import type { WorkflowConfig } from "./types";
/**
 * Validates a `title`/`content` value at `path`. Returns an error message, or `null` when the
 * value is acceptable.
 * @param value The candidate value.
 * @param path Error path for this field, e.g. `steps[2].title`.
 * @param validateContent Custom content validator; when omitted, the value must be a `string`.
 */
type ContentValidator = (value: unknown, path: string) => string | null;
/** Options accepted by `validateWorkflowConfig` (and threaded through internally). */
export interface ValidateWorkflowConfigOptions {
    /**
     * Validates `title`/`content` values. Returns an error message, or `null` when the value is
     * acceptable. Omit this to keep the default strict behavior — `title`/`content` must be plain
     * strings — which is required for the untrusted-JSON path (`JSON.parse()` output). Callers using
     * a rich content type `T` (e.g. `ReactNode`) must supply this to accept non-string values.
     */
    readonly validateContent?: ContentValidator;
}
/**
 * Validates and narrows an unknown value to a `WorkflowConfig<T>`.
 *
 * Performs a single pass over the whole config, collecting every issue (unknown/extra keys, wrong
 * types, missing required fields, invalid nested options, builtins used in slots that cannot run
 * them, etc.) rather than throwing on the first one — see `ConfigValidationError`.
 *
 * By default, `title`/`content` must be plain strings — the runtime cannot otherwise know what
 * `T` is, and this default keeps the untrusted-JSON path strict. Pass `options.validateContent`
 * to accept a richer `T` (e.g. `ReactNode`).
 *
 * @param config The parsed JSON (or equivalent plain object) to validate.
 * @param options Validation options; see {@link ValidateWorkflowConfigOptions}.
 * @throws {ConfigValidationError} When one or more issues are found.
 * @returns The same value, narrowed to `WorkflowConfig<T>`.
 */
export declare function validateWorkflowConfig<T = string>(config: unknown, options?: ValidateWorkflowConfigOptions): WorkflowConfig<T>;
export {};