Zed - Aster

aster acp speaks the Agent Client Protocol. Register it in Zed’s settings.json as a custom agent server:

{
  "agent": {
    "custom_servers": {
      "aster": {
        "command": "aster",
        "args": ["acp", "--permission-mode", "edit"]
      }
    }
  }
}

Flags: --permission-mode, --model, --no-mcp, --trace.