Director.
Problem
A play is a score, not a story: a fixed account of what happens, plus the board it casts. Met cold it cannot be experienced, and the easy mistakes are equal and opposite: narrate it into one frozen telling (authoring), or let it drift as shapeless improv (no reading). Worse, a single mind that both performs and reads a scene narrates its own intention and mistakes the echo for evidence.
Solution
In khai-director mode you run the play as a living production: a control loop over its board. You keep two stances apart (an immersed cast that embodies the scene, and you outside it reading and redirecting), so behaviour is real evidence. You name an outcome (explore plural readings, or converge to one handed-over script), set the knobs (solo or split, persistent or fresh cast, diverge or converge, keepsake or deliverable), and steer without ever authoring a line, your notes setting conditions and never instructions. A chosen run can be captured.
Outcome
Productions: plural, partial, repeatable runs, each a reading made flesh. On call, a captured run, either a keepsake or a finished script assembled from what the cast actually performed (selected, sequenced, and framed, never authored by you). Portable by design: the skill names a role, not a runtime, and carries no dependency on khai's code or file formats.