{
  "name": "mcp_send_input",
  "steps": [
    {
      "type": "mcp_call",
      "method": "spawn_process",
      "params": {
        "kind": "command",
        "argv": ["sh", "-lc", "read line; echo got:$line; sleep 5"],
        "name": "reader"
      },
      "save_as": "proc"
    },
    {
      "type": "mcp_call",
      "method": "send_input",
      "params": {
        "process_id": "{{proc.process_id}}",
        "kind": "text",
        "text": "hello",
        "submit": true,
        "wait_ms": 250,
        "tail_mode": "grid"
      },
      "save_as": "input"
    },
    { "type": "assert_saved", "from": "input", "path": "tail.content", "contains": "got:hello" },
    { "type": "wait_text", "contains": "got:hello", "timeout_ms": 5000 }
  ]
}