ACP or PTY? Results, or control?

ACPClassic mode. Any coding CLI that speaks the Agent Communication Protocol talks to OpenAB, which brokers it to Discord, Slack, Telegram, Feishu and LINE. You get the result in your team channel.

PTYNew mode. The agent's terminal attaches to OpenAB Connect on your Mac. Install, configure, even talk to it by voice, and watch every step. The cost: it can be a lot of information.

PTY ecosystemOpenAB PTY is a runtime: OpenAB Connect (Mac), OpenAB Remote (iOS) and instance MCP as its hands. Only PTY mode has this.