/**
 * BrowserActionLog — records browser operations for the session.
 */
export interface ActionLogEntry {
    timestamp: number;
    source: 'direct' | 'chat';
    action: string;
    details: string;
}
export declare class BrowserActionLog {
    private entries;
    private readonly maxEntries;
    /** Optional callback invoked whenever a new entry is added. */
    onChange: ((entry: ActionLogEntry) => void) | null;
    constructor(maxEntries?: number);
    add(source: 'direct' | 'chat', action: string, details: string): void;
    /** Add a pre-built entry without triggering onChange. */
    addEntry(entry: ActionLogEntry): void;
    getEntries(): ActionLogEntry[];
    exportAsText(): string;
    clear(): void;
    get size(): number;
}
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