Maps

Maps

Turn a place name into coordinates, coordinates into an address, and either into what is around it or how to get from one to the other. Everything runs against free open data: no API key, no account, no Python package to install.

One bundled script does all of it and answers in JSON on stdout, so you read fields rather than parse prose.

Prerequisites

Python 3.8 or later, standard library only. Nothing to install.

The script lives inside this skill folder, and skills sit under skills/ relative to the node's working directory. Resolve it once, to an ABSOLUTE path, and reuse it:

python skills/maps/scripts/maps_client.py search "Statue of Liberty"

Verify before anything else. Success is JSON containing latitude near 40.689 and longitude near -74.044. An empty answer or a traceback means the path is wrong: find the real one with file_search on maps_client.py rather than guessing another prefix.

The eight commands

python skills/maps/scripts/maps_client.py search "1600 Pennsylvania Ave, Washington DC"
python skills/maps/scripts/maps_client.py reverse 48.8584 2.2945
python skills/maps/scripts/maps_client.py nearby 48.8584 2.2945 restaurant --limit 10
python skills/maps/scripts/maps_client.py nearby --near "90210" --category pharmacy
python skills/maps/scripts/maps_client.py distance "Paris" --to "Lyon" --mode driving
python skills/maps/scripts/maps_client.py directions "Big Ben" --to "Tower Bridge" --mode walking
python skills/maps/scripts/maps_client.py timezone 35.6762 139.6503
python skills/maps/scripts/maps_client.py area "Manhattan, New York"

--mode is driving (default), walking or cycling. --radius is metres, --limit caps the result count. --category repeats to merge several searches into one query:

python skills/maps/scripts/maps_client.py nearby --near "downtown austin" \
  --category restaurant --category bar --limit 10

The 46 categories: restaurant, cafe, bar, hospital, pharmacy, hotel, guest_house, camp_site, supermarket, atm, gas_station, parking, museum, park, school, university, bank, police, fire_station, library, airport, train_station, bus_stop, church, mosque, synagogue, dentist, doctor, cinema, theatre, gym, swimming_pool, post_office, convenience_store, bakery, bookshop, laundry, car_wash, car_rental, bicycle_rental, taxi, veterinary, zoo, playground, stadium, nightclub.

What a nearby result carries

name, address, lat, lon, distance_m, a maps_url the user can tap, a directions_url from the search point, and, when OpenStreetMap has them, cuisine, hours, phone and website.

Present them as a numbered list with the name, the distance and the link. The distance is what the user actually decides on, so lead with it, not with the address.

Procedure for a location pin

When the user shares coordinates, do not geocode anything. Pass them straight through:

python skills/maps/scripts/maps_client.py nearby 36.17 -115.14 cafe --radius 1500

For "is it open now", read the hours field. When it is missing, say it is unknown and offer to check: OpenStreetMap hours are contributed by volunteers and go stale silently. Never state that a place is open on the strength of an OSM hours string alone.

Traps

• nearby needs coordinates OR --near, never both and never neither. With neither it has no centre and cannot search.
• distance and directions take the destination with --to, not as a second positional argument. distance "Paris" "Lyon" does not do what it looks like.
• A postcode alone is ambiguous worldwide. 90210 resolves in the United States; a bare 75001 may not resolve where you expect. Add the city or the country.
• Straight-line distance is not road distance. The output gives both. Quote the road one unless the user asked how far apart they are as the crow flies.
• OSRM coverage is strongest in Europe and North America. A route across a region it models poorly returns something plausible and wrong. Sanity-check the duration.
• Nominatim allows one request per second and the script paces itself. Do not parallelise calls to it: the ban is on the IP, and it outlives the session.
• The script identifies itself in its user agent, which Nominatim's terms require. Leave USER_AGENT alone; a generic or absent one gets the whole machine blocked.

Failure modes

nearby returns All Overpass mirrors failed. Both public Overpass servers timed out, which happens at peak hours. It is one JSON error object, not a crash. Wait and retry once, or answer from search and reverse, which use Nominatim and are unaffected. Do not present the outage as "there are no cafes there".

search returns nothing for a place that exists. The query is too specific or too local. Drop the building number, or add the city and country: OpenStreetMap matches on the name it holds, not on the name a user would say.

Coordinates come back for the wrong continent. Latitude and longitude were passed in the wrong order, or a sign was dropped. Longitude is second and is negative west of Greenwich.

Accented place names print as mojibake. The script forces UTF-8 on stdout, so this means something downstream re-encoded the output. Read the JSON directly rather than piping it through another tool.

A traceback instead of JSON. The Python on PATH is older than 3.8, or the path to the script is wrong. Check with python --version, then locate the script rather than retrying the same command.