/**
 * The CRISPY framework: seven ordered context-engineering stages. Control flow is
 * deterministic and lives in code (not prompts) — `plan()` walks this list, gates
 * each stage on the prior artifact, and writes one markdown file per stage under
 * `${contextDir}/crispy/`. The ordinal prefix (`1-context.md`, …) keeps the
 * directory self-sorting and makes the gate dependency obvious on disk.
 */
export interface Stage {
    /** Stage key, also the `--stage` flag value. */
    readonly name: string;
    /** One-line purpose, embedded at the top of the artifact and in the index. */
    readonly purpose: string;
    /** Artifact filename written under `${contextDir}/crispy/` (ordinal-prefixed). */
    readonly artifact: string;
}
/**
 * Ordered CRISPY stages. The order IS the stage-gate: advancing to `STAGES[i]`
 * requires `STAGES[i-1].artifact` to already exist on disk.
 */
export declare const STAGES: readonly Stage[];
/** Look up a stage by name (the `--stage` value), or `undefined` if unknown. */
export declare function findStage(name: string): Stage | undefined;
/** Zero-based index of a stage in {@link STAGES}, or `-1` if not found. */
export declare function stageIndex(name: string): number;
/** The stage that must be completed before `name`, or `undefined` for the first stage. */
export declare function priorStage(name: string): Stage | undefined;