/**
 * Secret Resolver Chain
 *
 * Tries resolvers in order; first non-undefined value wins per key.
 * Includes a factory function to instantiate resolvers from config objects.
 */
import type { SecretResolver, SecretResolverChainConfig } from './types.js';
/**
 * Chain of secret resolvers.
 * Tries each resolver in order; first non-undefined value wins.
 */
export declare class SecretResolverChain implements SecretResolver {
    readonly name = "chain";
    private readonly resolvers;
    constructor(resolvers: SecretResolver[]);
    resolve(key: string): Promise<string | undefined>;
    resolveAll(keys: string[]): Promise<Record<string, string>>;
    dispose(): Promise<void>;
    /** Get the list of resolvers in the chain (for testing/debugging) */
    getResolvers(): ReadonlyArray<SecretResolver>;
    /**
     * Eagerly load all .env entries into process.env.
     * Only seeds keys that are not already set in process.env.
     * This ensures server config like MATIMO_MCP_TOKEN is available
     * before tool registration and HTTP token checks.
     */
    seedProcessEnv(): Promise<void>;
}
/**
 * Create a SecretResolverChain from a config object.
 * If no config is provided, defaults to env-only resolution.
 */
export declare function createResolverChain(config?: SecretResolverChainConfig): SecretResolverChain;
//# sourceMappingURL=resolver-chain.d.ts.map