import { type DirectToolDisplayField } from "./toolCatalogDefinitions.js";
interface JsonSchemaObject extends Record<string, unknown> {
    type?: string | string[];
    description?: string;
    enum?: unknown[];
    required?: string[];
    properties?: Record<string, unknown>;
    items?: unknown;
    anyOf?: unknown[];
    oneOf?: unknown[];
    const?: unknown;
}
export declare function getDirectToolDisplayFields(toolName: string): DirectToolDisplayField[];
/** Operation summaries plus exact nested-selector groups for compact views.
 * A group such as tree:syntax preserves fields, enums, and numeric limits that
 * would otherwise be merged with the filesystem branch. */
export declare function getDirectToolVariantDisplayFields(toolName: string): Record<string, DirectToolDisplayField[]>;
/** Top-level fields accepted by the schema branches compatible with the
 * selectors already present in a query. This keeps recovery suggestions inside
 * the active discriminated-union branch instead of the merged catalog view. */
export declare function getDirectToolAllowedFieldNames(toolName: string, query: Readonly<Record<string, unknown>>): ReadonlySet<string>;
export declare function describeSchemaConstraints(schema: JsonSchemaObject): string | undefined;
export declare function describeSchemaType(schema: JsonSchemaObject): string;
export declare function collectDisplayFields(properties: Record<string, unknown>, requiredFields: ReadonlySet<string>, prefix?: string): DirectToolDisplayField[];
export declare function buildExampleValue(name: string, type: string): unknown;
export declare function buildScalarExampleValue(name: string, type: string): unknown;
export declare function isRecord(value: unknown): value is Record<string, unknown>;
export declare function isJsonSchemaObject(value: unknown): value is JsonSchemaObject;
export declare function hasSchemaDefault(value: unknown): boolean;
export {};