/**
 * humanizeLLMError — turn a raw provider/SDK error into a plain-language
 * sentence a NON-developer can act on.
 *
 * agentfootprint targets vibe-coding / non-developer builders. A raw
 * "[browser-anthropic] Failed to fetch" or "401 Unauthorized" means
 * nothing to them. This maps the common failure shapes to a friendly,
 * actionable message. The raw error is preserved on `.cause` (and via
 * `wrapLLMError`) so developers can still dig in.
 *
 * Pure + dependency-light: string/shape matching only. Extend the cases
 * as new provider failure modes surface — keep each message short and
 * tell the user what to DO.
 */
/** Map a thrown provider/SDK error to a friendly, actionable sentence. */
export declare function humanizeLLMError(err: unknown): string;
/**
 * Wrap a raw provider error in a fresh Error whose `.message` is the
 * humanized sentence, preserving the original on `.cause` for developers
 * (and "Copy for LLM"). Re-throw this from the LLM call site so the
 * friendly message flows through onError → onRunFailed → the monitor.
 */
export declare function wrapLLMError(err: unknown): Error;