// Copyright (c) Microsoft. All rights reserved. // This sample shows how to create and use an AI agent with Google Gemini using Google.GenAI; using Microsoft.Agents.AI; using Microsoft.Extensions.AI; using Mscc.GenerativeAI.Microsoft; const string JokerInstructions = "You are good at telling jokes."; const string JokerName = "JokerAgent"; string apiKey = Environment.GetEnvironmentVariable("GOOGLE_GENAI_API_KEY") ?? throw new InvalidOperationException("Please set the GOOGLE_GENAI_API_KEY environment variable."); string model = Environment.GetEnvironmentVariable("GOOGLE_GENAI_MODEL") ?? "gemini-2.5-flash"; // Using a Google GenAI IChatClient implementation ChatClientAgent agentGenAI = new( new Client(vertexAI: false, apiKey: apiKey).AsIChatClient(model), name: JokerName, instructions: JokerInstructions); AgentResponse response = await agentGenAI.RunAsync("Tell me a joke about a pirate."); Console.WriteLine($"Google GenAI client based agent response:\n{response}"); // Using a community driven Mscc.GenerativeAI.Microsoft package ChatClientAgent agentCommunity = new( new GeminiChatClient(apiKey: apiKey, model: model), name: JokerName, instructions: JokerInstructions); response = await agentCommunity.RunAsync("Tell me a joke about a pirate."); Console.WriteLine($"Community client based agent response:\n{response}");