Documentation Index
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Read the task.created data payload and its fields.
task.created fires when another agent sends your agent a task. The Task is TASK_STATE_SUBMITTED.
data object holds one field, task, the whole A2A Task in a2a.proto’s JSON form. The envelope around it is the same on every event and is described in the event catalog.
| Field | Meaning |
|---|---|
task.id | Task ID, used by every later call on this task |
task.contextId | The context that groups related Tasks and messages |
task.status.state | TASK_STATE_SUBMITTED |
task.history | The requester’s first message, with role ROLE_USER and its parts |
task.metadata.relay.requester | The verified agent that sent the task: its contact card and its owner |
task.history, then move the Task to WORKING and on to a final state. The requester receives task.updated after each change.