Enum StreamEvent 

pub enum StreamEvent {
    FirstByte,
    ThinkingDelta(String),
    TextDelta(String),
    ToolUseStart {
        id: String,
        name: String,
    },
    ToolInputDelta {
        bytes_so_far: usize,
    },
    Done(ChatResponse),
    Error(String),
}

Incremental events emitted during a streaming chat turn.

Variants

FirstByte

First byte received from the server — agent should stop any waiting spinner.

ThinkingDelta(String)

Extended-thinking text delta (Anthropic thinking block).

TextDelta(String)

Visible assistant text delta.

ToolUseStart

A new tool_use block started.

Fields

id: String

name: String

ToolInputDelta

Incremental progress for the current tool_use block’s JSON input. bytes_so_far is the total accumulated size of the partial JSON received for this block — useful for driving progress indicators while the model streams large arguments (e.g. a full file body).

Fields

bytes_so_far: usize

Done(ChatResponse)

Final turn result — includes the full assembled content blocks.

Error(String)

Fatal error during streaming.

Trait Implementations

impl Clone for StreamEvent

fn clone(&self) -> StreamEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamEvent

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

Formats the value using the given formatter.