emphasize strict JSON response format

Author: jontsai

lib/openai/constants/prompts.py

@@ -2,9 +2,8 @@
     'Target reading grade level: {target_reading_grade_level}'
 )
 
-OPENAI_PROMPT_INSTRUCTION__JSON_RESPONSE = 'The response content MUST ONLY contain strictly valid JSON, and MUST be able to be parsed directly using standard Python `json.loads(response_content)`.'  # noqa: E501
-
-
 OPENAI_PROMPT_INSTRUCTION__EXPECTED_RESPONSE_FORMAT = (
     'Expected response format:'
 )
+
+OPENAI_PROMPT_INSTRUCTION__JSON_RESPONSE = 'The response content MUST ONLY contain strictly valid JSON, no wrapping text or delimiters, and MUST be able to be parsed directly using standard Python: `json.loads(response_content)`.'  # noqa: E501

lib/openai/models/system_prompt.py

@@ -89,8 +89,6 @@ def response_parameters_instructions(self) -> list[str]:
                     target_reading_grade_level=self.target_reading_grade_level
                 )
             )
-        if self.as_json:
-            content_lines.append(OPENAI_PROMPT_INSTRUCTION__JSON_RESPONSE)
 
         if self.expected_response_format:
             content_lines.append(
@@ -101,6 +99,10 @@ def response_parameters_instructions(self) -> list[str]:
                 + self.expected_response_format
                 + '```'
             )
+
+        if self.as_json:
+            content_lines.append(OPENAI_PROMPT_INSTRUCTION__JSON_RESPONSE)
+
         return content_lines
 
     @property