[
  {
    "stage_index": 1,
    "name": "Docker Container Mounting",
    "action_type": "setup",
    "description": "Attach to isolated Docker container with pre-built repo dependencies."
  },
  {
    "stage_index": 2,
    "name": "Problem Spec Ingestion",
    "action_type": "inspection",
    "description": "Parse issue description and repository context."
  },
  {
    "stage_index": 3,
    "name": "Single-Command Turn Loop",
    "action_type": "code_modification",
    "description": "Execute bash tool commands one turn at a time with strict output truncations."
  },
  {
    "stage_index": 4,
    "name": "Exit Code Check & Truncation Filter",
    "action_type": "output_validation",
    "description": "Validate command return code; truncate output exceeding max line limits."
  },
  {
    "stage_index": 5,
    "name": "Final Patch Output",
    "action_type": "stop_evaluation",
    "description": "Extract git patch using `git diff` and verify non-empty patch."
  }
]