export interface SchemaCheck {
    valid: boolean;
    errors: string[];
}
/**
 * Meta-validate a candidate schema document BEFORE it is ever compiled. Called
 * at registration time (register_task_schema). Three gates:
 *   1. it must be a plain JSON object,
 *   2. it must contain no $ref / $dynamicRef / $recursiveRef / $data,
 *   3. it must itself be a valid JSON Schema per ajv's meta-schema.
 * A document that fails here is NEVER passed to ajv.compile — the code-gen
 * surface is only reached by already-vetted documents.
 */
export declare function validateSchemaDocument(doc: unknown): SchemaCheck;
/**
 * Validate a parsed result object against a registered schema. The schema is
 * assumed already vetted by validateSchemaDocument at registration; we re-vet
 * defensively (cheap) so a tampered DB row can never reach ajv.compile unchecked.
 */
export declare function validateResult(id: string, doc: object, result: unknown): SchemaCheck;
/** Drop a single id (or all) from the compile cache. Test/teardown helper. */
export declare function clearSchemaCache(id?: string): void;
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