import type { Api, AssistantMessage, Message, Model } from "../types.js";
/**
 * Normalize tool call ID for cross-provider compatibility.
 * OpenAI Responses API generates IDs that are 450+ chars with special characters like `|`.
 * Anthropic APIs require IDs matching ^[a-zA-Z0-9_-]+$ (max 64 chars).
 *
 * For aborted/errored turns, this function:
 * - Preserves tool call structure (unlike converting to text summaries)
 * - Injects synthetic "aborted" tool results
 */
/**
 * Credential-shaped token patterns scrubbed from outbound provider traffic when
 * credential redaction is enabled. Exported so hosts can route the same shapes
 * through reversible obfuscation (keyed placeholders restored before local tool
 * execution) instead of the irreversible `[*_token_redacted]` rewrite below —
 * an irreversible placeholder echoed back in edit-tool `old_string` can never
 * match the real bytes on disk.
 */
export declare const SENSITIVE_TOKEN_RE: RegExp;
/**
 * Toggle outbound credential-pattern redaction. When disabled (the default),
 * {@link redactSensitiveCredentials} and {@link redactSensitiveInObject} are
 * pass-throughs and outbound messages/system prompts leave the process
 * unmodified.
 */
export declare function configureCredentialRedaction(enabled: boolean): void;
export declare function redactSensitiveCredentials(text: string): string;
export declare function redactSensitiveInObject(val: unknown): {
    result: unknown;
    changed: boolean;
};
export declare function transformMessages<TApi extends Api>(messages: Message[], model: Model<TApi>, normalizeToolCallId?: (id: string, model: Model<TApi>, source: AssistantMessage) => string, maxNormalizedToolCallIdLength?: number, duplicateToolCallIdSuffixPrefix?: string, targetCompat?: Model<TApi>["compat"]): Message[];