# Building AI Agents with LangGraph

- **URL:** https://prasanjith.com/blog/building-ai-agents-with-langgraph
- **Author:** Prasanjith
- **Published:** 2026-07-01
- **Updated:** 2026-10-18
- **Reading time:** 1 min
- **Tags:** LangGraph

*How I architect stateful, multi-step AI agents using LangGraph — from graph design to production deployment.*

Agentic systems need **state**, not just prompts. LangGraph models your agent as a directed graph of nodes.

## Why graphs beat chains

Linear chains break down when you need loops, retries, and conditional branching.

```python
from langgraph.graph import StateGraph
graph = StateGraph(AgentState)
```

> A good agent is a good state machine.
>
> — Prasanjith

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Source: https://prasanjith.com/blog/building-ai-agents-with-langgraph · Prasanjith Chanaka (https://prasanjith.com)
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