Studio run

One execution of a Studio pipeline, with one recorded node run per node, or per item when a node fans out.

Runs live in memory while executing and are persisted step by step; after a worker restart, orphaned runs are re-queued by a watchdog. A fan-out edge runs an agent once per item of a list, for example once per chunk of a grant document, so each call is visible on its own. Cancelling a run only marks it in the database; the in-memory work stops at the next restart.