/**
 * Shared defaults used across all providers.
 */
export declare const DEFAULT_TIMEOUT_MS = 30000;
export declare const DEFAULT_MAX_RETRIES = 3;
export declare const DEFAULT_MAX_TOKENS = 1000;
export declare const DEFAULT_TEMPERATURE = 0.7;
/**
 * Minimal prompt used to validate API credentials on initialization.
 */
export declare const VALIDATION_PROMPT = "Hi";
export declare const DEFAULT_MODELS: {
    readonly claude: "claude-3-5-sonnet-20241022";
    readonly openai: "gpt-4o";
    readonly gemini: "gemini-2.5-flash";
    readonly openwebui: "llama3.1:latest";
    readonly 'claude-code': "sonnet";
};
export declare const DEFAULT_OPENWEBUI_BASE_URL = "http://localhost:3000";
export declare const DEFAULT_ANTHROPIC_VERSION = "2023-06-01";
/**
 * Bounds for configuration value validation.
 */
export declare const CONFIG_BOUNDS: {
    readonly timeoutMs: {
        readonly min: 1000;
        readonly max: 300000;
    };
    readonly maxRetries: {
        readonly min: 0;
        readonly max: 10;
    };
    readonly temperature: {
        readonly min: 0;
        readonly max: 1;
    };
    readonly topP: {
        readonly min: 0;
        readonly max: 1;
        readonly exclusiveMin: true;
    };
    readonly maxTokens: {
        readonly min: 1;
    };
};