What is DocNav-MCP CLAUDE.md?

An MCP server that helps AI assistants read and navigate long documents, beginning with Markdown files and supporting section extraction, summaries, and searches.

Use it to find content, move between headings, extract sections, and summarize parts of Markdown documents.

It makes large documents easier to explore without manually opening and scanning every section.

How shenyimings/DocNav-MCP configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to shenyimings/DocNav-MCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/shenyimings/DocNav-MCP/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/shenyimings/DocNav-MCP

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/shenyimings/docnav-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/shenyimings/docnav-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/shenyimings/docnav-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/shenyimings/docnav-mcp/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/shenyimings/docnav-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/shenyimings/docnav-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 977 This file is loaded in full into every session.

When invoked 977 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00977	$0.00977
Opus 5.5	$0.00391	$0.00391
Sonnet 5.5	$0.00195	$0.00195
Haiku 4.5	$0.00098	$0.00098

Measured 2mo ago against content hash 34369bffa599, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

DocNav-MCP 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 2mo 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.

CLAUDE.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DocNav MCP Server

Project Description

DocNav is a Model Context Protocol (MCP) server designed to help LLMs read, process, and navigate long-form documents. The server provides intelligent document analysis and navigation capabilities, starting with Markdown files and expanding to support PDF and other document formats.

Key Features

Document Navigation: Navigate through document sections, headings, and content
Content Extraction: Extract and summarize document sections
Search & Query: Find specific content within documents
Multi-format Support: Initially supports Markdown (.md) files, with planned support for PDF and other formats
MCP Integration: Seamless integration with MCP-compatible LLMs

Architecture

The server follows a modular architecture:

Core MCP Server: Main server implementation using MCP protocol
Document Processors: Pluggable processors for different file types
Navigation Engine: Handles document structure analysis and navigation
Content Extractors: Extract and format content from documents
Search Engine: Provides search and query capabilities

Development Guidelines

This document contains critical information about working with this codebase. Follow these guidelines precisely.

Core Development Rules

Package Management
- ONLY use uv, NEVER pip
- Installation: uv add package
- Running tools: uv run tool
- Upgrading: uv add --dev package --upgrade-package package
- FORBIDDEN: uv pip install, @latest syntax
Code Quality
- Type hints required for all code
- Public APIs must have docstrings
- Functions must be focused and small
- Follow existing patterns exactly
- Line length: 88 chars maximum
Testing Requirements
- Framework: uv run --frozen pytest
- Async testing: use anyio, not asyncio
- Coverage: test edge cases and errors
- New features require tests
- Bug fixes require regression tests

For commits fixing bugs or adding features based on user reports add:
```
git commit --trailer "Reported-by:<name>"
```
Where <name> is the name of the user.

Read the full file on GitHub · 131 lines

Changes

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.

2mo ago First seen · 131 lines · 977 tokens per session scan A 34369bffa599

Subscribe to this mod's changes

DocNav-MCP CLAUDE.md is an instructions file published in the GitHub repository shenyimings/DocNav-MCP (3 stars, last pushed 1y ago), licensed Apache-2.0. It adds 977 tokens to every session, about $0.0039 per session on Opus 5.5. 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.

Documents LLM PDF ai mcp mcp-server

DocNav-MCP CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
DocNav-MCP CLAUDE.mdshenyimings/DocNav-MCP	Instructions file	3	1y ago	Apache-2.0	A	977	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	144k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,685	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,086	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	281k	today	MIT	A	4,335	Codex, OpenCode

DocNav-MCP: Instructions file for Claude Code