Revert "feat(issue-656): Add explicit Markdown formatting instructions to default prompt template"

This reverts commit 03479c3.

Author: manavgup

backend/rag_solution/schemas/prompt_template_schema.py

@@ -13,23 +13,8 @@
 Context Documents:
 {context}
 
-FORMATTING REQUIREMENTS:
-- Use Markdown formatting for your answer (NO HTML)
-- For quantitative data (revenue, statistics, year-over-year changes), use Markdown tables
-- Use **bold** for key findings and important numbers
-- Use bullet lists (- item) for multiple distinct points
-- Keep paragraphs concise (3-4 sentences maximum)
-
-MARKDOWN TABLE EXAMPLE:
-| Year | Revenue | Change    |
-|------|---------|-----------|
-| 2019 | $1.2B   | -         |
-| 2020 | $975M   | -19.8%    |
-| 2021 | $774M   | -20.6%    |
-| 2023 | $61.9B  | +3.0%     |
-
 Please provide a structured answer with:
-1. A clear, concise Markdown-formatted answer to the question
+1. A clear, concise answer to the question
 2. A confidence score (0.0-1.0) based on the quality and relevance of the sources
 3. Citations to specific documents that support your answer
    - Include the document_id, title, and excerpt from the document

backend/rag_solution/services/prompt_template_service.py

@@ -225,46 +225,11 @@ def format_prompt_with_template(self, template: PromptTemplateBase, variables: d
             raise ValidationError(f"Failed to format prompt: {e!s}") from e
 
     def _format_prompt_with_template(self, template: PromptTemplateBase, variables: dict[str, Any]) -> str:
-        """Internal method to format prompt with a template object.
-
-        For RAG_QUERY templates, automatically appends Markdown formatting instructions
-        to ensure well-structured, readable responses.
-
-        Issue #655: Add explicit Markdown formatting requests to improve LLM output structure.
-        """
+        """Internal method to format prompt with a template object."""
         parts = []
-
-        # Add system prompt if present
         if template.system_prompt:
             parts.append(str(template.system_prompt))
-
-        # Add Markdown formatting instructions for RAG_QUERY templates
-        if template.template_type == PromptTemplateType.RAG_QUERY:
-            markdown_instructions = (
-                "\n\nIMPORTANT - Response Formatting Requirements:\n"
-                "Format your response in clean, well-structured Markdown:\n"
-                "- Use ## for main sections and ### for subsections\n"
-                "- Separate paragraphs with blank lines for better readability\n"
-                "- Keep paragraphs concise (2-4 sentences maximum)\n"
-                "- Use bullet points (-) for lists of items\n"
-                "- Use numbered lists (1., 2., 3.) for sequential steps\n"
-                "- Use **bold** for key concepts and important terms\n"
-                "- Use *italic* for emphasis or definitions\n"
-                "- Format tables using Markdown table syntax with | separators\n"
-                "- Add blank lines before and after tables, lists, and code blocks\n"
-                "\nExample structure:\n"
-                "## Main Topic\n\n"
-                "Brief introduction paragraph.\n\n"
-                "### Key Points\n\n"
-                "- First important point\n"
-                "- Second important point\n\n"
-                "Explanatory paragraph with **key terms** highlighted."
-            )
-            parts.append(markdown_instructions)
-
-        # Add formatted template
         parts.append(template.template_format.format(**variables))
-
         return "\n\n".join(parts)
 
     # Legacy method for backward compatibility - will be deprecated