Demo 02 · Interrupted paths

Failure and concurrency states

Select a demonstration outcome, then submit the form. The scenario selector sits outside the form and is never included in its payload.

Support request

Expected distinctions

Client and 422 validation failures become validation-failed and do not expose retry.
A rejected transport becomes retryable network-failed.
503 exposes retry; 400 does not.
The delayed response keeps one active attempt and restores controls afterward.
The duplicate scenario attempts a second submission while active; it is blocked and announced.