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RestaurantDoctorAI
com.restaurantdoctorai/profit-check in the official MCP registry.
Endpoint https://restaurantdoctorai.com/api/mcp. Source: github.com/FelixNovaNexus/restaurantdoctorai-mcp.
The registry describes it as: Free restaurant profit check, recipe costing, calculators, website check, deadlines, guides, blog.
We read its 21 tools on 2026-10-28. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
restaurantdoctor_get_questions restaurantdoctor_run_free_check restaurantdoctor_cost_recipe restaurantdoctor_check_website restaurantdoctor_deadlines restaurantdoctor_search_knowledge restaurantdoctor_list_knowledge restaurantdoctor_read_knowledge restaurantdoctor_prime_cost restaurantdoctor_labor_cost restaurantdoctor_break_even restaurantdoctor_restaurant_budget restaurantdoctor_plate_cost restaurantdoctor_delivery_price restaurantdoctor_menu_calories restaurantdoctor_fica_tip_credit restaurantdoctor_card_fees restaurantdoctor_booking_fees restaurantdoctor_cash_out restaurantdoctor_tip_out restaurantdoctor_par_levels
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/com-restaurantdoctorai-profit-check)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.