/** Bounded, descriptor-only inspection for extension contract implementations. */
/** Captured invocation intrinsic for extension methods. */
export declare const applyExtensionMethod: typeof Reflect.apply;
/** Captured freeze intrinsic for immutable contract snapshots. */
export declare const freezeExtensionContract: typeof Object.freeze;
/** Captured array brand check for extension-boundary values. */
export declare const isExtensionArray: typeof Array.isArray;
/** Read one own descriptor through the captured inspection intrinsic. */
export declare function getExtensionOwnPropertyDescriptor(value: object, property: PropertyKey): PropertyDescriptor | undefined;
/** Return whether a descriptor owns a data value without walking its prototype. */
export declare function isDataPropertyDescriptor(descriptor: PropertyDescriptor | undefined): descriptor is PropertyDescriptor & {
    value: unknown;
};
/** Validate the canonical, bounded identity shared by asset engine contracts. */
export declare function isStableExtensionCacheIdentity(value: unknown, maxCharacters: number): value is string;
/**
 * Find a property without invoking accessors or trusting a hostile prototype
 * chain. Cycles and implausibly deep chains fail closed.
 */
export declare function findExtensionPropertyDescriptor(value: object, property: PropertyKey): PropertyDescriptor | undefined;
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