# Calendar developer access

Agendas, events, availability, conflicts, recurrence, attendance responses, and expiring scheduling holds.

- **Lifecycle:** preview
- **Runtime:** restricted
- **Owner:** Vision Calendar
- **Audience:** vision-calendar
- **App entitlement:** calendar
- **Workspace:** Calendar workspace reference required

## Authority boundary

Calendar owns scheduling resources, workspace and actor bindings, visibility, recurrence, conflict, and concurrency rules.

## Approved interfaces

- **Calendar API** (OPENAPI 1.20.0) — [approved artifact](/openapi-calendar-v1.json); SHA-256 `ebe491ac249e2cc93315a3ec00300e10f78a28f3ed93d8f232d33320de6e876c`
- **Calendar MCP capability inventory** (MCP 1.0.1) — [approved artifact](/mcp-calendar-v1.json); SHA-256 `314e4a5255f628353b888726f75ee9c310a2756d78a5c0bed10584d8edde84ef`

Documentation completeness does not change lifecycle or runtime availability.