II.
ProtocolMessage overview
Reference · liveprotocol-message:stream-event
SDKMessage / StreamEvent overview
Granular streaming delta — text tokens, thinking deltas, tool_use argument deltas — emitted while a turn is being assembled.
Attributes
displayName
SDKMessage / StreamEvent
messageType
StreamEvent
subtype
none
direction
core-to-user
terminal
false
errorCategory
none
payloadSchema
type
StreamEvent
fields
- event
- data
description
Granular streaming delta — text tokens, thinking deltas, tool_use
argument deltas — emitted while a turn is being assembled.
Outgoing edges
None.
Incoming edges
emits_message_type3
- agent-core-impl:claude-agent-sdk.core@current·AgentCoreImplClaude Agent SDK Core (current)
- agent-core-impl:claude-code.core@1.x·AgentCoreImplClaude Code Core (1.x)
- provider:anthropic·ModelProviderProductAnthropic