feat(aggregation): Implement sub-agent summarization pass

src/mma_prompts.py

@@ -179,3 +179,32 @@ RULES:
 Analyze this error and generate the patch:
 """
 
+TIER4_SUMMARIZE_CODE_PROMPT: str = """You are a Tier 4 QA Agent specializing in code summarization.
+Your goal is to provide a concise, high-signal summary of the provided code file.
+Focus on the primary responsibility of the module and its key architectural components.
+
+INPUT:
+- File Path: {file_path}
+- Heuristic Outline: {outline}
+- Raw Content:
+{content}
+
+OUTPUT REQUIREMENT:
+Provide a 1-2 sentence high-level summary followed by a brief bulleted list of key features or responsibilities.
+Keep it extremely concise. Do NOT repeat the outline.
+"""
+
+TIER4_SUMMARIZE_TEXT_PROMPT: str = """You are a Tier 4 QA Agent specializing in document summarization.
+Your goal is to provide a concise, high-signal summary of the provided text/markdown file.
+
+INPUT:
+- File Path: {file_path}
+- Heuristic Outline: {outline}
+- Raw Content:
+{content}
+
+OUTPUT REQUIREMENT:
+Provide a 1-2 sentence high-level summary of the document's purpose and key takeaways.
+Keep it extremely concise.
+"""
+