diff --git a/tools/doc_generator/src/main.py b/tools/doc_generator/src/main.py
index 40dd07c..31f1b92 100644
--- a/tools/doc_generator/src/main.py
+++ b/tools/doc_generator/src/main.py
@@ -170,4 +170,7 @@ def save_and_increment_index(state: DocumentProcessingState) -> DocumentProcessi
 
 # Execute
 if __name__ == "__main__":
-    document_processing_app.invoke({"document_index": 0, "llm_output_content": ""})
+    document_processing_app.invoke(
+        {"document_index": 0, "llm_output_content": ""},
+        {"recursion_limit": MAX_DOCUMENTS},
+    )
diff --git a/tools/doc_generator/src/system_prompt.py b/tools/doc_generator/src/system_prompt.py
index a24a65e..922e72e 100644
--- a/tools/doc_generator/src/system_prompt.py
+++ b/tools/doc_generator/src/system_prompt.py
@@ -36,4 +36,9 @@
 **TECHNICAL CONTEXT:** [CONTEXT_PLACEHOLDER]
 
 Generate a concise implementation document with exactly 4 actionable GitHub issues. Output only valid JSON.
+
+**TOPIC SELECTION RULES:**
+- For each new document, invent a fresh topic related to general software development (e.g., APIs, databases, frontend optimization, CI/CD, cloud infra, etc.).
+- Do not repeat topics across runs.
+- Avoid defaulting to JWT, authentication, or authorization unless explicitly asked.
 """