Borrowing it
Nothing to install: this file belongs to karthik78180/fast-mcp-local. 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/karthik78180/fast-mcp-local/main/CLAUDE.mdgit clone --depth 1 https://github.com/karthik78180/fast-mcp-localWrote 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/karthik78180/fast-mcp-local/claude-md)<a href="https://agentmods.dev/instructions/karthik78180/fast-mcp-local/claude-md"><img src="https://agentmods.dev/badge/instructions/karthik78180/fast-mcp-local/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.
<a href="https://agentmods.dev/instructions/karthik78180/fast-mcp-local/claude-md"><img src="https://agentmods.dev/badge/instructions/karthik78180/fast-mcp-local/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00810 | $0.00810 |
| Opus 5 | $0.00405 | $0.00405 |
| Sonnet 5 | $0.00162 | $0.00162 |
| Haiku 4.5 | $0.00081 | $0.00081 |
Grade A, and why
fast-mcp-local 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 10d 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 — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
A FastMCP server implementation with document management capabilities. The server automatically loads markdown documents from the docs/ folder, stores them in a SQLite database with token counts (using tiktoken), and provides tools to query and retrieve document information.
Requirements
- Python 3.10 or higher (required by FastMCP)
Commands
Setup
python3 -m venv .venv
source .venv/bin/activate
pip3 install -e ".[dev]"
Running the Server
python3 -m fast_mcp_local.server
Testing
pytest # Run all tests
pytest tests/test_server.py # Run specific test file
pytest -v # Verbose output
Interactive Testing with MCP Inspector
# Test the server interactively with the MCP Inspector web UI
npx @modelcontextprotocol/inspector python3 -m fast_mcp_local.server
This opens a web interface where you can:
- View all available tools
- Invoke tools with parameters
- See responses in real-time
Architecture
Project Structure
docs/ # Markdown documents (recursively scanned on startup)
mcp-overview.md
fastmcp-guide.md
building-tools.md
tutorials/ # Nested folders supported
getting-started.md
best-practices.md
api/
reference/
tools.md
resources.md
src/fast_mcp_local/
__init__.py # Package initialization
server.py # Main MCP server with tools
database.py # SQLite database operations
loader.py # Document loading and token counting
tests/
test_server.py # Server tool tests
test_database.py # Database operation tests
test_loader.py # Document loader tests
documents.db # SQLite database (auto-generated, gitignored)
Key Components
- server.py: Contains the FastMCP server instance and tool definitions
- Initializes database and loads documents on startup
- Provides document query tools and utility tools
- Tools are defined as Python functions decorated with
@mcp.tool()
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.
- 10d ago First seen · 114 lines · 810 tokens per session scan A 0e1a2233f1ae
fast-mcp-local CLAUDE.md is an instructions file published in the GitHub repository karthik78180/fast-mcp-local (0 stars, last pushed 11mo ago), licensed MIT. It adds 810 tokens to every session, about $0.0040 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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