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mattcoatsworth

ShipStation API MCP Server

hold_order_until

Delays order processing in ShipStation until a specified date to manage fulfillment timing and prevent premature shipment.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
orderIdYesOrder ID to hold
holdUntilDateYesDate to hold until (YYYY-MM-DD)

Implementation Reference

  • MCP tool handler that extracts orderId and holdUntilDate from params, calls shipStationClient.holdOrderUntil API method, and returns JSON response or error.
    handler: async ({ orderId, holdUntilDate }) => {
      try {
        const result = await shipStationClient.holdOrderUntil({ orderId, holdUntilDate });
        return {
          content: [{ type: "text", text: JSON.stringify(result, null, 2) }]
        };
      } catch (error) {
        return {
          content: [{ type: "text", text: error.message }],
          isError: true
        };
      }
    }
  • Input schema using Zod for validating orderId (number) and holdUntilDate (string YYYY-MM-DD).
    schema: {
      orderId: z.number().describe("Order ID to hold"),
      holdUntilDate: z.string().describe("Date to hold until (YYYY-MM-DD)")
  • Complete tool definition object in orderTools array, which is imported and registered via server.tool() in server.js.
    {
      name: "hold_order_until",
      description: "Hold an order until a specified date",
      schema: {
        orderId: z.number().describe("Order ID to hold"),
        holdUntilDate: z.string().describe("Date to hold until (YYYY-MM-DD)")
      },
      handler: async ({ orderId, holdUntilDate }) => {
        try {
          const result = await shipStationClient.holdOrderUntil({ orderId, holdUntilDate });
          return {
            content: [{ type: "text", text: JSON.stringify(result, null, 2) }]
          };
        } catch (error) {
          return {
            content: [{ type: "text", text: error.message }],
            isError: true
          };
        }
      }
    }
  • ShipStationClient helper method that makes the actual POST request to ShipStation API endpoint /orders/holduntil.
    async holdOrderUntil(data) {
      return this.request('POST', '/orders/holduntil', data);
    }
  • src/server.js:184-191 (registration)
    MCP server.tool() registration loop that spreads orderTools (including hold_order_until) and registers each tool.
    ].forEach(tool => {
      server.tool(
        tool.name,
        tool.schema,
        tool.handler,
        { description: tool.description }
      );
    });
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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