Stop a running job on request
What It Does
Cancellation first records the intention to stop, then asks orchestration to stop execution. A job with no execution handle becomes cancelled immediately. Eligibility population declares support, but callers cannot reach a Platform cancellation operation or screen.
The Flow
When Something Fails
A failed stop call does not erase the request. The caller can repeat it, and an observing task can settle cancellation itself. An aborted execution is cancelled only when a recorded request explains it; an unrequested abort is failed work.
Open Design Questions
Authority and management surfaces for stopping work remain the existing open product choice.