import { type MonoRuntimeLike, type RuntimeModelReference } from "@mono-agent/runtime-adapter";
import type { AgentHarnessOptions } from "./types.js";
export interface ProviderSessionHandle {
    readonly providerSessionId: string;
    readonly modelKey?: string;
}
export type SessionRuntimeResolver = (modelKey?: string) => MonoRuntimeLike;
/** Normalize accepted input aliases before writing a strict persisted binding. */
export declare function sessionModelKey(model: RuntimeModelReference): string;
/** Persisted keys are canonical references, never aliases or routing guesses. */
export declare function assertSessionModelKey(value: unknown): asserts value is string;
/** Resolve each session's owner with stable runtime identity for this lifetime. */
export declare function createSessionRuntimeResolver(options: Pick<AgentHarnessOptions, "runtime" | "model" | "runtimeForModel">): SessionRuntimeResolver;
/** Reject contradictory ownership before any destructive operation starts. */
export declare function uniqueSessionHandles(handles: readonly ProviderSessionHandle[]): readonly ProviderSessionHandle[];
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