Semi-Autonomous AI Agents are a middle ground between fully autonomous AI agents and human decision making. They leverage the power of Large Language Models (LLMs) to offer suggestions while still allowing users to maintain control over their actions. This approach is particularly useful in handling complex asynchronous workflows, where decisions need to be made at different stages of a process. Inngest, a platform for building complex async workflows within Next.js applications, shines in managing such workflows by providing a clear SDK and executing long-running serverless processes using existing hosting infrastructure. By combining Inngest with other tools like PartyKit, developers can create chat UIs that interact with external APIs and enable users to perform actions on suggested issues or tasks.