com.moltlinestudio/shipping

Tools

• dim_weight

  Work out whether a parcel bills on its size or its weight. FREE. Carriers charge the greater of actual weight and dimensional weight, so a light bulky box costs more than the scale suggests. Typical input {"length": 18, "width": 12, "height": 10, "actual_weight": 6} returns {"cubic": 2160.0, "dim_weight": 15.54, "actual_weight": 6.0, "billable_weight": 15.54, "billed_on": "dimensional", "overage": 9.54, "divisor_used": 139.0, "note": "..."}. Use when deciding whether a smaller box is worth the packing effort, or why an invoice exceeded the scale weight. Not for choosing a box from a list of candidates — that is parcel_fit. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "custom_divisor must be greater than 0 when divisor is 'custom'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow
• free_shipping_threshold

  Find the order value at which free shipping stops costing you money. PREMIUM (license). Break-even is where the gross margin on the order covers the shipping you absorb. Typical input {"gross_margin_pct": 45, "ship_cost": 7.5, "current_aov": 38, "target_uplift_pct": 15} returns {"break_even": 16.67, "suggested_threshold": 43.7, "above_current_aov_by": 5.7, "rationale": "..."}. Use when setting or defending a free-shipping bar. Not for what shipping should cost when it is not free — that is rate_card. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow
• freight_class

  Derive a US LTL freight class from density. FREE. Density in pounds per cubic foot maps to a class on the published NMFC density scale. Typical input {"length": 48, "width": 40, "height": 36, "weight": 400} returns {"cubic_feet": 40.0, "density_pcf": 10.0, "density_class": "100", "caveat": "..."}. Use for a first estimate before a carrier quote. Not as a final classification: NMFC also weighs stowability, handling and liability, so a carrier can and does reclassify. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "dimensions produce zero volume"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow
• landed_cost

  Total what a unit really costs once freight, duty and fees are in. FREE. Duty is applied to goods value, tax to goods plus duty plus freight — the common import treatment — and the order is spelled out in the response so you can check it against your own broker's method. Typical input {"unit_cost": 8.5, "quantity": 200, "freight_total": 640, "duty_pct": 6.5, "tax_pct": 0} returns {"goods": 1700.0, "duty": 110.5, "freight": 640.0, "tax": 0.0, "total_landed": 2450.5, "landed_unit_cost": 12.25, ...}. Use before setting a price on imported stock. Not for the margin that price leaves you — that is the dropship server's margin_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow
• parcel_fit

  Pick the smallest box an item actually fits in, allowing for padding. FREE. Tries every rotation of the item against every box, so an item that only fits diagonally-oriented is still found. Typical input {"item_length": 10, "item_width": 6, "item_height": 4, "box_options": [[12, 9, 4], [14, 10, 6]]} returns {"fits": [{"box": [14, 10, 6], "cubic": 840.0, "slack": [2, 2, 0]}], "best": [14, 10, 6], "rejected": [...]}. Use when choosing packaging from stock. Not for what the carrier will bill once a box is chosen — that is dim_weight. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "box_options must contain at least one [l, w, h] box"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow
• rate_card

  Turn a cost model into a customer-facing weight-banded price table. PREMIUM (license). Prices each band at its upper bound so you never under-charge inside a band, then rounds up to a tidy increment. Typical input {"base_cost": 4.2, "cost_per_lb": 0.65, "bands_lb": [1, 2, 5, 10], "margin_pct": 25} returns {"bands": [{"up_to_lb": 1, "cost": 4.85, "price": 6.5}, ...], "over_top_band": "quote individually"}. Use when publishing shipping prices customers pay. Not for the cut-off at which shipping becomes free — that is free_shipping_threshold. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "bands_lb must contain at least one upper bound"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

  shallow

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