calendar

name	calendar
description	Calendar canvas for displaying events and picking meeting times. Use when showing calendar views or when users need to select available time slots.

Calendar Canvas

Display calendar views and enable interactive meeting time selection.

Example Prompts

Try asking Claude:

• "Schedule a 30-minute meeting with Alice and Bob sometime next week"
• "Find a time when the engineering team is all free on Tuesday"
• "Show me my calendar for this week"
• "When is everyone available for a 1-hour planning session?"
• "Block off 2-4pm on Friday for focused work"

Scenarios

display (default)

View-only calendar display. User can navigate weeks but cannot select times.

canvas_spawn({
  kind: "calendar",
  scenario: "display",
  config: JSON.stringify({
    title: "My Week",
    events: [
      {id: "1", title: "Meeting", startTime: "2025-01-06T09:00:00", endTime: "2025-01-06T10:00:00"}
    ]
  })
})

meeting-picker

Interactive scenario for selecting a free time slot when viewing multiple people's calendars.

• Shows multiple calendars overlaid with different colors
• User can click on free slots to select a meeting time
• Selection is sent back via IPC
• Supports configurable time slot granularity (15/30/60 min)

canvas_spawn({
  kind: "calendar",
  scenario: "meeting-picker",
  config: JSON.stringify({
    calendars: [
      {
        name: "Alice",
        color: "blue",
        events: [
          {id: "1", title: "Standup", startTime: "2025-01-06T09:00:00", endTime: "2025-01-06T09:30:00"}
        ]
      },
      {
        name: "Bob",
        color: "green",
        events: [
          {id: "2", title: "Call", startTime: "2025-01-06T14:00:00", endTime: "2025-01-06T15:00:00"}
        ]
      }
    ],
    slotGranularity: 30,
    minDuration: 30,
    maxDuration: 120
  })
})

Configuration

Display Config

interface CalendarConfig {
  title?: string;
  events: CalendarEvent[];
}

interface CalendarEvent {
  id: string;
  title: string;
  startTime: string;  // ISO datetime
  endTime: string;    // ISO datetime
  color?: string;     // blue, green, red, yellow, magenta, cyan
}

Meeting Picker Config

interface MeetingPickerConfig {
  calendars: Calendar[];
  slotGranularity?: number;  // 15, 30, or 60 minutes (default: 30)
  minDuration?: number;      // Minimum meeting duration in minutes
  maxDuration?: number;      // Maximum meeting duration in minutes
}

interface Calendar {
  name: string;              // Person's name
  color: string;             // Calendar color
  events: CalendarEvent[];   // Their busy times
}

Controls

Display scenario:

• <-/-> or h/l: Navigate between days
• n or PageDown: Next week
• p or PageUp: Previous week
• t: Jump to today
• q or Esc: Quit

Meeting picker scenario:

• Mouse click: Select a free time slot
• <-/->: Navigate weeks
• t: Jump to today
• q or Esc: Cancel selection

Selection Result

interface MeetingSelection {
  startTime: string;  // ISO datetime
  endTime: string;    // ISO datetime
  duration: number;   // Minutes
}

API Usage

// Spawn meeting picker
const result = canvas_spawn({
  kind: "calendar",
  scenario: "meeting-picker",
  config: JSON.stringify({
    calendars: [
      { name: "Alice", color: "blue", events: [...] },
      { name: "Bob", color: "green", events: [...] },
    ],
    slotGranularity: 30,
  })
});

// Wait for user interaction, then close
// The canvas will send selection via IPC when user clicks