[
  { "type": "turn/start", "seq": 1, "time": 1721270000000, "data": { "turn": 0, "trigger": { "kind": "message" } } },
  { "type": "user/message", "seq": 2, "time": 1721270000010, "surfaceOp": "append", "data": { "content": [{ "type": "text", "text": "Delegate the SurfaceEventType audit to a subagent, then compact, then verify." }] } },
  { "type": "step/start", "seq": 3, "time": 1721270000100, "data": { "turn": 0, "step": 0 } },
  { "type": "assistant/message", "seq": 4, "time": 1721270000700, "surfaceOp": "append", "data": { "turn": 0, "step": 0, "content": [{ "type": "text", "text": "Delegating to the audit subagent." }], "usage": { "inputTokens": 320, "outputTokens": 24 } } },
  { "type": "step/end", "seq": 5, "time": 1721270000710, "data": { "turn": 0, "step": 0 } },

  { "type": "step/start", "seq": 6, "time": 1721270000800, "data": { "turn": 0, "step": 1 } },
  { "type": "subagent/started", "seq": 7, "time": 1721270000900, "data": { "turn": 0, "step": 1, "childSessionId": "sub-audit-1" } },
  { "type": "tool/call", "seq": 8, "time": 1721270001000, "data": { "turn": 0, "step": 1, "callId": "call_delegate_1", "name": "SubagentDelegate", "arguments": "{\"childSessionId\":\"sub-audit-1\",\"prompt\":\"audit SurfaceEventType\"}" } },
  { "type": "tool/result", "seq": 9, "time": 1721270002500, "surfaceOp": "append", "data": { "turn": 0, "step": 1, "callId": "call_delegate_1", "content": [{ "type": "text", "text": "3 references found" }], "isError": false, "meta": { "card": "generic" } } },
  { "type": "step/end", "seq": 10, "time": 1721270002510, "data": { "turn": 0, "step": 1 } },

  { "type": "step/start", "seq": 11, "time": 1721270002600, "data": { "turn": 0, "step": 2 } },
  { "type": "compact/summary", "seq": 12, "time": 1721270002700, "data": { "turn": 0, "step": 2, "summary": "Prior tool loop condensed", "before": 8, "after": 3 } },
  { "type": "assistant/message", "seq": 13, "time": 1721270003000, "surfaceOp": "append", "data": { "turn": 0, "step": 2, "content": [{ "type": "text", "text": "Context compacted." }], "usage": { "inputTokens": 640, "outputTokens": 18 } } },
  { "type": "step/end", "seq": 14, "time": 1721270003010, "data": { "turn": 0, "step": 2 } },

  { "type": "step/start", "seq": 15, "time": 1721270003100, "data": { "turn": 0, "step": 3 } },
  { "type": "tool/call", "seq": 16, "time": 1721270003200, "data": { "turn": 0, "step": 3, "callId": "call_verify_1", "name": "Bash", "arguments": "{\"command\":\"pnpm test types.test.ts\"}" } },
  { "type": "tool/result", "seq": 17, "time": 1721270003800, "surfaceOp": "append", "data": { "turn": 0, "step": 3, "callId": "call_verify_1", "content": [{ "type": "text", "text": "PASS  types.test.ts (7/7)" }], "isError": false, "meta": { "card": "terminal" } } },
  { "type": "step/end", "seq": 18, "time": 1721270003810, "data": { "turn": 0, "step": 3 } },

  { "type": "step/start", "seq": 19, "time": 1721270003900, "data": { "turn": 0, "step": 4 } },
  { "type": "assistant/message", "seq": 20, "time": 1721270004500, "surfaceOp": "append", "data": { "turn": 0, "step": 4, "content": [{ "type": "text", "text": "Audit complete: 3 references, tests green." }], "usage": { "inputTokens": 940, "outputTokens": 20 } } },
  { "type": "step/end", "seq": 21, "time": 1721270004510, "data": { "turn": 0, "step": 4 } },

  { "type": "turn/end", "seq": 22, "time": 1721270004520, "data": { "turn": 0, "reason": { "kind": "completed" } } }
]