When you see a "terminated" message, it usually means that a process or session was stopped before it could complete its task.
In our recent attempts to start the tavily-search using an ACP session, I encountered an error message that said: "ACP runtime backend is not configured. Install and enable the acpx runtime plugin."
This specific error means that the necessary software component (acpx runtime plugin) needed to run an ACP session (which is what gives the "code agent" exec permissions) isn't set up on the system. Because of this, the ACP session couldn't even start correctly, leading to it being "terminated" almost immediately.
So, in this case, "terminated" indicates that the tavily-search command couldn't be executed because the environment wasn't ready for it. My apologies for these technical roadblocks.