export { ENV_RETAIN_NATIVE_SESSIONS } from "../kernel/env-names.ts";
export interface NativeSessionHost {
    /** Explicit host opt-in captured once, not model-supplied. */ readonly nativeSessionRoot?: string;
}
export declare const nativeSessionRootFromEnv: (env: NodeJS.ProcessEnv) => string | undefined;
/** Explicit ordinary-host opt-in only. Never read a destination from tool/model parameters.
 * Allocate a fresh per-occurrence directory; no scan, existing-session takeover or transcript creation. */
export declare function allocateNativeSessionTarget(root: string, executionId: string): Promise<string>;
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