/map-route

┌──────────────────────┐
│ [▲ 9 min]            │  ETA card counts down, then "Arrived"
│      ┌Iron Yard Gym┐ │  destination card after the pin lands
│  ▒▒   ▒▒   📍  ▒▒    │  white 3D blocks, parks, a river
│  ▒▒ ━━━━━━━┛   ▒▒    │  the route draws itself, the camera rides along
│  ▒▒ ┃  ▒▒      ▒▒    │  and pulls back at the end
└──────────────────────┘

First use

This skill's folder is the "Base directory" Claude Code shows when it loads it.

SKILL_DIR="<base directory of this skill>"
KIT=$(python3 -c 'import os,sys;print(os.path.realpath(os.path.join(sys.argv[1],"..","..","kit")))' "$SKILL_DIR")
[ -s "$KIT/node_modules/three/build/three.module.js" ] || bash "$KIT/setup.sh"

Needs ffmpeg and Node. It renders with WebGL in headless Chrome.

Steps

1. Trip. Get the destination name, the minutes and the distance from the user ("home to the gym, 2.8 km, 9 min"). If they only give one of minutes or distance, estimate the other (walking about 12 min per km, cycling about 4, driving in town about 2) and say so.
2. Spec. Write <name>.map.json (below).
3. Build. Run python3 "$SKILL_DIR/build.py" <spec.json>. A 3D render takes about 1.5 minutes, most of it HyperFrames waiting on WebGL (a sub_timeline_readiness_timeout warning is normal). Add --snap 3.8 to check the last frame first.
4. Check the sheet: the destination card is fully on screen and the street labels don't sit on the ETA card.
5. Hand over the mp4 path.

Spec

{
  "destination": "Iron Yard Gym", "minutes": 9, "distance": 2.8, "unit": "km",
  "places": ["North Quay", "Botanic Gardens", "Market Hall", "Elm Park", "The Canal"],
  "accent": "#2f7cf6", "seed": 7
}

• destination, minutes, distance: required. unit: "km" or "mi".
• places: 5 small grey labels at fixed spots on the map. In order: near the start, a park at the far left, a block mid-route, a park at the far right, the river. Use names that fit the user's city, or "" to hide one. They are decoration, not real geography.
• accent: the route, the moving dot and the ETA icon (hex). The pin stays red.
• seed: a different whole number gives a different arrangement of buildings and parks.
• hold (optional): extra seconds at the end. out (optional): the output path.

Changing the route

The route shape is fixed: up, right, up, right, ending at the pin. To change it, copy "$SKILL_DIR/template.html" next to the spec, edit WP in the copy ([x, z] points; every corner must sit on a street, which run along multiples of 4; x from -36 to 36, z from -88 to 24, and north is negative z), and add "template": "template.html" to the spec. The camera's final pull-back target (new THREE.Vector3(3, 0, -27)) and the label spots (LBL) are tuned for the default route, so move them with it and check with --snap.

Taste

• Short, real-sounding names. The destination card holds about 26 characters.
• Keep it calm: one route, one pin, no extra arrows or callouts.