Struct ActivityEvent 

pub struct ActivityEvent {
    pub workflow_id: WorkflowId,
    pub activity_id: ActivityId,
    pub attempt: u32,
    pub agent_id: Uuid,
    pub agent_role: String,
    pub emitted_at: DateTime<Utc>,
    pub worker_seq: u64,
    pub store_seq: Option<u64>,
    pub ephemeral: bool,
    pub kind: ActivityEventKind,
}

A live transcript event for one (workflow, activity, attempt) produced by an agent harness.

Streamed to the ops console in real time and persisted to a durable observability keyspace (except Self::ephemeral events). It is never mixed into workflow replay history — the activity’s single terminal result is the replay-authoritative output, not this transcript.

Ordering

Self::emitted_at and Self::worker_seq are best-effort producer-side ordering hints. Self::store_seq is assigned by the server at durable-commit time and is None until the event has been persisted — an unpersisted (e.g. ephemeral, or in-flight) event carries no store sequence.

Fields

workflow_id: WorkflowId

The workflow this activity belongs to.

activity_id: ActivityId

The activity within the workflow.

attempt: u32

The attempt number of the activity this event was produced during.

agent_id: Uuid

Sub-identity of the agent that produced this event — REQUIRED for multi-agent attribution (a single activity attempt may run several agents).

agent_role: String

The role/label of the producing agent (e.g. an orchestrator vs a sub-agent).

emitted_at: DateTime<Utc>

Producer-clock instant the event was emitted (best-effort ordering hint).

worker_seq: u64

Worker-local best-effort monotonic sequence.

Exported to TypeScript as number; see the module docs for the accepted 2^53 ceiling.

store_seq: Option<u64>

Server-stamped monotonic sequence assigned at durable-commit time; None until the event is persisted (ephemeral events are never persisted and always carry None).

Exported to TypeScript as number; see the module docs for the accepted 2^53 ceiling.

ephemeral: bool

When true, this event is WS-forward-only and is never persisted (token deltas).

kind: ActivityEventKind

The classified payload of this event.

Trait Implementations

impl Clone for ActivityEvent

fn clone(&self) -> ActivityEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActivityEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ActivityEvent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ActivityEvent

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ActivityEvent

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ActivityEvent

impl TS for ActivityEvent

type WithoutGenerics = ActivityEvent

If this type does not have generic parameters, then WithoutGenerics should just be Self. If the type does have generic parameters, then all generic parameters must be replaced with a dummy type, e.g ts_rs::Dummy or ().
The only requirement for these dummy types is that EXPORT_TO must be None.

type OptionInnerType = ActivityEvent

If the implementing type is std::option::Option<T>, then this associated type is set to T. All other implementations of TS should set this type to Self instead.

fn ident(cfg: &Config) -> String

Identifier of this type, excluding generic parameters.

fn docs() -> Option<String>

JSDoc comment to describe this type in TypeScript - when TS is derived, docs are automatically read from your doc comments or #[doc = ".."] attributes

fn name(cfg: &Config) -> String

Name of this type in TypeScript, including generic parameters

fn decl_concrete(cfg: &Config) -> String

Declaration of this type using the supplied generic arguments. The resulting TypeScript definition will not be generic. For that, see TS::decl(). If this type is not generic, then this function is equivalent to TS::decl().

fn decl(cfg: &Config) -> String

Declaration of this type, e.g. type User = { user_id: number, ... }. This function will panic if the type has no declaration.

fn inline(cfg: &Config) -> String

Formats this types definition in TypeScript, e.g { user_id: number }. This function will panic if the type cannot be inlined.

fn inline_flattened(cfg: &Config) -> String

Flatten a type declaration. This function will panic if the type cannot be flattened.

fn visit_generics(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all type parameters of this type.

fn output_path() -> Option<PathBuf>

Returns the output path to where T should be exported, relative to the output directory. The returned path does not include any base directory.

fn visit_dependencies(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all dependency of this type.

fn dependencies(cfg: &Config) -> Vec<Dependency>

where Self: 'static,

Resolves all dependencies of this type recursively.

fn export(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem. To export this type together with all of its dependencies, use TS::export_all.

fn export_all(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem, together with all of its dependencies. To export only this type, without its dependencies, use TS::export.

fn export_to_string(cfg: &Config) -> Result<String, ExportError>

where Self: 'static,

Manually generate bindings for this type, returning a String. This function does not format the output, even if the format feature is enabled.