[Bug] Google Calendar MCP: guestsCanModify field missing from event responses

Bug Description
Description: The guestsCanModify field is absent from all events returned by both list_events and get_event — including events where the authenticated user is the organizer and could have set the field themselves. Expected behavior: When guestsCanModify is set to true on a Google Calendar event, the field should appear in the MCP response (e.g., "guestsCanModify": true). When false, it can be omitted (the Google Calendar API omits it when false by default). Actual behavior: guestsCanModify is absent from 100% of events across a 30-day fetch (~hundreds of events), including organizer-owned events. Querying list_events and get_event for the same event both return no guestsCanModify field. Impact: Any tool using this field to determine whether the authenticated user can modify an event (a common pattern) will incorrectly treat all non-organizer events as read-only, even when the organizer has granted guests modify access. Steps to reproduce: Create an event and enable "Guests can modify event" Call list_events or get_event for that event Observe that guestsCanModify is absent from the response Environment: claude.ai Google Calendar MCP connector (mcp__claude_ai_Google_Calendar)

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.133
• Feedback ID: cb31c8b7-dc1b-4663-922c-9a7000995000

Errors

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