Struct WorkerResult 

pub struct WorkerResult {
    pub value: Value,
    pub ok: bool,
    pub stats: Option<WorkerStats>,
}

The value a WorkerFn hands back on success, folded into an OutputEvent::Final by the spawner.

Fields

value: Value

The worker fn’s output payload.

ok: bool

Whether the agent itself considers this a successful result (distinct from Result::Err — a worker fn can return Ok(..) with ok: false to signal an agent-level failure).

stats: Option<WorkerStats>

Optional normalized per-attempt stats sidecar (token usage / model / num_turns / adapter-specific raw data), produced by the worker boundary that knows them (agent-block result captor, subprocess stdout normalization, …). The spawner’s fold site forwards it to Engine::record_worker_stats; it never rides into OutputEvent::Final (the BP-chain value stays stats-free). None = no stats reported — every pre-stats worker fn is unaffected (#[serde(default)] keeps wire compat).

Implementations

impl WorkerResult

pub fn ensure_worker_kind(self, kind: &str) -> Self

Ensure stats.worker_kind is set — the design invariant that every dispatched step’s terminal StepEntry carries at least its worker kind label (“rust_fn” / “lua” / “agent_block” / “subprocess” / “operator” / …), even when no LLM-shaped stats (usage / model / num_turns) apply. Idempotent: if a boundary already reported a worker_kind (agent_block / subprocess stats sidecar, operator ack), that value wins; otherwise the fold site’s kind becomes the value. Called at every worker fold site (InProcSpawner spawn task, subprocess spawn task, OperatorDelegateMiddleware).

Trait Implementations

impl Clone for WorkerResult

fn clone(&self) -> WorkerResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorkerResult

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WorkerResult

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for WorkerResult

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

where __S: Serializer,

Serialize this value into the given Serde serializer.