vertex-ai-support-agent

The Vertex AI Support Agent is an agentic AI customer support system built with Python, Google Cloud Vertex AI, Gemini, and FastAPI. It can search a support knowledge base, decide whether an issue can be resolved, and create a support ticket when escalation is required. The agent first attempts to resolve the user's issue using the knowledge base. If a relevant solution is available, it returns the answer directly. If the issue cannot be resolved from the available knowledge, the agent can use a support tool to escalate the request and generate a unique ticket ID. The application exposes an AI support agent through a REST API. When a customer submits a message, FastAPI receives the request through the /chat endpoint, the request is sent to Gemini running through Vertex AI, and Gemini determines which available tool should be used. The agent can search the support knowledge base; if a solution exists, the agent responds with the appropriate instructions. If the issue cannot be resolved, the agent can create a support ticket. The final response is returned to the client as JSON. This demonstrates an agentic workflow in which the language model does more than generate text: it can select and execute tools based on the customer's request.