Macos Calendar

It handles the tricky bits like natural language date parsing ("next Monday at 2pm"), calendar selection, and recurrence rules without hitting locale formatting issues. The JSON-based interface is clean and the skill correctly guards against read-only calendars. Worth noting that it requires you to list calendars first before creating events, which is the right approach but adds a step. If you're on macOS and want Claude to actually modify your calendar instead of just suggesting events, this does the job. Works best when you're specific about times and calendar names.