README.md

---
title: Tool-Calling AI Agent
emoji: 🛠️
colorFrom: indigo
colorTo: blue
sdk: gradio
sdk_version: 5.9.0
app_file: app.py
pinned: false
---

# 🛠️ Tool-Calling AI Agent

A LangGraph-inspired Tool-Calling AI Agent with 3 tools:

- 🔢 **Calculator** — Safe math expression evaluation
- 🌐 **Web Search** — Knowledge base lookup
- 📁 **File Reader** — Read text files

Each response shows the full reasoning trace: **Thought → Tool Call → Tool Result → Final Answer**

## Usage

Just type your question! Examples:
- `What is 2 + 2?`
- `Calculate the area of a circle with radius 7`
- `Tell me about LangGraph`
- `Read app.py`

## Architecture

```
User Query → Intent Detection → Tool Selection → Execution → Response
     │            │                   │              │           │
     └──── Thought ──── Tool Call ────┴── Tool Result ─┴─ Final ──┘
```

Built with Python and Gradio. No external LLM API needed — the agent uses deterministic intent routing.