/**
 * Darwin — Agent Definition & Config
 *
 * Factory functions for creating validated agent definitions
 * and merging config with sensible defaults.
 */
import type { AgentDefinition, DarwinConfig } from '../types.js';
/**
 * Define and validate an agent definition.
 * Returns the definition with defaults applied for optional fields.
 *
 * @example
 * ```ts
 * const researcher = defineAgent({
 *   name: 'researcher',
 *   role: 'Deep Research Agent',
 *   description: 'Researches topics with web sources',
 *   systemPrompt: 'You are a research agent...',
 *   mcp: ['tavily', 'memory'],
 *   tools: ['Read', 'Glob', 'Grep'],
 * });
 * ```
 */
export declare function defineAgent(def: AgentDefinition): AgentDefinition;
/**
 * Define a Darwin configuration by merging partial overrides with defaults.
 *
 * @example
 * ```ts
 * const config = defineConfig({
 *   memory: 'postgres',
 *   postgresUrl: 'postgresql://...',
 *   evolution: { enabled: true },
 * });
 * ```
 */
export declare function defineConfig(config: Partial<DarwinConfig>): DarwinConfig;
/**
 * Load config from darwin.config.ts in the current working directory.
 * Falls back to defaults if no config file is found.
 *
 * Also checks for DARWIN_POSTGRES_URL env var and auto-sets
 * memory: 'postgres' + postgresUrl when present.
 */
export declare function loadConfig(): Promise<DarwinConfig>;
/**
 * Synchronous config loader — returns defaults only.
 * Used by callers that cannot await (kept for backward compatibility).
 *
 * @deprecated Use loadConfig() (async) instead.
 */
export declare function loadConfigSync(): DarwinConfig;
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