Use Claude to build offline trip apps from a skill

Komugi @ PowerPlatform first hand-built a travel app for a Los Angeles trip, including flights, an itinerary, maps, shared expenses and Disney planning. Rebuilding that structure for each destination would have taken several more days, so the author created a reusable Claude Code skill called trip-app.

The skill gathers requirements together, including travelers, dates, interests, pace, budget and essential stops. A program then builds the itinerary skeleton from a checked attraction pool; Claude enriches the notes with addresses, highlights, prices and alternatives. Before export, Google Places checks the attractions and warns when a proposed visit conflicts with a closed day.

The author reports generating a Hong Kong app after answering questions, building an Amsterdam version with an entry-system preparation reminder, and adding Lisbon through an OpenStreetMap discovery and verification pipeline. The final deliverable is a single HTML file containing the itinerary, maps, flight schedule, expense breakdown and preparation tasks. It opens without a server and can be shared with family.

A rule forbids invented attractions or unsupported opening-hour and price claims. Shared-expense features turn on for multiple travelers and hide for solo trips. The account describes generated apps and API warnings; it does not report an independent review of every recommendation or completed bookings.

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Source: note.com · Komugi @ PowerPlatform