Flight Tracker Skill

"Where's that flight right now?" has a genuinely open answer: hobbyist ADS-B receiver networks share live aircraft transponder data keylessly — adsb.lol serves it clean, OpenSky backs it up. This skill queries by callsign, hex, or area, and translates transponder math into human answers ("over Poland at 38,000 ft, ~40 minutes from Warsaw-ish airspace"). It's equally honest about the boundary: this is positions, not airline operations — gate changes, delays, and cancellations live in keyed commercial services, and pretending otherwise produces confident fiction.

What This Skill Produces

• The position — where the aircraft is now: location in words, altitude, ground speed, heading, climb/descent
• The overhead list — aircraft above/near a point, sorted by distance
• The interpretation — cruise vs. descent, direction of travel, rough progress — labeled as inference from position data
• The command — exact curl, rerunnable — and the boundary line when the question was schedule-shaped

Required Inputs

Ask for these if not provided:

• The identifier — callsign (what ATC uses: BAW123, often ≈ flight number with the airline's ICAO prefix — BA→BAW, LH→DLH, UA→UAL; do the mapping and say so), registration/tail number, or ICAO hex
• Or the place — lat/lon for "what's overhead" questions, with a radius
• What they actually want — position/curiosity vs. "is it delayed / when does it land" — the second gets the honest redirect plus what positions can infer

Framework: The Network and the Boundary

1. adsb.lol — primary: by callsign: curl -s "https://api.adsb.lol/v2/callsign/BAW123" · by registration: .../v2/reg/G-XLEB · by hex: .../v2/hex/4075a2 · overhead: .../v2/lat/51.5/lon/-0.12/dist/25 (nm). Fields per aircraft: flight (callsign), alt_baro (ft), gs (knots), track (° heading), baro_rate (ft/min climb/descent), , (type).