import { type CacheLayer, type CachePolicy, type LayeredPayload } from "./policy.js";
import { type ToolSchema } from "./tool-serializer.js";
export interface AssembleInput {
    tools: ToolSchema[];
    system: string;
    project?: string;
    messages: string[];
    policy: CachePolicy;
}
/** Produce the canonical 4-layer payload. Non-breakpoint providers
 *  still receive the same 4 blocks (just without breakpoint flags). */
export declare function assembleLayered(input: AssembleInput): LayeredPayload;
export declare function layerBytes(payload: LayeredPayload, layer: CacheLayer): string;
export declare function layerHash(payload: LayeredPayload, layer: CacheLayer): string;
export declare function layersInOrder(payload: LayeredPayload): CacheLayer[];
export declare function canonicalOrder(): readonly CacheLayer[];
//# sourceMappingURL=layers.d.ts.map