feat(conductor): Add retry loop for Tech Lead JSON parsing

src/conductor_tech_lead.py

@@ -21,29 +21,35 @@ def generate_tickets(track_brief: str, module_skeletons: str) -> list[dict[str,
  old_system_prompt = ai_client._custom_system_prompt
  ai_client.set_custom_system_prompt(system_prompt or "")
  ai_client.current_tier = "Tier 2"
+ last_error = None
  try:
- # 3. Call Tier 2 Model
-  response = ai_client.send(
-   md_content="", 
-   user_message=user_message
-  )
-  # 4. Parse JSON Output
-  # Extract JSON array from markdown code blocks if present
-  json_match = response.strip()
-  if "```json" in json_match:
-   json_match = json_match.split("```json")[1].split("```")[0].strip()
-  elif "```" in json_match:
-   json_match = json_match.split("```")[1].split("```")[0].strip()
-   # If it's still not valid JSON, try to find a [ ... ] block
-  if not (json_match.startswith('[') and json_match.endswith(']')):
-   match = re.search(r'\[\s*\{.*\}\s*\]', json_match, re.DOTALL)
-   if match:
-    json_match = match.group(0)
-  tickets: list[dict[str, Any]] = json.loads(json_match)
-  return tickets
- except Exception as e:
-  print(f"Error parsing Tier 2 response: {e}")
-  return []
+  for _ in range(3):
+   try:
+   # 3. Call Tier 2 Model
+    response = ai_client.send(
+     md_content="", 
+     user_message=user_message
+    )
+    # 4. Parse JSON Output
+    # Extract JSON array from markdown code blocks if present
+    json_match = response.strip()
+    if "```json" in json_match:
+     json_match = json_match.split("```json")[1].split("```")[0].strip()
+    elif "```" in json_match:
+     json_match = json_match.split("```")[1].split("```")[0].strip()
+     # If it's still not valid JSON, try to find a [ ... ] block
+    if not (json_match.startswith('[') and json_match.endswith(']')):
+     match = re.search(r'\[\s*\{.*\}\s*\]', json_match, re.DOTALL)
+     if match:
+      json_match = match.group(0)
+    tickets: list[dict[str, Any]] = json.loads(json_match)
+    return tickets
+   except json.JSONDecodeError as e:
+    last_error = e
+    correction = f"\n\nYour previous output failed to parse as JSON: {e}. Here was your raw output:\n{json_match[:500]}\n\nPlease fix the formatting and output ONLY valid JSON array."
+    user_message += correction
+    print(f"JSON parsing error, retrying... ({_ + 1}/3)")
+  raise RuntimeError(f"Failed to generate valid JSON tickets after 3 attempts. Last error: {last_error}")
  finally:
  # Restore old system prompt and clear tier tag
   ai_client.set_custom_system_prompt(old_system_prompt or "")