradyno/PDF-MCP-ServerWrote 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.
[](https://agentmods.dev/instructions/paradyno/pdf-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/paradyno/pdf-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/paradyno/pdf-mcp-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.04058 | $0.04058 |
| Opus 5 | $0.02029 | $0.02029 |
| Sonnet 5 | $0.00812 | $0.00812 |
| Haiku 4.5 | $0.00406 | $0.00406 |
Grade A, and why
PDF-MCP-Server CLAUDE.md scanned grade A with 0 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 5d ago.
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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 457 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md - PDF MCP Server Development Guide
Rules
- After making any changes to the project (code, configuration, build system, commands, etc.), always check whether
README.mdandCLAUDE.mdneed to be updated to reflect those changes. If updates are needed, propose the changes to the user.
Project Overview
This is a Model Context Protocol (MCP) server for PDF operations, implemented in Rust. It provides tools for extracting text, metadata, annotations, images, links, and form fields from PDFs, as well as manipulation operations like splitting, merging, compression, password protection, form filling, page rendering, and structure summarization.
Architecture
src/
├── main.rs # Entry point
├── lib.rs # Library exports
├── error.rs # Error types (thiserror)
├── server.rs # MCP server implementation (rmcp framework)
│ # - Tool definitions (Params/Result structs)
│ # - Tool handlers (#[tool] macro)
│ # - Processing logic (process_* methods)
├── pdf/
│ ├── mod.rs # PDF module exports
│ ├── reader.rs # PDFium-based PDF reading (text, metadata, outline)
│ ├── annotations.rs # Annotation extraction
│ ├── images.rs # Image extraction
│ └── qpdf.rs # qpdf FFI wrapper via vendored qpdf crate (split, merge, encrypt, decrypt)
└── source/
├── mod.rs # Source module exports
├── resolver.rs # PdfSource resolution (path, base64, url, cache)
└── cache.rs # In-memory PDF cache (LRU)
Key Technologies
- rmcp: Rust MCP framework for tool definitions and MCP Resources
- pdfium-render: PDFium bindings for PDF reading (dynamic linking)
- qpdf (crate): Vendored FFI bindings for PDF manipulation (no runtime dependency)
- tokio: Async runtime
- serde/schemars: JSON serialization and schema generation
MCP Resources
The server supports MCP Resources to expose PDFs from configured directories.
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.
- 5d ago First seen · 457 lines · 4,058 tokens per session scan A 1b405b72d9c2
PDF-MCP-Server CLAUDE.md is an instructions file published in the GitHub repository paradyno/PDF-MCP-Server (2 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 4,058 tokens to every session, about $0.0203 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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