/**
 * Role Resolver
 *
 * Maps role names to their configured agent settings by merging
 * role-specific configuration with default values.
 */
import type { AgentConfig, Config } from '../types.js';
/**
 * RoleResolver maps role names to fully resolved AgentConfig objects.
 *
 * It handles:
 * - Looking up role configurations by name
 * - Merging role-specific overrides with defaults
 * - Providing helpful error messages for unknown roles
 * - Hot reload support via updateConfig()
 */
export declare class RoleResolver {
    private roles;
    private defaults;
    /**
     * Create a new RoleResolver with the given configuration.
     *
     * @param config - The full AgentRouter configuration
     */
    constructor(config: Config);
    /**
     * Resolve a role name to its full agent configuration.
     *
     * Merges the role's specific settings with default values, where
     * role-specific values take precedence over defaults.
     *
     * @param role - The role name to resolve (e.g., "coder", "critic")
     * @returns The fully resolved AgentConfig
     * @throws Error if the role is not found in configuration
     */
    resolve(role: string): AgentConfig;
    /**
     * Check if a role exists in the configuration.
     *
     * @param role - The role name to check
     * @returns true if the role exists, false otherwise
     */
    hasRole(role: string): boolean;
    /**
     * Get a list of all configured role names.
     *
     * @returns Array of role names
     */
    listRoles(): string[];
    /**
     * Update the resolver with a new configuration.
     *
     * Used for hot reload when the config file changes.
     *
     * @param config - The new configuration to use
     */
    updateConfig(config: Config): void;
}
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