mcp-helper-tools

Instructions

Implementation Reference

• src/tools/encoding.ts:40-50 (handler)

  The handler function that executes the decodeBase64 tool logic, decoding the input string from base64 using Node.js Buffer and returning it as text content.

  handler: async ({ input }: { input: string }) => {
    const decoded = Buffer.from(input, 'base64').toString('utf-8');
    return {
      content: [
        {
          type: 'text',
          text: decoded
        }
      ]
    };
  }

• src/tools/encoding.ts:30-39 (schema)

  The input schema defining the expected arguments for the decodeBase64 tool: an object with a required 'input' string.

  inputSchema: {
    type: 'object',
    properties: {
      input: {
        type: 'string',
        description: 'Data to decode'
      }
    },
    required: ['input']
  },

• src/index.ts:27-33 (registration)

  Registers the decodeBase64 tool (via encodingTools) by including it in the allTools collection used by the MCP server's listTools and callTool request handlers.

  const allTools: ToolKit = {
    ...encodingTools,
    ...geoTools,
    ...generatorTools,
    ...dateTimeTools,
    ...securityTools
  };