ZV-2026-0407 · 2026-08-26 · lulu.flightpowers.com
lulu.flightpowers.com: Type of use_fallback on search_oneway_flights changed boolean → unset.
breaking
What changed
Type of use_fallback on search_oneway_flights changed boolean → unset. Type of use_fallback on search_roundtrip_flights changed boolean → unset.
What to do
If your agents call lulu.flightpowers.com, pin the new snapshot, patch the affected call sites, and let a green contract check confirm the fix. If you don't use the changed tools, nothing is required, but the rest of the ecosystem just learned about it at the same moment you did.
The redline
− boolean + unset search_oneway_flights − boolean + unset search_roundtrip_flights + use_fallback Default of use_fallback on search_oneway_flights changed false → null. + use_fallback Default of use_fallback on search_roundtrip_flights changed false → null. − Search live hotel availability and nightly prices for a destination and date range. Input:… + Search live hotel availability and nightly prices for a destination and date range. Input:… search_hotels