// As of 0.80.0, the client advertises the capabilities its handlers serve: registering the two
// file handlers below advertises fs.readTextFile and fs.writeTextFile in the initialize request,
// and no terminal, since no terminal handlers are registered (Module 17 sets capabilities
// explicitly with clientCapabilities(..) instead).
AcpSyncClient client = AcpClient.sync(transport)
    .readTextFileHandler(req -> {
        try {
            return new AcpSchema.ReadTextFileResponse(Files.readString(Path.of(req.path())));
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    })
    .writeTextFileHandler(req -> {
        try {
            Files.writeString(Path.of(req.path()), req.content());
            return new AcpSchema.WriteTextFileResponse();
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    })
    .build();

var initResponse = client.initialize();

System.out.println("Protocol version: " + initResponse.protocolVersion());
System.out.println("Agent capabilities: " + initResponse.agentCapabilities());
System.out.println("Existing sessions: " + initResponse.sessionIds().size());
// Output: Protocol version: 1
//         Agent capabilities: AgentCapabilities[...]
//         Existing sessions: 0

./mvnw exec:java -pl module-02-protocol-basics