export declare function parentOf(pid: number): number | undefined;
export interface SessionFiles {
    write(auth: {
        addr: string;
        key: string;
        alias?: string;
    }): void;
    remove(): void;
}
export declare function createSessionFiles(dir: string): SessionFiles;
/**
 * The name of this Claude session, shared with the SessionStart hook that sets the session title:
 * whichever of the two runs first writes it (`<pid>.name`, exclusive create), the other adopts it.
 */
export declare function claimSessionName(dir: string, make: () => string): string;
/** The hub gave the session a different name than the one claimed (it was taken): keep them equal. */
export declare function settleSessionName(dir: string, name: string): void;
/**
 * The address of the Claude session this process runs under, if any: the session's MCP server left
 * its credentials under the pid of one of the ancestors. Never throws.
 */
export declare function findAncestorSessionAddr(dir: string, from?: number): string | undefined;
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