Use this skill when a Dagster job/graph contains conditional execution logic: ops with multiple Out/branching outputs that are conditionally yielded, @op functions that decide which downstream op runs, DynamicOut fan-out used for branching, or conditional asset materialization (AutomationCondition / skip logic). Triggers: any Dagster op that conditionally yields one of several Outs, any graph that runs different downstream ops based on an upstream result, any asset whose execution is gated on a condition.