export type WorkflowRailCacheSurface = "workflow-check" | "workflow-continue" | "workflow-implement";
export type CachedWorkflowRailOutput = {
    readonly full: boolean;
    readonly fullLines?: readonly string[];
    readonly projectDir: string;
    readonly railBodyLines: readonly string[];
    readonly surface: WorkflowRailCacheSurface;
    readonly uniqueLines: readonly string[];
};
export declare const RAIL_UNCHANGED_LINE = "rail unchanged (full text: `ph workflow implement --full`)";
export declare function cachedWorkflowRailOutput(input: CachedWorkflowRailOutput): string;