OpenAI Agents SDK: A Practical Guide to Building Multi-Agent Systems in 2025 How to move beyond single-prompt chatbots and create AI workflows that plan, collaborate, and get things done — with working code you can run today. Your chatbot just forgot what you asked it thirty seconds ago. You're three prompts deep into what should be a simple task — "research these companies, compare their pricing, and draft an email to the best one" — and you're manually copy-pasting context between messages like it's 2023. The AI is smart enough to write poetry in iambic pentameter, but somehow can't remember step one by the time you reach step three. This is the wall every developer hits eventually. Single prompts are incredible for isolated tasks, but the moment you need AI to plan , remember , and coordinate — to actually work like a capable assistant rather than a brilliant amnesiac — the cracks show fast.…