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SnowSure — Snow & Ski
ai.snowsure/snow in the official MCP registry.
Endpoint https://www.snowsure.ai/mcp. Source: github.com/mikeslone/snowsure-web.
The registry describes it as: Live ski snow, multi-model forecasts, powder rankings & a grounded Answer Engine for 500+ resorts.
We read its 48 tools on 2026-10-21. 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
ask_snowdata get_snow_report get_powder_reels get_resort_info get_resort_photos get_resort search_resorts find_best_powder find_powder_trips compare_forecasts get_weather_forecast find_resorts_by_criteria get_southern_hemisphere_report get_season_openings get_season_leaderboard get_snow_history get_monthly_snow get_trip_window get_elnino_signal get_elnino_rankings plan_ski_trip get_webcam_status get_regional_summary list_insight_categories get_insights get_ml_trends get_destination list_saved_resorts save_resort remove_saved_resort subscribe_alerts list_alerts unsubscribe_alerts book_lodging get_pass find_pass_resorts compare_passes compare_resorts get_my_snow_report get_storm_watch get_avalanche get_snow_quality get_operating_risk get_road_access get_road_cameras get_road_weather plan_ski_road_trip find_flights_to_powder
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[](https://lazaretto.dev/mcp-registry/ai-snowsure-snow)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.