Building a Custom AI Chatbot for Your Class

A class chatbot can give students another way to ask questions about course logistics, concepts, or practice. Its quality depends on the materials and rules it can access. A prompt that says “answer only from these slides” is a useful boundary, but it does not guarantee that every answer is grounded in them. The bot may combine course content with general model knowledge, misquote a source, or respond confidently when it does not know. Define the intended role before building. Decide which questions it may answer, when it should ask for clarification, what kinds of homework help are allowed, and when to refer a student to the instructor. Provide only approved course materials and keep the knowledge set current. Test common, ambiguous, and unanswerable questions; include prompts that try to get it to reveal answers or write an assignment. Review actual conversations and revise instructions where the tool crosses the intended boundary. Protect student information. Questions may reveal grades, disability needs, financial problems, or personal struggles. Use only tools approved by the school or institution, and ask the privacy or IT office how conversations are stored, who can see them, and whether content is used for other purposes. Avoid collecting names unless necessary, require appropriate sign-in, and set access and retention controls. Tell students what the assistant can and cannot do before they use it. Keep the teacher visible. The bot should route grades, extensions, sensitive topics, and uncertain answers to a human. Provide an alternative for students who cannot or do not want to use the tool. Review response quality regularly, especially after course materials or model versions change. The aim is to reduce routine friction without replacing instruction or creating an unsupervised source of truth.