base64_encode

Instructions

Implementation Reference

• src/service/base64.ts:30-47 (handler)

  The handler function for the 'base64_encode' MCP tool, registered via server.tool(). Takes a 'content' string parameter, calls Base64Util.encode() to convert it to base64, and returns the result as text content.

  server.tool(
      "base64_encode",
      "encode text to base64",
      {
          content: z.string().describe("text to encode"),
      },
      async ({ content }) => {
          const result = Base64Util.encode(content);
          return {
              content: [
                  {
                      type: "text",
                      text: result,
                  },
              ],
          };
      }
  );

• src/service/base64.ts:10-12 (helper)

  The Base64Util.encode() helper method that performs the actual base64 encoding using Buffer.from(input).toString('base64').

  static encode(input: string): string {
      return Buffer.from(input).toString('base64');
  }

• src/service/base64.ts:33-35 (schema)

  The input schema for the base64_encode tool, defining a single required 'content' parameter of type string (using Zod) described as 'text to encode'.

  {
      content: z.string().describe("text to encode"),
  },

• src/service/base64.ts:28-68 (registration)

  The registerBase64Tool() function that registers both 'base64_encode' and 'base64_decode' tools on the McpServer instance.

  export function registerBase64Tool(server: McpServer) {
      // Base64 Encode
      server.tool(
          "base64_encode",
          "encode text to base64",
          {
              content: z.string().describe("text to encode"),
          },
          async ({ content }) => {
              const result = Base64Util.encode(content);
              return {
                  content: [
                      {
                          type: "text",
                          text: result,
                      },
                  ],
              };
          }
      );
  
      // Base64 Decode
      server.tool(
          "base64_decode",
          "decode base64 to text",
          {
              content: z.string().describe("base64 text to decode"),
          },
          async ({ content }) => {
              const result = Base64Util.decode(content);
              return {
                  content: [
                      {
                          type: "text",
                          text: result,
                      },
                  ],
              };
          }
      );
  }

• src/index.ts:6-6 (registration)

  Import statement for registerBase64Tool from the base64 service module.

  import { registerBase64Tool } from "./service/base64.js";