deepseek-harness/examples/acp-agent/tests/snapshots/cancel/input.json

{
  "steps": [
    { "op": "initialize" },
    { "op": "newSession" },
    { "op": "promptAndCancel", "text": "Start a long task; this turn will be cancelled mid-stream." },
    { "op": "waitForTurnEnd" }
  ]
}