Delete agent.py

agent.py

@@ -1,89 +0,0 @@
-from typing import List
-from langgraph.graph import StateGraph, MessagesState, END
-from langgraph.prebuilt import ToolNode, tools_condition
-
-from langchain_core.messages import SystemMessage, HumanMessage
-from langchain_core.tools import tool
-
-from duckduckgo_search import DDGS
-
-from langchain_google_genai import ChatGoogleGenerativeAI
-from langchain_groq import ChatGroq
-
-import os
-
-# ---------------------------------------------------------
-# TOOLS
-# ---------------------------------------------------------
-
-@tool
-def web_search(query: str) -> str:
-    """Search the web using DuckDuckGo."""
-    with DDGS() as ddgs:
-        results = list(ddgs.text(query, max_results=3))
-    if not results:
-        return "No results found."
-    return "\n\n".join(r["body"] for r in results)
-
-
-@tool
-def calculator(expression: str) -> str:
-    """Evaluate a math expression."""
-    try:
-        return str(eval(expression))
-    except Exception:
-        return "Error evaluating expression."
-
-
-TOOLS = [web_search, calculator]
-
-# ---------------------------------------------------------
-# BUILD GRAPH
-# ---------------------------------------------------------
-
-def build_graph(provider: str = "google"):
-    """
-    Build and return the LangGraph agent.
-    Supported providers: 'google', 'groq'
-    """
-
-    # -------------------------------
-    # LLM SELECTION
-    # -------------------------------
-    llm = ChatHuggingFace(
-        llm=HuggingFaceEndpoint(
-            repo_id="HuggingFaceH4/zephyr-7b-beta",
-            temperature=0,
-            max_new_tokens=512,
-        )
-    )
-
-    # -------------------------------
-    # ASSISTANT NODE
-    # -------------------------------
-    def assistant(state: MessagesState):
-        return {
-            "messages": [
-                llm_with_tools.invoke(state["messages"])
-            ]
-        }
-
-    # -------------------------------
-    # GRAPH
-    # -------------------------------
-    builder = StateGraph(MessagesState)
-
-    builder.add_node("assistant", assistant)
-    builder.add_node("tools", ToolNode(TOOLS))
-
-    builder.set_entry_point("assistant")
-
-    builder.add_conditional_edges(
-        "assistant",
-        tools_condition
-    )
-
-    builder.add_edge("tools", "assistant")
-    builder.add_edge("assistant", END)
-
-    return builder.compile()