Create README.md

README.md

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+---
+title: GAIA LangGraph Agent
+emoji: 🤖
+colorFrom: blue
+colorTo: green
+sdk: gradio
+sdk_version: "4.0.0"
+app_file: main.py
+pinned: false
+---
+
+# GAIA Benchmark Agent with LangGraph
+
+This project implements an agent using the LangGraph framework to solve the GAIA benchmark tasks provided by the Hugging Face Agents Course (Unit 4).
+
+✅ Uses LangChain + LangGraph  
+✅ Handles 20 benchmark questions  
+✅ Submits answers for scoring via Hugging Face leaderboard
+
+## How to run
+
+1. Clone this repo and push it as a Hugging Face Space (public).
+2. Install the dependencies.
+3. Launch the Space and log in to Hugging Face.
+4. Click "Run Evaluation & Submit All Answers" to evaluate your agent.
+
+## Project files
+
+- `main.py` — Gradio app runner
+- `graph_builder.py` — Builds the LangGraph pipeline
+- `llm_node.py` — Defines LLM node logic
+- `formatter_node.py` — Cleans up answers for exact-match submission
+- `api_client.py` — Wraps GAIA API interactions
+
+Good luck!