Module telemetry 

Native OpenTelemetry request-lifecycle spans.

Coarse runtime timing, causal parentage, request identity, and terminal outcomes. Engine-internal metrics and invariants are intentionally not instrumented here.

Structs

LifecycleRequest

Request root span plus the shared terminal recorder.

LifecycleTerminal

A terminal recorder that is safe to clone across completion and cancellation paths.

LifecycleTrace

Request-scoped lifecycle capture state.

Enums

LifecycleOperationRole

Operation owner used to distinguish the frontend and worker stages.

LifecycleStage

A duration-bearing boundary in the request-lifecycle convention.

TerminalOutcome

One-shot outcome recorded on the request root.

Constants

LIFECYCLE_ROOT_METADATA_KEY

Internal wire metadata marking requests with a frontend lifecycle root. Absent on legacy or uninstrumented frontends; those requests keep ordinary tracing.

LIFECYCLE_TARGET

Static tracing target used exclusively by lifecycle spans.

LIFECYCLE_TRACE_CONTEXT_KEY

Context-registry key used to preserve lifecycle identity through frontend stages.