// Check what MCP transports the agent supports
NegotiatedCapabilities agentCaps = client.getAgentCapabilities();
System.out.println("HTTP: " + agentCaps.supportsMcpHttp());
System.out.println("SSE: " + agentCaps.supportsMcpSse());

// Session with STDIO MCP server
var session1 = client.newSession(new NewSessionRequest(cwd, List.of(
    new McpServerStdio(
        "filesystem",
        "npx",
        List.of("-y", "@modelcontextprotocol/server-filesystem", "/tmp"),
        List.of())
)));

// Session with multiple server types
var session2 = client.newSession(new NewSessionRequest(cwd, List.of(
    new McpServerStdio("git", "npx",
        List.of("-y", "@modelcontextprotocol/server-git"), List.of()),
    new McpServerHttp("weather-api",
        "https://api.weather.example.com/mcp", List.of()),
    new McpServerSse("live-data",
        "https://stream.example.com/mcp/events", List.of())
)));

.initializeHandler(req -> {
    var mcpCaps = new McpCapabilities(true, true); // HTTP and SSE
    var agentCaps = new AgentCapabilities(
        true, mcpCaps, new PromptCapabilities());
    return InitializeResponse.ok(agentCaps);
})

.newSessionHandler(req -> {
    // MCP servers arrive with the session
    List<McpServer> servers = req.mcpServers();
    for (McpServer server : servers) {
        switch (server) {
            case McpServerStdio s ->
                System.out.println("STDIO: " + s.name() + " " + s.command());
            case McpServerHttp h ->
                System.out.println("HTTP: " + h.name() + " " + h.url());
            case McpServerSse s ->
                System.out.println("SSE: " + s.name() + " " + s.url());
            default -> {}
        }
    }
    return new NewSessionResponse(sessionId, null, null);
})

./mvnw package -pl module-19-mcp-servers -q
./mvnw exec:java -pl module-19-mcp-servers