Enum AgentEvent 

pub enum AgentEvent {
    MessageStart {
        message_id: String,
        role: AgentRole,
    },
    MessageComplete {
        message_id: String,
        content: String,
    },
    HiddenUserMessage {
        content: String,
    },
    StepStart {
        step_id: String,
        title: String,
        step_number: u32,
    },
    StepComplete {
        step_id: String,
        status: StepStatus,
        duration_ms: u128,
    },
    Thinking {
        content: String,
    },
    Text {
        content: String,
    },
    ToolCall {
        tool: String,
        args_json: Value,
        tool_call_id: String,
    },
    ToolResult {
        tool: String,
        result_text: String,
        tool_call_id: String,
        is_error: bool,
    },
    FinalResponse {
        content: String,
    },
}

Streamed events emitted by Agent::query_stream.

Variants

MessageStart

A new message started.

Fields

message_id: String

Deterministic message id generated by the SDK.

role: AgentRole

Role for the message.

MessageComplete

A message finished.

Fields

message_id: String

Message id.

content: String

Rendered message content.

HiddenUserMessage

Hidden user prompt injected by config.

Fields

content: String

Hidden prompt content.

StepStart

A tool execution step started.

Fields

step_id: String

Tool-call id.

title: String

Tool name.

step_number: u32

1-based step number for this assistant turn.

StepComplete

A tool execution step finished.

Fields

step_id: String

Tool-call id.

status: StepStatus

Step completion status.

duration_ms: u128

Execution duration in milliseconds.

Thinking

Model returned reasoning/thinking text.

Fields

content: String

Thinking content.

Text

Model returned regular text content.

Fields

content: String

Text content.

ToolCall

Model requested a tool call.

Fields

tool: String

Tool name.

args_json: Value

Raw JSON arguments.

tool_call_id: String

Provider/tool-call id.

ToolResult

Tool execution result was recorded.

Fields

tool: String

Tool name.

result_text: String

Result text returned to the model.

tool_call_id: String

Provider/tool-call id.

is_error: bool

Whether this tool result represents an error.

FinalResponse

Final response for the query.

Fields

content: String

Final assistant output.

Trait Implementations

impl Clone for AgentEvent

fn clone(&self) -> AgentEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AgentEvent

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

Formats the value using the given formatter.

impl PartialEq for AgentEvent

fn eq(&self, other: &AgentEvent) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AgentEvent