/**
 * Provider Config Validator
 *
 * Pure validation logic for configured model providers. Returns plain-text
 * messages without ANSI formatting; the CLI caller applies colors when printing.
 */
import type { VeryfrontConfig } from "../config/index.js";
export interface ValidationResult {
    valid: boolean;
    warnings: string[];
    errors: string[];
}
export declare function validateProviderConfig(config: VeryfrontConfig): ValidationResult;
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