Struct ToolOutputDeltaData 

pub struct ToolOutputDeltaData {
    pub tool_call_id: String,
    pub tool_name: String,
    pub delta: String,
    pub stream: String,
}

Data for tool.output.delta event.

Emitted by tools during execution to stream incremental output chunks. This enables live output rendering (e.g., bash stdout/stderr, command output) between tool.started and tool.completed. Generic — usable by any tool that produces streamed output (bashkit, Daytona exec, subagent speech, etc.).

The consumer accumulates deltas by tool_call_id for display. The final tool.completed result is authoritative — deltas are informational only.

Fields

tool_call_id: String

Tool call ID this output belongs to

tool_name: String

Tool name

delta: String

Incremental output chunk

stream: String

Output stream identifier (e.g., “stdout”, “stderr”)

Trait Implementations

impl Clone for ToolOutputDeltaData

fn clone(&self) -> ToolOutputDeltaData

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ToolOutputDeltaData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ToolOutputDeltaData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ToolOutputDeltaData> for EventData

fn from(data: ToolOutputDeltaData) -> Self

Converts to this type from the input type.

impl Serialize for ToolOutputDeltaData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.