it-tools-mcp/build/tools/encoding/decode_base64/index.js

Full MCP 2025-06-18 compliant server with 121+ IT tools, logging, ping, progress tracking, cancellation, and sampling utilities

import { z } from "zod";
export function registerDecodeBase64(server) {
    server.registerTool("decode_base64", {
        description: 'Decode Base64 text back to original text. Example: "SGVsbG8gV29ybGQ=" → "Hello World"',
        inputSchema: {
            text: z.string().min(1).regex(/^[A-Za-z0-9+/]*={0,2}$/, "Invalid Base64 format").describe("Base64 text to decode"),
        },
        // VS Code compliance annotations
        annotations: {
            title: "Decode Base64",
            description: "Decode Base64 text back to original text",
            readOnlyHint: false
        }
    }, async ({ text }) => {
        try {
            const decoded = Buffer.from(text, 'base64').toString('utf-8');
            return {
                content: [
                    {
                        type: "text",
                        text: `Base64 decoded: ${decoded}`,
                    },
                ],
            };
        }
        catch (error) {
            return {
                isError: true,
                content: [
                    {
                        type: "text",
                        text: `Error decoding Base64: ${error instanceof Error ? error.message : 'Unknown error'}`,
                    },
                ],
            };
        }
    });
}