{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/PlannerChecklistItem", "title": "PlannerChecklistItem", "type": "object", "description": "A checklist item on a Planner task", "properties": { "@odata.type": { "type": "string", "const": "microsoft.graph.plannerChecklistItem", "example": "example_value" }, "isChecked": { "type": "boolean", "description": "Whether the item is checked (completed)", "example": true }, "lastModifiedBy": { "$ref": "#/components/schemas/IdentitySet", "readOnly": true }, "lastModifiedDateTime": { "type": "string", "format": "date-time", "description": "The date and time the item was last modified", "readOnly": true, "example": "2026-01-15T10:30:00Z" }, "orderHint": { "type": "string", "description": "Hint used to order items in the checklist", "example": "example_value" }, "title": { "type": "string", "description": "Title of the checklist item", "example": "Example Title" } } }