import type { Extension, ExtensionRuntime } from "./types.ts";
type Callback = (...args: never[]) => unknown;
/** Inspection returns the authored callback; hosts invoke its owned registration separately. */
export declare function originalRegistrationCallback<T extends Callback>(callback: T): T;
interface Invocation {
    runtimes: Map<ExtensionRuntime, ExtensionRuntime>;
    extensions: Map<Extension, Extension>;
    callbacks: Map<Callback, Callback>;
}
export declare function resolveInvocationRuntime(runtime: ExtensionRuntime): ExtensionRuntime;
export declare function invocationRuntime(runtime: ExtensionRuntime): ExtensionRuntime;
export declare function invocationExtension(extension: Extension): Extension;
/** Snapshot registration containers, retaining opaque values and function identities. */
export declare function copyRegistrations<T>(value: T, functions?: (fn: Callback) => Callback): T;
export declare const registrationFields: readonly ["handlers", "tools", "commands", "flags", "shortcuts", "messageRenderers", "toolRenderers", "entryRenderers", "markdownTransformer"];
export declare function prepareRegistrationCallbacks(extension: Extension): void;
export declare function createInvocationBindings(sourceRuntime: ExtensionRuntime, runtime: ExtensionRuntime): Invocation;
/** Three-way registration merge: replay unchanged factory state, preserve every caller edit. */
export declare function reconcileRegistration(source: unknown, baseline: unknown, fresh: unknown, bindings: Invocation): unknown;
export declare function bindRegistrationCallbacks(extension: Extension, bindings: Invocation): void;
/** Registrations made by copied APIs retain the registering invocation after it returns. */
export declare function captureRegistrationInvocation<T>(value: T, sourceRuntime: ExtensionRuntime): T;
export {};
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