export declare function safe_json_stringify(value: unknown): string | null;
export declare function summarize_value(value: unknown, depth?: number): unknown;
export declare function summarize_tool_args(tool_name: string, args: unknown): string | null;
export declare function summarize_tool_result(result: unknown): string | null;
export declare function summarize_headers(headers: Record<string, string>): string | null;
export declare function summarize_provider_payload(payload: unknown): string | null;