Struct UserMessageData 

pub struct UserMessageData {
    pub agent_mode: Option<UserMessageAgentMode>,
    pub attachments: Option<Vec<Value>>,
    pub content: String,
    pub delivery: Option<UserMessageDelivery>,
    pub interaction_id: Option<String>,
    pub is_autopilot_continuation: Option<bool>,
    pub native_document_path_fallback_paths: Option<Vec<String>>,
    pub parent_agent_task_id: Option<String>,
    pub source: Option<String>,
    pub supported_native_document_mime_types: Option<Vec<String>>,
    pub transformed_content: Option<String>,
    pub turn_id: Option<String>,
}

Session event “user.message”. Payload of user.message with displayed and model-transformed content, attachments, source/delivery metadata, mode, and telemetry IDs.

Fields

agent_mode: Option<UserMessageAgentMode>

The agent mode that was active when this message was sent

attachments: Option<Vec<Value>>

Files, selections, or GitHub references attached to the message

content: String

The user’s message text as displayed in the timeline

delivery: Option<UserMessageDelivery>

How this message was delivered to the agentic loop relative to loop state (idle-start vs. steering/queued while busy). The timing axis; combine with source (origin) for the full picture. Used for telemetry attribution.

interaction_id: Option<String>

CAPI interaction ID for correlating this user message with its turn

is_autopilot_continuation: Option<bool>

True when this user message was auto-injected by autopilot’s continuation loop rather than typed by the user; used to distinguish autopilot-driven turns in telemetry.

native_document_path_fallback_paths: Option<Vec<String>>

Path-backed native document attachments that stayed on the tagged_files path flow because native upload could not read them or would exceed the request size limit

parent_agent_task_id: Option<String>

Parent agent task ID for background telemetry correlated to this user turn

source: Option<String>

Origin of this message, used for timeline filtering and attribution (e.g., skill-pdf for hidden skill injection or agent-<agent-id> for an inter-agent prompt)

supported_native_document_mime_types: Option<Vec<String>>

Normalized document MIME types that were sent natively instead of through tagged_files XML

transformed_content: Option<String>

Transformed version of the message sent to the model, with XML wrapping, timestamps, and other augmentations for prompt caching

turn_id: Option<String>

The agent-loop turn ID that consumed this message; absent when no agent-loop turn consumed it

Trait Implementations

impl Clone for UserMessageData

fn clone(&self) -> UserMessageData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UserMessageData

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

Formats the value using the given formatter.

impl Default for UserMessageData

fn default() -> UserMessageData

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for UserMessageData

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for UserMessageData

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

where __S: Serializer,

Serialize this value into the given Serde serializer.