Class: Gmail::MCPServer

Inherits:
Object
  • Object
show all
Defined in:
lib/utilities/gmail/mcp.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MCPServer

Returns a new instance of MCPServer.



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# File 'lib/utilities/gmail/mcp.rb', line 10

def initialize
  @prompts = [
    {
      name: "check_email",
      description: "Check your email inbox for new messages",
      arguments: [
        {
          name: "filter",
          description: "Optional filter (e.g., 'unread', 'from:[email protected]', 'subject:urgent')",
          required: false
        }
      ]
    },
    {
      name: "compose_email",
      description: "Compose and send a new email",
      arguments: [
        {
          name: "to",
          description: "Recipient email address",
          required: true
        },
        {
          name: "subject",
          description: "Email subject line",
          required: true
        },
        {
          name: "body",
          description: "Email body content",
          required: true
        }
      ]
    },
    {
      name: "email_search",
      description: "Search through your emails for specific content",
      arguments: [
        {
          name: "query",
          description: "Search query (e.g., keywords, sender, subject filters)",
          required: true
        }
      ]
    },
    {
      name: "email_management",
      description: "Manage emails (mark as read/unread, archive, label, etc.)",
      arguments: [
        {
          name: "action",
          description: "Action to perform (read, unread, archive, trash, label)",
          required: true
        },
        {
          name: "email_id",
          description: "ID of the email to manage",
          required: true
        }
      ]
    }
  ]

  @tools = {
    "test_connection" => {
      name: "test_connection",
      description: "Test the Gmail API connection",
      inputSchema: {
        type: "object",
        properties: {},
        required: []
      }
    },
    "list_emails" => {
      name: "list_emails",
      description: "List emails with filtering by date range, sender, subject, labels, read/unread status",
      inputSchema: {
        type: "object",
        properties: {
          start_date: {
            type: "string",
            description: "Start date in YYYY-MM-DD format"
          },
          end_date: {
            type: "string",
            description: "End date in YYYY-MM-DD format"
          },
          max_results: {
            type: "number",
            description: "Maximum number of emails to return (default: 20)"
          },
          sender: {
            type: "string",
            description: "Filter by sender email address"
          },
          subject: {
            type: "string",
            description: "Filter by subject content"
          },
          labels: {
            type: "string",
            description: "Filter by labels (comma-separated)"
          },
          read_status: {
            type: "string",
            description: "Filter by read status (read/unread)"
          }
        },
        required: []
      }
    },
    "search_emails" => {
      name: "search_emails",
      description: "Search emails using Gmail search syntax",
      inputSchema: {
        type: "object",
        properties: {
          query: {
            type: "string",
            description: "Search query using Gmail search syntax"
          },
          max_results: {
            type: "number",
            description: "Maximum number of emails to return (default: 10)"
          }
        },
        required: ["query"]
      }
    },
    "get_email_content" => {
      name: "get_email_content",
      description: "Get full content of a specific email including body, headers, and attachments info",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          }
        },
        required: ["email_id"]
      }
    },
    "send_email" => {
      name: "send_email",
      description: "Send a new email",
      inputSchema: {
        type: "object",
        properties: {
          to: {
            type: "string",
            description: "Recipient email address"
          },
          subject: {
            type: "string",
            description: "Email subject"
          },
          body: {
            type: "string",
            description: "Email body content"
          },
          cc: {
            type: "string",
            description: "CC email address"
          },
          bcc: {
            type: "string",
            description: "BCC email address"
          },
          reply_to: {
            type: "string",
            description: "Reply-to email address"
          }
        },
        required: ["to", "subject", "body"]
      }
    },
    "reply_to_email" => {
      name: "reply_to_email",
      description: "Reply to an existing email",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID to reply to"
          },
          body: {
            type: "string",
            description: "Reply body content"
          },
          include_quoted: {
            type: "boolean",
            description: "Include quoted original message (default: true)"
          }
        },
        required: ["email_id", "body"]
      }
    },
    "mark_as_read" => {
      name: "mark_as_read",
      description: "Mark an email as read",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          }
        },
        required: ["email_id"]
      }
    },
    "mark_as_unread" => {
      name: "mark_as_unread",
      description: "Mark an email as unread",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          }
        },
        required: ["email_id"]
      }
    },
    "add_label" => {
      name: "add_label",
      description: "Add a label to an email",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          },
          label: {
            type: "string",
            description: "Label name to add"
          }
        },
        required: ["email_id", "label"]
      }
    },
    "remove_label" => {
      name: "remove_label",
      description: "Remove a label from an email",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          },
          label: {
            type: "string",
            description: "Label name to remove"
          }
        },
        required: ["email_id", "label"]
      }
    },
    "archive_email" => {
      name: "archive_email",
      description: "Archive an email (remove from inbox)",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          }
        },
        required: ["email_id"]
      }
    },
    "trash_email" => {
      name: "trash_email",
      description: "Move an email to trash",
      inputSchema: {
        type: "object",
        properties: {
          email_id: {
            type: "string",
            description: "Gmail message ID"
          }
        },
        required: ["email_id"]
      }
    }
  }
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/utilities/gmail/mcp.rb', line 304

def run
  # Disable stdout buffering for immediate response
  $stdout.sync = true

  # Log startup to file instead of stdout to avoid protocol interference
  Mcpeasy::Config.ensure_config_dirs
  File.write(Mcpeasy::Config.log_file_path("gmail", "startup"), "#{Time.now}: Gmail MCP Server starting on stdio\n", mode: "a")
  while (line = $stdin.gets)
    handle_request(line.strip)
  end
rescue Interrupt
  # Silent shutdown
rescue => e
  # Log to a file instead of stderr to avoid protocol interference
  File.write(Mcpeasy::Config.log_file_path("gmail", "error"), "#{Time.now}: #{e.message}\n#{e.backtrace.join("\n")}\n", mode: "a")
end