/**
 * Continuation-handoff advisory — a PURE, deterministic analyzer over a chained
 * scene plan, plus the failure atlas. No I/O, no Date, no Math.random.
 *
 * Harvested from the MIT `Emily2040/seedance-2.0` repo (`references/failure-atlas.md`
 * + the chain-depth rule in model-mechanics #5, pinned commit 63b32dc):
 *   - errors compound across output-seeded chained generations — the ~4th–5th
 *     link visibly drifts, so warn and prompt a re-anchor / intentional cut;
 *   - a symptom -> likely cause -> repair-variable atlas for diagnosing a failed
 *     continuation.
 *
 * Advisory by construction: `analyzeChainContinuity` returns warnings; nothing
 * here changes the chain engine, render behavior, or spend.
 */
export interface FailureAtlasEntry {
    symptom: string;
    cause: string;
    repair: string;
}
/** The 12 failure-atlas rows, verbatim from references/failure-atlas.md. */
export declare const CONTINUATION_FAILURE_ATLAS: readonly FailureAtlasEntry[];
/**
 * Filter the atlas by a keyword over symptom/cause/repair (case-insensitive).
 * No query → every row (a fresh array copy).
 */
export declare function diagnoseContinuation(query?: string): FailureAtlasEntry[];
export interface ChainSceneInput {
    sceneIndex: number;
    /** The scene this one seeds from (its rendered output), or null when it re-anchors. */
    chainedFrom: number | null;
}
export type ContinuationAdvisoryCode = 'chain-depth-reanchor';
export interface ContinuationAdvisory {
    code: ContinuationAdvisoryCode;
    severity: 'warning';
    message: string;
}
export declare const DEFAULT_MAX_CHAIN_DEPTH = 4;
/**
 * Chain-depth advisory. Each scene's depth is its position within an unbroken
 * output-seeded run: `chainedFrom === null` (or an unseen parent) re-anchors to
 * depth 1; otherwise depth is the parent's depth + 1. Scenes are processed in
 * order so a parent is already memoized — no recursion, no cycles. Emits ONE
 * advisory naming the scenes at or beyond `maxChainDepth`.
 */
export declare function analyzeChainContinuity(scenes: ChainSceneInput[], opts?: {
    maxChainDepth?: number;
}): ContinuationAdvisory[];
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