[FEATURE] Generic CalDAV calendar connector for Cowork

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

The only calendar connector currently available in Cowork is Google Calendar. Users who rely on provider-agnostic, CalDAV-based calendars (self-hosted servers, Nextcloud, Fastmail, etc.) have no vetted way to let Claude read events or find free time without routing through Google.

Proposed Solution

Add a vetted, generic CalDAV connector where a user enters their CalDAV server URL and credentials once, after which Claude can list calendars, read and create events, and find free time — similar to the existing Google Calendar connector, but provider-agnostic.

Alternative Solutions

No vetted alternative exists today. The workaround is manually checking the calendar app and relaying availability to Claude by hand.

Priority

Medium - Would be very helpful

Feature Category

MCP server integration

Use Case Example

I use a self-hosted CalDAV calendar (not Google or Apple). I'd like to ask Claude to 'find a free 30-minute slot next week' or 'add this event to my calendar', the same way Google Calendar-connected users can today.

Additional Context

CalDAV (RFC 4791) is a widely supported open standard used by Nextcloud, Fastmail, Radicale, and many other self-hosted or privacy-focused providers. This request is for the generic protocol, distinct from a vendor-specific connector like Google or Apple Calendar.