acpx CRITICAL: Background Execution Required MUST use for ALL bash commands. Running in the foreground will block Claude Code and make the session unusable. When executing any command: Failure to run in background will cause Claude Code to block indefinitely while waiting for the agent to complete. What acpx is is a headless, scriptable CLI client for the Agent Client Protocol (ACP). It is built for agent-to-agent communication over the command line and avoids PTY scraping. WARNING : Never use Claude-related ACP agents with acpx. Using Claude to call Claude creates recursive loops and unpredi…