Google Chat MCP Sever (Extendable to Teams,Slack.)

@startuml ' ' Google Chat MCP - Tool Structure Diagram (Vertical Layout) ' skinparam { BackgroundColor white ArrowColor #666 PackageBackgroundColor #f8f8f8 PackageBorderColor #aaaaaa ClassBackgroundColor WhiteSmoke ClassBorderColor #888888 NoteBackgroundColor #ffffee NoteBorderColor #999999 DefaultFontSize 9 Padding 2 Shadowing false RoundCorner 10 ClassAttributeIconSize 0 } title "Google Chat MCP - Tool Structure" ' Core MCP component package "MCP Server Core" as server { class "MCP FastAPI Server" as server_class { + register_tool() + run() } } ' Tool grid - 3 columns layout together { ' Column 1 package "Message Tools" as msg_tools { class "Send Message" as send_message { space_name: string (req) text: string (req) } class "Reply Thread" as reply_thread { space_name: string (req) thread_key: string (req) text: string (req) } class "Update Message" as update_message { message_name: string (req) new_text: string (req) } class "Delete Message" as delete_message { message_name: string (req) } class "Get Message" as get_message { message_name: string (req) include_sender_info: boolean } class "Add Emoji" as add_emoji { message_name: string (req) emoji: string (req) } class "Batch Send" as batch_send { messages: array (req) } } ' Column 2 package "Space & Search Tools" as space_search_tools { class "Get Spaces" as get_spaces { (no parameters) } class "Space Messages" as space_messages { space_name: string (req) start_date: string (req) end_date: string include_sender_info: boolean page_size: integer page_token: string filter_str: string order_by: string show_deleted: boolean } class "Manage Members" as manage_members { space_name: string (req) operation: string (req) user_emails: array (req) } class "Search Messages" as search_messages { query: string (req) search_mode: string spaces: array max_results: integer include_sender_info: boolean start_date: string end_date: string filter_str: string } class "Get Mentions" as get_mentions { days: integer space_id: string include_sender_info: boolean page_size: integer page_token: string } class "Summarize" as summarize { space_name: string (req) message_limit: integer start_date: string end_date: string page_token: string filter_str: string } } } together { ' Column 3 package "User & File Tools" as user_file_tools { class "My User Info" as my_info { (no parameters) } class "User Info by ID" as user_info { user_id: string (req) } class "Message with Sender" as message_with_sender { message_name: string (req) } class "Get Participants" as get_participants { space_name: string (req) start_date: string end_date: string max_messages: integer } class "Upload Attachment" as upload_attachment { space_name: string (req) file_path: string (req) message_text: string } class "Send File Content" as send_file { space_name: string (req) file_path: string } class "List Messages with Sender" as list_with_sender { space_name: string (req) start_date: string end_date: string limit: integer page_token: string } } } ' Connections server_class -down-> msg_tools : registers server_class -down-> space_search_tools : registers server_class -down-> user_file_tools : registers note bottom of server **MCP Server** Registers all tools and handles JSON-RPC requests from clients end note @enduml