## Get an objective task by ID

`objectives.tasks.retrieve(id, **kwargs) -> ObjectiveTask`

**get** `/v1/workspaces/{workspaceId}/objectives/{objectiveId}/tasks/{id}`

Retrieves a task by ID from an objective

### Parameters

- `workspace_id: String`

- `objective_id: String`

- `id: String`

### Returns

- `class ObjectiveTask`

  ObjectiveTask represents a task within an objective, typically created and managed by an AI agent
  to track progress toward completing the objective.

  - `data: ObjectiveTaskData`

    - `completed: bool`

      Whether the task has been completed

    - `number: Integer`

      The sequential number of this task within the objective (auto-assigned, 1-based)

    - `task: String`

      Description of the task to be completed

    - `completed_at: Time`

      Timestamp when the task was marked as completed

  - `metadata: BareMetadata`

    BareMetadata contains the minimal metadata for a resource: the ID and an
    optional human-readable name. These are used for reference fields where the
    full metadata (account scoping, timestamps, labels, external IDs) is not
    needed — e.g., the tool references inside an agent variation spec or the
    tools assigned to an objective. Both fields are server-populated; clients
    provide IDs through sibling fields rather than by constructing a
    BareMetadata themselves.

    - `id: String`

    - `name: String`

      Human-readable name of the referenced resource, populated by the server
      on reads for convenience. Absent on references to resources that do not
      have a name (e.g., objective tasks).

### Example

```ruby
require "cadenya"

cadenya = Cadenya::Client.new(api_key: "My API Key")

objective_task = cadenya.objectives.tasks.retrieve("id", workspace_id: "workspaceId", objective_id: "objectiveId")

puts(objective_task)
```

#### Response

```json
{
  "data": {
    "completed": true,
    "number": 0,
    "task": "task",
    "completedAt": "2019-12-27T18:11:19.117Z"
  },
  "metadata": {
    "id": "id",
    "name": "name"
  }
}
```