diff --git a/src/main.py b/src/main.py
deleted file mode 100644
index 6b777ec..0000000
--- a/src/main.py
+++ /dev/null
@@ -1,96 +0,0 @@
-"""
-LangGraph code review agent with reflection on four criteria.
-"""
-
-from typing import TypedDict, Dict
-import os
-
-# State definition
-class CodeReviewState(TypedDict):
-    code: str
-    draft_review: str
-    criteria_scores: Dict[str, int]
-    weakest_criterion: str
-    verdict: str  # "ok" | "needs_revision"
-    round: int
-    max_rounds: int
-
-# Dummy LLM functions (replace with real LLM calls)
-
-def draft_review(code: str) -> str:
-    return f"Review of code:\n- Function looks fine.\n- Consider adding type hints."
-
-def reflect(review: str, code: str) -> Dict[str, int]:
-    # Simple heuristic scores
-    scores = {
-        "pep8": 7,
-        "type_hints": 5,
-        "edge_cases": 6,
-        "naming": 8,
-    }
-    weakest = min(scores, key=scores.get)
-    verdict = "needs_revision" if scores[weakest] < 7 else "ok"
-    return {**scores, "weakest_criterion": weakest, "verdict": verdict}
-
-def rewrite(review: str, criterion: str) -> str:
-    return review + f"\n- Improve {criterion} section."
-
-# Graph logic
-from langgraph.graph import StateGraph
-
-def build_graph() -> StateGraph[CodeReviewState]:
-    graph = StateGraph(CodeReviewState)
-
-    def start_node(state: CodeReviewState):
-        state["draft_review"] = draft_review(state["code"])
-        return state
-
-    def reflect_node(state: CodeReviewState):
-        scores = reflect(state["draft_review"], state["code"])
-        for k, v in scores.items():
-            if k in ["pep8", "type_hints", "edge_cases", "naming"]:
-                state["criteria_scores"][k] = v
-        state["weakest_criterion"] = scores["weakest_criterion"]
-        state["verdict"] = scores["verdict"]
-        return state
-
-    def rewrite_node(state: CodeReviewState):
-        state["draft_review"] = rewrite(state["draft_review"], state["weakest_criterion"])
-        state["round"] += 1
-        return state
-
-    graph.add_node("start", start_node)
-    graph.add_node("reflect", reflect_node)
-    graph.add_node("rewrite", rewrite_node)
-
-    graph.set_entry_point("start")
-    graph.add_edge("start", "reflect")
-    graph.add_conditional_edges(
-        "reflect",
-        lambda state: "end" if state["verdict"] == "ok" else "rewrite",
-    )
-    graph.add_edge("rewrite", "reflect")
-
-    # End condition based on max_rounds
-    def end_condition(state):
-        return state["round"] >= state["max_rounds"] or state["verdict"] == "ok"
-
-    graph.set_finish_condition(end_condition)
-
-    return graph
-
-if __name__ == "__main__":
-    code_example = "def sort_numbers(arr):\n    return sorted(arr)"
-    initial_state: CodeReviewState = {
-        "code": code_example,
-        "draft_review": "",
-        "criteria_scores": {},
-        "weakest_criterion": "",
-        "verdict": "",
-        "round": 0,
-        "max_rounds": 2,
-    }
-    graph = build_graph()
-    result = graph.invoke(initial_state)
-    print("Final draft review:\n", result["draft_review"])
-    print("Scores:", result["criteria_scores"])