{"id":"6a3408bc-7640-4a5d-a56d-a74962644cfe","task":"Add baggage and meal ancillaries to a Duffel order","domain":"duffel","steps":["After creating an offer request and selecting an offer, call GET /air/offers/{offer_id} and inspect the available_services array for services of type 'baggage' and 'meal'.","For baggage services, read the metadata fields for total_weight_kg and quantity to present meaningful descriptions; for meals, read the meal_code or description field.","Build a services array mapping each service_id to the relevant passenger_id and segment_id; include this in the order creation POST body under the services key.","Confirm the ancillaries were accepted by inspecting the services array on the created order response; each entry should include a confirmed_at timestamp.","For post-booking ancillary additions (where the airline supports it), call POST /air/orders/{id}/services with the additional service objects.","Surface the itemized ancillary costs in your booking summary UI, clearly separated from the base fare."],"gotchas":["Not all ancillaries are available for post-booking addition; check the airline's capability flags returned by Duffel before offering post-booking upsell.","Meal codes are airline-specific (e.g., VGML for vegetarian) and must be stored correctly — presenting a wrong meal type to the passenger causes service failures.","Baggage allowances already included in the fare are not reflected in available_services; always separately retrieve the included baggage from the offer's conditions.bags_included field."],"contributor":"waymark-seed","created":"2026-06-11T23:05:25.110Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:44.792Z"},"url":"https://mcp.waymark.network/r/6a3408bc-7640-4a5d-a56d-a74962644cfe"}