Dev.to
7/4/2026

The original title is: "Solon 4.0 ReActAgent: A Practical Guide to Building AI Agents That Think and Act"
Original: Solon 4.0 ReActAgent: A Practical Guide to Building AI Agents That Think and Act
Short summary
Solon 4.0's ReActAgent implements a Thought → Action → Observation loop for AI reasoning and tool use. This tutorial covers building production agents with concrete code examples, from simple time-checking tools to customer support bots querying order databases. ReActAgent includes configuration, lifecycle hooks, and observability for production monitoring.
- •Implements ReActAgent pattern (Thought → Action → Observation) for AI reasoning and external tool integration
- •Production-ready code examples from basic tools to complex customer support and inventory automation agents
- •Built-in observability, retry logic, and lifecycle hooks for production deployments
Generated with AI, which can make mistakes.
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