Packing Slip Cartons Shipment Weights

mcp-packing-list

[theluckystrike/mcp-packing-list MCP server]

In the official MCP Registry (io.github.theluckystrike/packing-list). The packing slip for a shipment, and the answer to the only two questions anybody asks while packing one: what is in which box, and what is still to pack. A packing list is raised against an order you name, the lines that order says should ship are declared on it, cartons are added with a tare weight and their outside dimensions, and goods go into cartons one call at a time. packing_shortfall then reports every line as short, complete, over-packed, or packed and not on the order at all. carton_report gives the tare, net, gross, volume, volumetric and chargeable weight per carton and for the shipment.

That is not a simplification, it is what the document is for: it travels inside the box, and the consignee's warehouse is not the party that sees what the goods cost. The invoice against the same order is a different document and lives in @theluckystrike/mcp-invoice. There is no money arithmetic in this server at all, and a test asserts there is not.

Mass is in whole grams everywhere and dimensions in whole centimetres, for the same reason money is in minor units: a kilogram carried as a float accumulates error over a hundred lines and then disagrees with the carrier's scale.

Nothing derived is stored. A record holds its cartons, its declared order lines and its packed lines; every weight and the whole shortfall are computed on the call. A stored gross weight is a second copy of what the lines already say, and it is the copy that gets believed after somebody unpacks a line.

The chargeable weight, which is the number that costs money

Couriers bill the greater of what a box weighs and what its volume is worth. The volumetric weight is length x width x height / divisor, in centimetres, and the divisor is a tariff term: 5000 cm3/kg is the courier air default, 6000 the older IATA air figure, 4000 appears on some road tariffs. It is a parameter on every tool that reports it and never a constant inside a formula, because a chargeable weight computed against the wrong divisor is a carrier invoice nobody catches until the account is reconciled.

Two refusals matter here and both are deliberate:

• A carton with only two of its three dimensions is refused outright. Two of three cannot make a volume, and a partially measured box would drop silently out of the shipment total.
• If any carton has no dimensions at all, the shipment's volumetric and chargeable totals come back as null, never as a total that quietly skipped three boxes.

Install

One-click (.mcpb): download packing-list.mcpb from the latest release and double-click it in Claude Desktop: https://github.com/theluckystrike/mcp-servers/releases/latest

npm publish for @theluckystrike/mcp-packing-list is pending, so the npx line below returns 404 today. Build from source in the meantime; see llms-install.md.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{  "mcpServers": {    "packing-list": {      "command": "npx",      "args": ["-y", "@theluckystrike/mcp-packing-list"]    }  }}

Claude Code

claude mcp add packing-list -- npx -y @theluckystrike/mcp-packing-list

Cursor

~/.cursor/mcp.json (global) or .cursor/mcp.json (project), same entry as Claude Desktop.

Tools

There is also a resource, packinglist://contract, carrying the status machine, the weight basis, what each shortfall state means, the free-tier limits and the one directory this server writes; and a prompt, pack_the_shipment, that walks the whole job in order.

Free vs Pro

The cap is on shipments in flight, not on knowing what is in a box. Marking a list shipped or cancelling it frees its slot, and so does deleting a draft, so a free user can always get back under the limit without a key.

Get Pro: https://mcp.zovo.one/buy/packing-list (one-time), or all servers for one price at https://mcp.zovo.one/buy/bundle

Privacy

All data stays local, in ${XDG_DATA_HOME:-~/.local/share}/mcp-servers/packing-list/. There is no network call anywhere in this server, no API key, and no account. The only file it reads that it does not own is the shared business profile, for the name and address at the top of the slip, and it never writes to it.

Built by theluckystrike. Support: [email protected]

Use these docs as an MCP server

Any MCP client (Claude, Cursor, Windsurf, VS Code) can read this repository's documentation directly via GitMCP - no install:

• Docs MCP URL: https://gitmcp.io/theluckystrike/mcp-packing-list