export declare const WORKER_CONTEXT_FORK_REFERENCE_SCHEMA_VERSION: 1;
/** Matches the maximum bounded transcript page exposed to worker context selection. */
export declare const MAX_WORKER_CONTEXT_FORK_MESSAGES = 64;
/** Reuses Pi's established hard ceiling for one model-visible bounded text projection. */
export declare const MAX_WORKER_CONTEXT_FORK_BYTES: number;
/** Aggregate ceiling shared by context selection and durable snapshot validation. */
export declare const MAX_WORKER_CONTEXT_FORK_TEXT_BLOCKS = 1024;
/** API transport identifiers are short protocol names, not model identifiers. */
export declare const MAX_WORKER_CONTEXT_FORK_API_LENGTH = 128;
/** Provider-neutral identity for one immutable, content-addressed worker birth snapshot. */
export interface WorkerContextForkReference {
    schemaVersion: typeof WORKER_CONTEXT_FORK_REFERENCE_SCHEMA_VERSION;
    identityDigest: string;
    contentDigest: string;
    messageCount: number;
    messageBytes: number;
}
/** Sole shape, bounds, canonicalization, and detached-copy owner for durable fork references. */
export declare function normalizeWorkerContextForkReference(value: unknown): WorkerContextForkReference;
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