Rhumb

Instructions

Implementation Reference

• packages/mcp/src/tools/spend.ts:10-16 (handler)

  The handleSpend function, which takes SpendInput and an API client to fetch the spend breakdown.

  export async function handleSpend(
    input: SpendInput,
    client: RhumbApiClient
  ): Promise<SpendOutput> {
    const result = await client.getSpend(input.period);
    return result as unknown as SpendOutput;
  }

• packages/mcp/src/server.ts:244-257 (registration)

  The MCP tool 'spend' registration, which calls handleSpend to process the request.

  // -- spend ------------------------------------------------------------
  server.tool(
    "spend",
    "Get your spending breakdown for a billing period: total USD spent, call count, average cost per call, broken down by Capability and by provider. Use to audit costs or optimize routing.",
    {
      period: z.string().optional().describe(SpendInputSchema.properties.period.description)
    },
    async ({ period }) => {
      const result = await handleSpend({ period }, client);
      return {
        content: [{ type: "text" as const, text: JSON.stringify(result) }]
      };
    }
  );