<p>In this tutorial, we build an advanced agentic AI system using the OpenAI API and a hidden terminal prompt for the API key. We design the agent as a small pipeline of specialized roles: planner, tool-using executor, and critic, so that we can separate strategy, action, and quality control. We also integrate structured tools (calculator, […]</p> <p>The post <a href="https://www.marktechpost.com/2026/05/18/how-to-build-an-advanced-agentic-ai-system-with-planning-tool-calling-memory-and-se