End-to-end workflow that describes the way Fable ran sessions - parallel evidence subagents when the host supports them, one committed plan, surgical execution with an intent gate, adversarial verification, honest outcome-first report. Use for non-trivial multi-step tasks when the user says "/fable-loop", "run the fable loop", or "do this the way Fable would". For the rules alone without orchestration, use fable-method; for the plain task cycle without subagents, use task-cycle; for large multi-phase projects, prefer the GSD workflow and use this inside phases.