Verilex Data

Instructions

Implementation Reference

• src/tools/contracts.ts:145-199 (handler)

  Handler implementation for the "top_vendors" tool, including its registration, Zod schema definition for inputs, and the API call logic.

  server.registerTool(
    "top_vendors",
    {
      title: "Top Government Contract Vendors",
      description:
        "Get vendor rankings by total award value. Shows top contractors by agency, " +
        "total awards, and contract counts. " +
        "Cost: $0.03 per query. Source: USAspending.gov.",
      inputSchema: {
        agency: z
          .string()
          .optional()
          .describe("Filter by awarding agency"),
        period: z
          .enum(["1y", "3y", "5y", "all"])
          .optional()
          .describe("Time period for ranking (default: 1y)"),
        limit: z
          .number()
          .int()
          .min(1)
          .max(100)
          .optional()
          .describe("Maximum results (default 25)"),
      },
    },
    async ({ agency, period, limit }) => {
      const res = await apiGet<ContractQueryResponse>("/api/v1/contracts/vendors", {
        agency,
        period: period ?? "1y",
        limit: limit ?? 25,
      });
  
      if (!res.ok) {
        return {
          content: [
            {
              type: "text" as const,
              text: `API error (${res.status}): ${JSON.stringify(res.data)}`,
            },
          ],
          isError: true,
        };
      }
  
      const { count, data } = res.data;
      const warn = stalenessWarning(res);
      const summary = `${warn}Found ${count} vendor(s).`;
      const json = JSON.stringify(data, null, 2);
  
      return {
        content: [{ type: "text" as const, text: `${summary}\n\n${json}` }],
      };
    },
  );