=== 1. Production server: tools an AI client can use ===
  [read ] calendar_list_events   List events on the user's Google Calendar between two moments. Use it to answer
  [read ] calendar_free_busy     Show when the user is busy between two moments, to find a free slot.
  [WRITE] calendar_create_event  Create an event on the user's Google Calendar. Guests are only emailed when notify is
  [WRITE] calendar_update_event  Change an event. Only the fields you pass are changed. Find the event ID with
  [WRITE] calendar_delete_event  Delete an event from the user's Google Calendar. Confirm with the user first, and find the
  [read ] drive_search           Search Google Drive files by name and type, newest first.
  [WRITE] drive_create_folder    Create a folder in Google Drive.
  [read ] list_connected_apps    List which apps this workspace has connected, so you know which tools will work.
  [read ] credit_balance         Get the workspace's remaining AI credits.
  [read ] search_contacts        Search WhatsApp contacts of this workspace by name or phone number.
  [read ] list_templates         List WhatsApp message templates of this workspace with their approval status.
  [read ] gmail_search           Search the connected Gmail inbox.
  [read ] gmail_read             Read one Gmail message by its ID.
  [WRITE] gmail_draft            Save an email as a Gmail draft. Nothing is sent.
  [WRITE] gmail_send             Send an email immediately. Always confirm the recipient and text with the user first.
  [read ] monday_list_boards     List Monday.com boards.
  [WRITE] monday_create_item     Create an item on a Monday.com board.
  [WRITE] monday_change_status   Set the status column of a Monday.com item.
  [read ] sheets_list            Find Google Sheets by name. Use this first when the user names a sheet instead of
  [read ] sheets_tabs            List the tabs (worksheets) of one Google Sheet, with their names and sizes.
  [WRITE] sheets_create          Create a new Google Sheet, optionally with a header row and data rows. Use this when the
  [read ] sheets_read            Read cells from a Google Sheet.
  [read ] sheets_search          Find rows in a Google Sheet that contain a keyword.
  [WRITE] sheets_append_row      Add one row at the end of a Google Sheet.
  [read ] whatsapp_recent_conversations Show the latest WhatsApp conversations: who wrote, the last message and its status.
  [read ] whatsapp_get_messages  Read the latest messages exchanged with one WhatsApp contact, oldest first.
  [WRITE] whatsapp_send_text     Send a WhatsApp text message to one contact. Only works when the contact wrote in the
  [WRITE] whatsapp_send_template Send an approved WhatsApp template message to one contact. This is the only way to
  [WRITE] whatsapp_add_contact   Save a new WhatsApp contact, or return the existing one with the same number.
  [read ] whatsapp_list_broadcasts List recent WhatsApp broadcast campaigns with status and audience size. Read only:

=== 2. Demo tools through the real pipeline (workspace 7, role member) ===
  demo_echo -> {
    "text": "hello",
    "workspace": 7,
    "role": "member"
}
  demo_not_connected -> [ERROR] Google account is not connected for this workspace.
  demo_crash -> [ERROR] The tool failed unexpectedly. Please try again.

  -- same server, role changed to viewer --
  demo_echo -> {
    "text": "hello",
    "workspace": 7,
    "role": "member"
}
  demo_write -> [ERROR] Your role 'viewer' can read but cannot change data.

  -- workspace 8 asks the same question (cache must not leak) --
  demo_echo -> {
    "text": "hello",
    "workspace": 8,
    "role": "member"
}