npm-mcp

Instructions

Implementation Reference

• src/index.ts:109-130 (handler)

  The implementation of the 'view' tool handler, which executes 'npm view' using the provided package name and optional field.

  server.tool(
    "view",
    "View package information from the registry",
    {
      package: z.string().describe("Package name (e.g. react, @scope/pkg)"),
      field: z.string().optional().describe("Specific field to view (e.g. versions, dist-tags)"),
    },
    async ({ package: pkg, field }) => {
      const args = ["view", pkg];
      if (field) args.push(field);
      args.push("--json");
      try {
        const { stdout } = await run(args);
        return { content: [{ type: "text", text: stdout }] };
      } catch (e: any) {
        return {
          content: [{ type: "text", text: `Error: ${e.stderr || e.message}` }],
          isError: true,
        };
      }
    },
  );