import { type LLMProvider } from '../llm/index.js';
export interface RalphConfig {
    apiKey?: string;
    defaultModel?: string;
    llm?: {
        provider?: LLMProvider;
        model?: string;
    };
    providers?: {
        anthropic?: {
            apiKey: string;
        };
        openai?: {
            apiKey: string;
        };
        openrouter?: {
            apiKey: string;
        };
    };
    agent?: {
        default?: string;
        usesClaudeCodeCLI?: boolean;
    };
    setupCompleted?: boolean;
    setupVersion?: string;
}
export declare function ensureConfigDir(): void;
export declare function readConfig(): RalphConfig;
export declare function writeConfig(config: RalphConfig): void;
export declare function getApiKey(): Promise<string | null>;
export declare function promptForApiKey(): Promise<string | null>;
export declare function isClaudeCliInstalled(): Promise<boolean>;
/**
 * Get the configured LLM provider
 * Priority: config file > auto-detect from env > default (anthropic)
 */
export declare function getLLMProvider(): LLMProvider;
/**
 * Get API key for a specific provider
 * Priority: env var > config file providers.X.apiKey > legacy apiKey (for anthropic)
 */
export declare function getLLMApiKey(provider: LLMProvider): string | null;
/**
 * Get API key silently (no prompt) - for wizard use
 * Returns provider and key, or null if none available
 */
export declare function getConfiguredLLM(): {
    provider: LLMProvider;
    apiKey: string;
} | null;
/**
 * Set LLM provider in config
 */
export declare function setLLMProvider(provider: LLMProvider): void;
/**
 * Set API key for a provider
 */
export declare function setLLMApiKey(provider: LLMProvider, apiKey: string): void;
/**
 * Get configured model for LLM
 */
export declare function getLLMModel(): string | null;
/**
 * Interactive prompt for LLM provider selection and API key
 */
export declare function promptForLLMSetup(): Promise<{
    provider: LLMProvider;
    apiKey: string;
} | null>;
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