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Dev.to
Dev.to
7/4/2026
The original title is: "Solon 4.0 ReActAgent: A Practical Guide to Building AI Agents That Think and Act"

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

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