A caller broke a public-API contract — a call the engine rejects
without writing anything: an invalid tag, a workflow.query GROQ that
never binds $tag, a bare id where a GDR URI is required, an action,
activity, or field the definition never declared, or a startInstanceinstanceId reused for a different start (or a discarded one). Fix the
call site; retrying cannot succeed.
A caller broke a public-API contract — a call the engine rejects without writing anything: an invalid
tag, aworkflow.queryGROQ that never binds$tag, a bare id where a GDR URI is required, an action, activity, or field the definition never declared, or astartInstanceinstanceIdreused for a different start (or a discarded one). Fix the call site; retrying cannot succeed.