Update specification to clarify max chunking settings (#5225)

* Update specification to clarify max chunking settings

* Generate output

* format + output

---------

Co-authored-by: Laura Trotta <[email protected]>

Author: kderusso

output/openapi/elasticsearch-openapi.json

@@ -316,7 +316,8 @@ export class InferenceEndpointInfoWatsonx extends InferenceEndpoint {
 export class InferenceChunkingSettings {
   /**
    * The maximum size of a chunk in words.
-   * This value cannot be higher than `300` or lower than `20` (for `sentence` strategy) or `10` (for `word` strategy).
+   * This value cannot be lower than `20` (for `sentence` strategy) or `10` (for `word` strategy).
+   * This value should not exceed the window size for the associated model.
    * @server_default 250
    */
   max_chunk_size?: integer

output/openapi/elasticsearch-serverless-openapi.json

@@ -79,6 +79,7 @@ export interface Request extends RequestBase {
   body: {
     /**
      * The chunking configuration object.
+     * Note that for ELSER endpoints, the max_chunk_size may not exceed `300`.
      * @ext_doc_id inference-chunking
      */
     chunking_settings?: InferenceChunkingSettings