Addresses feedback.

Author: szabosteve

specification/inference/_types/CommonTypes.ts

@@ -799,9 +799,7 @@ export class CustomRequestParams {
    * The body structure of the request. It requires passing in the string-escaped result of the JSON format HTTP request body.
    * For example:
    * ```
-   * "request":{
-   *   "content":"{\"input\":${input}}"
-   * }
+   * "request": "{\"input\":${input}}"
    * ```
    * > info
    * > The content string needs to be a single line except using the Kibana console.
@@ -810,18 +808,6 @@ export class CustomRequestParams {
 }
 
 export class CustomResponseParams {
-  /**
-   * Specifies the path to the error message in the response from the custom service.
-   * For example:
-   * ```
-   * "response": {
-   *   "error_parser": {
-   *     "path": "$.error.message"
-   *   }
-   * }
-   * ```
-   */
-  error_parser: UserDefinedValue
   /**
    * Specifies the JSON parser that is used to parse the response from the custom service.
    * Different task types require different json_parser parameters.

specification/inference/put_custom/PutCustomRequest.ts

@@ -30,7 +30,8 @@ import { InferenceChunkingSettings } from '@inference/_types/Services'
 /**
  * Create a custom inference endpoint.
  *
- * You can create an inference endpoint to perform an inference task with a custom model that supports the HTTP format.
+ * The custom service gives more control over how to interact with external inference services that aren't explicitly supported through dedicated integrations.
+ * The custom service gives you the ability to define the headers, url, query parameters, request body, and secrets.
  * @rest_spec_name inference.put_custom
  * @availability stack since=8.13.0 stability=stable visibility=public
  * @availability serverless stability=stable visibility=public