/**
 * Validation helpers — refinement loop exit detection and critique parsing.
 */
/**
 * Detect whether the user signaled "done" via AskUserQuestion in the
 * feedback stage. The feedback stage's prompt instructs the agent to
 * include one of the completion signal phrases when the user approves.
 *
 * Returns `true` if the refinement loop should exit.
 */
export declare function isRefinementComplete(feedbackResult: string): boolean;
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