add coder node structure and update graph

src/multi_agent_sdlc/graph.py

@@ -1,17 +1,20 @@
 from langgraph.graph import END, START, StateGraph
 from .config import create_llm
-from .nodes import create_planner_node
+from .nodes import create_planner_node, create_coder_node
 from .state import DevState
 
 
 def build_graph():
     llm = create_llm()
     planner_node = create_planner_node(llm)
+    coder_node = create_coder_node(llm)
 
     builder = StateGraph(DevState)
     builder.add_node("plan", planner_node)
+    builder.add_node("code", coder_node)
 
     builder.add_edge(START, "plan")
-    builder.add_edge("plan", END)
+    builder.add_edge("plan", "code")
+    builder.add_edge("code", END)
 
     return builder.compile()

src/multi_agent_sdlc/main.py

@@ -8,6 +8,7 @@ def run() -> None:
     initial_state: DevState = {
         "request": "Build a calculator app, all end user interactions happens via the terminal.",
         "plan": None,
+        "project_directory": "",
     }
 
     result = graph.invoke(initial_state)

src/multi_agent_sdlc/models.py

@@ -33,9 +33,6 @@ class Task(BaseModel):
 
 
 class DevelopmentPlan(BaseModel):
-    title: str = Field(
-        description="Short title of the project, only three words at most"
-    )
     project_id: str = Field(
         description=(
             "Unique lowercase kebab-case identifier used as the project "

src/multi_agent_sdlc/nodes.py

@@ -49,6 +49,20 @@ def create_planner_node(llm: BaseChatModel):
         return {
             "request": user_request,
             "plan": plan,
+            "project_directory": str(project_directory),
         }
 
     return planner_node
+
+
+def create_coder_node(llm: BaseChatModel):
+    structured_llm = llm.with_structured_output(DevelopmentPlan).with_retry(
+        retry_if_exception_type=(Exception,),
+        stop_after_attempt=3,
+    )
+
+    def coder_node(state: DevState) -> DevState:
+        user_request = state["request"]
+        return {}
+
+    return coder_node

src/multi_agent_sdlc/state.py

@@ -1,7 +1,9 @@
+from typing import NotRequired
 from typing import Optional, TypedDict
 from .models import DevelopmentPlan
 
 
 class DevState(TypedDict):
-    request: str  # original user request
+    request: str
     plan: Optional[DevelopmentPlan]
+    project_directory: NotRequired[str]