What is realtor_mcp CLAUDE.md?

A project instruction file for a TypeScript server that follows the Model Context Protocol, a standard way for AI tools to call external tools and data sources. It documents the project structure, setup commands, testing, and code-quality checks.

Use it when developing, testing, linting, formatting, or running the js_realtor_mcp project.

It gives coding agents consistent guidance about how this specific project is built, tested, and organized.

How kfrzr/realtor_mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to kfrzr/realtor_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/kfrzr/realtor_mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/kfrzr/realtor_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/kfrzr/realtor_mcp/claude-md/github.svg)](https://agentmods.dev/instructions/kfrzr/realtor_mcp/claude-md)

Your own site

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

Per session 950 This file is loaded in full into every session.

When invoked 950 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	$0.00950	$0.00950
Opus 5	$0.00475	$0.00475
Sonnet 5	$0.00190	$0.00190
Haiku 4.5	$0.00095	$0.00095

Measured 9d ago against content hash 3ba6e007b473, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

realtor_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 9d 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 · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 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

This is a TypeScript project called "js_realtor_mcp" that implements a minimal MCP (Model Context Protocol) server using the fastmcp library. The project mirrors the API of the adjacent Python realtor_mcp server but instead of creating a database or embedding text queries locally, it makes calls to a remote server to return results.

Development Commands

Environment Setup

npm install - Install project dependencies
npm run build - Build the TypeScript code
npm run dev - Run the server in development mode with auto-reload

Testing

npm test - Run all tests
npm run test:watch - Run tests in watch mode
npm run test:coverage - Run tests with coverage reports

Code Quality

npm run lint - Run ESLint for code linting
npm run lint:fix - Auto-fix linting issues
npm run typecheck - Run TypeScript type checking
npm run format - Format code with Prettier
npm run format:check - Check code formatting

Project Structure

src/
├── index.ts          # Main MCP server entry point
├── tools/            # MCP tool implementations
│   └── property-search.ts
├── types/            # TypeScript type definitions
│   └── property.ts
└── utils/            # Utility functions
    └── remote-api.ts

API Specification

Tools

property_search

Search for real estate properties via spatial, semantic, or hybrid search by calling a remote API.

Parameters:

query (string): Query listing desired property style and amenities
search_mode (string, default: "hybrid"): Search mode - 'spatial', 'semantic', or 'hybrid'
min_beds (number, default: 0): Minimum number of bedrooms
min_baths (number, default: 0): Minimum number of bathrooms
min_sqft (number, default: 0): Minimum square footage
max_price (number, default: Infinity): Maximum price
search_center_latitude (number | null): Latitude for search center (required for spatial search)
search_center_longitude (number | null): Longitude for search center (required for spatial search)
search_radius (number, default: 5): Search radius in miles from center
limit (number, default: 20): Maximum number of properties to return

Read the full file on GitHub · 110 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.

9d ago First seen · 110 lines · 950 tokens per session scan A 3ba6e007b473

Subscribe to this mod's changes

realtor_mcp CLAUDE.md is an instructions file published in the GitHub repository kfrzr/realtor_mcp (0 stars, last pushed 1y ago), licensed MIT. It adds 950 tokens to every session, about $0.0047 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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realtor_mcp: Instructions file for Claude Code