langgraph-coder/
│
├── deploy.py # (NEW) Script to push the agent to Vertex AI
├── requirements.txt # (UPDATED)
├── main.py # Compiles the graph and exposes the agent
│
└── src/
├── __init__.py
├── state.py
├── schemas.py
├── llm.py # (UPDATED) Initializes Gemini Flash
│
└── nodes/
├── __init__.py
├── coder.py # (UPDATED) Injects system prompts natively
├── tester.py
└── executor.py