draft: validate, resolve the target, then run one stage in-process. Cancellation (signal) is honoured between topics, steps and prompts; a stage never leaves a half-written checkpoint (a checkpoint is written whole, at an evaluation boundary).
draft
signal
Optional
draft: validate, resolve the target, then run one stage in-process. Cancellation (signal) is honoured between topics, steps and prompts; a stage never leaves a half-written checkpoint (a checkpoint is written whole, at an evaluation boundary).