Module kind 

Well-known TraceEvent.kind values written by the engine itself. The kind axis is an open set — these constants exist so in-tree writers and tests agree on spelling, not to constrain writers.

Constants

CANCEL_REQUESTED

Cancellation was requested for the Run.

LONG_HOLD_WARN

LongHoldMiddleware observed a completion above its threshold.

RUN_FINISHED

A Run reached its terminal status (payload: {"status": ...}).

RUN_STARTED

A Run began dispatching (server-side, once per kick).

STEP_COMPLETED

A step reached its terminal outcome (payload carries the status label + timing summary; the authoritative record is the StepEntry appended in the same breath).

STEP_DISPATCHED

The dispatcher is about to spawn a step’s worker.

WORKER_DEGRADATION

A worker reported a degradation (mirrors the DegradationEntry rail so the trace stream is self-contained).