export interface SetupLog {
    path: string;
    line(s: string): void;
}
/** Timestamped append log for `cotal setup` — one file, also the first thing a
 *  Claude handoff is pointed at. Setup keeps it at `<project>/.cotal/setup.log`. Each entry stays on
 *  its one timestamped line, since a newline in an interpolated path or error message would
 *  otherwise start a line that reads as an entry of its own. The log is owner-private and is never
 *  appended through a symlink ({@link openPrivateAppend}). */
export declare function openSetupLog(path: string): SetupLog;
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