/**
 * Shared JSON-Schema keyword sets and the error type used by the
 * codegen emitter. Lives in its own module so `codegen-emit.ts`
 * stays under the 500-line per-file budget.
 *
 * @module cli/codegen-emit-keywords
 */
import { WeftError } from '../core/weft-error.ts';
export declare const ANNOTATION_ONLY_KEYWORDS: ReadonlySet<string>;
/** Keys each per-shape dispatcher in the emitter understands. */
export declare const PRIMITIVE_SUPPORTED_KEYS: readonly ["type"];
export declare const OBJECT_SUPPORTED_KEYS: readonly ["type", "properties", "required", "additionalProperties"];
export declare const ARRAY_SUPPORTED_KEYS: readonly ["type", "items", "prefixItems", "additionalItems"];
/**
 * Thrown by the emitter when the converter cannot produce a type it
 * is willing to stand behind (e.g. recursion overflow). Callers must
 * translate this to a user-facing diagnostic.
 */
export declare class CodegenEmitError extends WeftError<'CodegenEmitError'> {
    constructor(message: string);
}
/**
 * Returns true when `node` has any own key not in `expected` and not
 * in {@link ANNOTATION_ONLY_KEYWORDS}. Used by combinator,
 * enum/const, and type/shape dispatchers to detect sibling
 * constraints they cannot compose with.
 */
export declare function hasUnexpectedSibling(node: Record<string, unknown>, expected: readonly string[]): boolean;