export declare class SanitizerError extends Error {
    readonly code: 'input_too_long';
    readonly field?: string;
    readonly maxLength: number;
    readonly actualLength: number;
    constructor(args: {
        code: 'input_too_long';
        maxLength: number;
        actualLength: number;
        field?: string;
    });
}
export declare const HARD_STRIP_PATTERNS: readonly RegExp[];
export declare const UNTRUSTED_OPEN = "<UNTRUSTED_USER_INPUT>";
export declare const UNTRUSTED_CLOSE = "</UNTRUSTED_USER_INPUT>";
export declare const MAX_BRIEF_LENGTH = 8000;
export declare const MAX_STYLE_LENGTH = 200;
export declare const MAX_ASPECT_RATIO_LENGTH = 32;
export declare const MAX_NOTES_LENGTH = 1000;
export declare const MAX_LATEST_USER_TEXT_LENGTH = 12000;
export declare const MAX_PRIOR_USER_TEXT_LENGTH = 3600;
export declare const MAX_PRIOR_ASSISTANT_TEXT_LENGTH = 6000;
export declare const MAX_CURRENT_MESSAGE_LENGTH = 12000;
export declare const MAX_RECENT_TURN_LENGTH = 6000;
export declare const MAX_CONVERSATION_SUMMARY_LENGTH = 6000;
export type SanitizeField = 'brief' | 'style' | 'aspectRatio' | 'notes' | 'latestUserText' | 'priorUserText' | 'priorAssistantText' | 'currentMessage' | 'recentTurn' | 'conversationSummary';
export interface SanitizeResult {
    ok: boolean;
    value?: string;
    reason?: 'too-long' | 'forbidden-control-character' | 'not-a-string';
    field: SanitizeField;
}
export interface SanitizeUntrustedStringOptions {
    stripDelimiters?: boolean;
    maxLength?: number;
    field?: string;
}
export declare function sanitizeUntrustedString(input: string, opts?: SanitizeUntrustedStringOptions): string;
export declare function sanitizeUntrustedString(raw: unknown, field: SanitizeField): SanitizeResult;
export declare function escapeAttribute(value: string): string;
export declare function wrapAsUntrustedUserInput(field: string, content: string): string;
export declare function wrapAsUntrustedUserInput(parts: readonly string[]): string;
//# sourceMappingURL=sanitizer.d.ts.map