The Agent Loop: How 20 Lines of Swift Turn an API Client into a Coding Agent

📰 Dev.to · Ivan Magda

Turn an API client into a coding agent with 20 lines of Swift code using the Agent Loop mechanism

intermediate Published 30 Mar 2026
Action Steps
  1. Define the exit condition for the agent loop
  2. Choose a tool to integrate with the API client
  3. Initialize a message array to store and process data
  4. Implement the Agent Loop mechanism in a single method
  5. Test and refine the autonomous coding agent
  6. Integrate the agent with other development tools and workflows
Who Needs to Know This

Developers and software engineers can benefit from this technique to create autonomous coding agents, improving their workflow and productivity

Key Insight

💡 The Agent Loop mechanism can be implemented with a simple method, enabling autonomous coding agents

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🚀 Turn API clients into coding agents with 20 lines of Swift! #AI #CodingAgents

Key Takeaways

Turn an API client into a coding agent with 20 lines of Swift code using the Agent Loop mechanism

Full Article

One exit condition, one tool, and a growing message array. The entire mechanism that makes a coding agent autonomous fits in a single method.
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