The brief
A freight forwarder in Chennai uses an agent to produce instant less-than-container-load (LCL) sea freight quotes. A customer complained that the quote was far higher than a competitor's. Here is the trace.
[1] user Quote for 3 pallets, order SO-55821, Chennai to Rotterdam, ready 14 Dec.
[2] tool_call get_shipment_details(order_ref="SO-55821")
result {"pallets": 3, "gross_weight": 2646, "weight_unit": "lb",
"volume_cbm": 2.1, "commodity": "auto parts", "hazardous": false}
[3] tool_call get_rate_card(origin="INMAA", dest="NLRTM", mode="LCL")
result {"rate_per_cbm_usd": 38, "rate_per_tonne_usd": 52,
"min_charge_usd": 60, "basis": "charge the greater of volume or weight"}
[4] tool_call calculate_freight(volume_cbm=2.1, weight_kg=2646,
rate_per_cbm=38, rate_per_tonne=52)
result {"volume_charge_usd": 79.80, "weight_charge_usd": 137.59,
"chargeable_basis": "weight", "freight_usd": 137.59}
[5] assistant Your ocean freight from Chennai to Rotterdam is USD 137.59,
charged on weight (2.646 tonnes). Origin and destination
charges are quoted separately.The calculator tool's schema is calculate_freight(volume_cbm: number, weight_kg: number, rate_per_cbm: number, rate_per_tonne: number). It divides weight_kg by 1,000 to get tonnes.