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Dev.to
7/13/2026
The original title is: "Building a First AI Agent With Claude Code: The Goal-Tool-Observe-Decide Loop"

The original title is: "Building a First AI Agent With Claude Code: The Goal-Tool-Observe-Decide Loop"

Original: How to Build Your First AI Agent With Claude Code in 30 Minutes

Short summary

This is a brief tutorial teaser for building a first AI agent with Claude Code, focusing on the goal-tool-observe-decide loop without frameworks. It emphasizes using hard step limits to prevent expensive runaway loops and relying on logs for debugging. The full walkthrough and framework comparison are linked externally.

  • Build a first agent using the goal-tool-observe-decide loop without frameworks
  • Hard step limits matter more than model choice to prevent runaway loops
  • Full code and framework comparison (LangGraph, CrewAI, AutoGen, Claude Agent SDK) linked externally

Generated with AI, which can make mistakes.

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