import { Config } from "./schema.js";
type MutableConfigObject = Record<string, unknown>;
export declare class ConfigLoadError extends Error {
    readonly code: "config_invalid" | "config_unwritable";
    constructor(code: "config_invalid" | "config_unwritable", message: string);
}
/**
 * Loads and validates the server configuration.
 *
 * Priority (highest wins):
 *   1. Environment variable overrides (MOODLE_URL, LOGGING_LEVEL, etc.)
 *   2. config.json on disk
 *   3. Schema defaults
 *
 * Fails loudly with a readable error if the config is invalid —
 * no silent fallbacks, no half-broken startup.
 */
export declare function loadConfig(): Config;
export declare function persistConfig(configPath: string, cfg: MutableConfigObject): void;
export declare function resolveConfigPath(): string;
export declare function resolvePluginSearchPaths(searchPaths: Config["plugins"]["searchPaths"], configPath?: string): Config["plugins"]["searchPaths"];
/**
 * Reads and returns the MOODLE_TOKEN from the environment.
 * Fails if not set — the token is required for all Moodle API calls.
 */
export declare function loadToken(): string;
export {};
//# sourceMappingURL=loader.d.ts.map