Struct ActivityMessage 

pub struct ActivityMessage {
    pub id: MessageId,
    pub role: Role,
    pub activity_type: String,
    pub content: Value,
}

An activity message for tracking agent activities.

Activity messages represent structured agent activities like planning, research, or other non-text operations. The content is a flexible JSON object that can hold activity-specific data.

Example

use ag_ui_core::{ActivityMessage, MessageId};
use serde_json::json;

let activity = ActivityMessage::new(
    MessageId::random(),
    "PLAN".to_string(),
    json!({"steps": ["research", "implement", "test"]}),
);

assert_eq!(activity.activity_type, "PLAN");

Fields

id: MessageId

Unique identifier for this message.

role: Role

The role (always Activity).

activity_type: String

The type of activity (e.g., “PLAN”, “RESEARCH”).

content: Value

The activity content as a flexible JSON object.

Implementations

impl ActivityMessage

pub fn new( id: impl Into<MessageId>, activity_type: impl Into<String>, content: Value, ) -> ActivityMessage

Creates a new activity message with the given ID, type, and content.

pub fn with_content(self, content: Value) -> ActivityMessage

Sets the content for this activity message.

Trait Implementations

impl Clone for ActivityMessage

fn clone(&self) -> ActivityMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActivityMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ActivityMessage

fn deserialize<__D>( __deserializer: __D, ) -> Result<ActivityMessage, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ActivityMessage

fn eq(&self, other: &ActivityMessage) -> 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 Serialize for ActivityMessage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ActivityMessage