{
  "steps": [
    {
      "op": "initialize"
    },
    {
      "op": "newSession"
    },
    {
      "op": "prompt",
      "text": "Run this advanced flow exactly once: define a host-only dynamic Cordis Package named Snapshot Marker; run and inspect snap-1/pkg-1 through run_code; delegate once to a direct spawn child; run one workflow that delegates to another spawn child; remove snap-1; then reply with exactly ADVANCED_ACP_OK."
    }
  ]
}