/**
 * Config Loader
 *
 * Reads a JSON config file, interpolates secrets/env vars, validates
 * against the merged schema, and returns a frozen ConfigStore.
 *
 * Merge order: schema defaults → config file → env overrides → explicit overrides.
 */
import type { SecretStore } from "@agentick/shared";
import { type FileConfig, type ConfigStore } from "./config.js";
/**
 * Resolve ${env:VAR} and ${secret:KEY} in string values.
 * Walks the object tree recursively. Returns a deep clone with resolved values.
 * Tracks which dot-paths came from secret interpolation (for redaction).
 */
export declare function interpolateConfig(raw: Record<string, unknown>, secrets?: SecretStore): Promise<{
    resolved: Record<string, unknown>;
    secretPaths: Set<string>;
}>;
export declare class ConfigValidationError extends Error {
    constructor(message: string);
}
export interface LoadConfigOptions {
    /** Path to config file (default: ./agentick.config.json) */
    path?: string;
    /** Secret store for ${secret:KEY} interpolation */
    secrets?: SecretStore;
    /** CLI/env overrides applied after file (highest priority) */
    overrides?: Partial<FileConfig>;
}
/**
 * Load config from file, interpolate, validate, and return a ConfigStore.
 * Does NOT call bindConfig() — callers bind explicitly.
 */
export declare function loadConfig(options?: LoadConfigOptions): Promise<ConfigStore>;
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