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.
curl -O https://raw.githubusercontent.com/shenyimings/DocNav-MCP/main/CLAUDE.mdgit clone --depth 1 https://github.com/shenyimings/DocNav-MCPWrote 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/shenyimings/docnav-mcp/claude-md)<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="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 | $0.00977 | $0.00977 |
| Opus 5 | $0.00489 | $0.00489 |
| Sonnet 5 | $0.00195 | $0.00195 |
| Haiku 4.5 | $0.00098 | $0.00098 |
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 8d 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 — 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,@latestsyntax
-
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
- Framework:
- For commits fixing bugs or adding features based on user reports add:
Wheregit commit --trailer "Reported-by:<name>"<name>is the name of the user.
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.
- 8d ago First seen · 131 lines · 977 tokens per session scan A 34369bffa599
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 $0.0049 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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