calculate-travel-time

name	calculate_travel_time
description	How long from A to B? Returns driving/cycling/walking time + distance via the maps connector.
when_to_use	Whenever the user asks "wie lange brauche ich nach X", "how long to get to Y", "wie weit ist Z", "kann ich in 30 Minuten in Hannover sein". Also called internally by add_calendar_event when a location is set — you don't need to call it manually for that case (it happens server-side). Defaults: - `from` defaults to the user's home address (read from their profile) when omitted. Useful for "wie lange nach Hamburg" without the user having to specify their start point. - `mode` defaults to `driving`. Pass `cycling` / `walking` for those modes when the user mentioned bike or foot. If maps connector isn't reachable or returns no route, the skill returns a clear "couldn't compute" hint — surface that to the user honestly ("ich konnte die Fahrzeit gerade nicht berechnen") instead of making up a duration.
inputs	{"to":{"type":"string","required":true,"description":"Destination — address, city, or POI name. The skill geocodes it via Nominatim."},"from":{"type":"string","required":false,"description":"Start point. Same format as `to`. Omit to use the user's home address from their profile."},"mode":{"type":"string","required":false,"default":"driving","description":"'driving' (default) | 'cycling' | 'walking'."}}
outputs	{"duration_min":{"type":"integer","description":"Travel time in minutes."},"duration_human":{"type":"string","description":"Pretty form, e.g. \"1h 25 min\" or \"23 min\"."},"distance_km":{"type":"number","description":"Distance in kilometres (rounded to 1 decimal)."},"provider":{"type":"string","description":"Which backend answered — \"osrm\" or \"ors\"."}}
permissions	["admin","member","restricted"]
side_effects	none — read only. Hits the maps connector (Nominatim + OSRM/ORS).
tags	["maps","routing","travel"]

calculate_travel_time

Thin wrapper around maps.directions that defaults the from address to the user's home (so "wie lange nach Hamburg" works without the user specifying a starting point) and returns a flat shape the chat can quote naturally.