[
  {
    "_mock": true,
    "_mockReason": "Sample trace fixture concatenated for zero-key demo (task #192). Composed from five sealed 2.x fixtures — 2.1 turn / 2.2 reasoning / 2.3 tool-call-delta / 2.5 compact / 2.6 subagent — with seqs rebased so the log stays monotonic across the merged stream. Every card family from the #162 recs (turn container, reasoning fold, partial-JSON row, compact Diff, subagent inline, per-turn footer) should render from this one file, so a first-time user can Explore Sample Trace and see the full grammar without any DeepSeek key."
  },
  {
    "type": "user/message",
    "time": 1000,
    "seq": 1,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Add a comment header to src/lib/main.ts explaining its role, then verify the file still parses."
        }
      ]
    }
  },
  {
    "type": "step/start",
    "time": 1050,
    "seq": 2,
    "data": {
      "turn": 5,
      "step": 0
    }
  },
  {
    "type": "request/header",
    "time": 1100,
    "seq": 3,
    "data": {
      "header": {
        "model": "deepseek-chat",
        "system": "You are DeepSeek Harness — a research coding agent.",
        "tools": [
          {
            "name": "read",
            "description": "Read a file."
          },
          {
            "name": "edit",
            "description": "Edit a file by string replacement."
          },
          {
            "name": "bash",
            "description": "Run a shell command."
          }
        ],
        "config": {
          "temperature": 0.3,
          "maxTokens": 4096
        }
      },
      "reason": "step-start"
    }
  },
  {
    "type": "assistant/message",
    "time": 1350,
    "seq": 4,
    "data": {
      "content": [
        {
          "type": "reasoning",
          "text": "I should first inspect the current top of the file so my header sits in the right position, then edit, then check parsing with a syntax-only run."
        },
        {
          "type": "text",
          "text": "I'll read the file, add the header, and verify it parses."
        }
      ],
      "usage": {
        "inputTokens": 620,
        "outputTokens": 84,
        "reasoningTokens": 41
      }
    }
  },
  {
    "type": "tool/call",
    "time": 1400,
    "seq": 5,
    "data": {
      "callId": "call_read_5",
      "name": "read",
      "arguments": "{\"path\":\"src/lib/main.ts\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 1470,
    "seq": 6,
    "data": {
      "callId": "call_read_5",
      "content": [
        {
          "type": "text",
          "text": "import { App } from './app'\nnew App().run()\n"
        }
      ],
      "isError": false,
      "meta": {
        "card": "generic",
        "durationMs": 62
      }
    }
  },
  {
    "type": "tool/call",
    "time": 1510,
    "seq": 7,
    "data": {
      "callId": "call_edit_5",
      "name": "edit",
      "arguments": "{\"path\":\"src/lib/main.ts\",\"old\":\"import { App } from './app'\",\"new\":\"// main.ts — entry point: boots the App composition root.\\nimport { App } from './app'\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 1560,
    "seq": 8,
    "data": {
      "callId": "call_edit_5",
      "content": [
        {
          "type": "text",
          "text": "edit applied (1 replacement)"
        }
      ],
      "isError": false,
      "meta": {
        "card": "diff",
        "durationMs": 44
      }
    }
  },
  {
    "type": "assistant/message",
    "time": 1670,
    "seq": 9,
    "data": {
      "content": [
        {
          "type": "reasoning",
          "text": "Now I need a cheap parse check that does not execute the boot chain — node --check on the file is enough."
        },
        {
          "type": "text",
          "text": "Header added. Verifying parse now."
        }
      ],
      "usage": {
        "inputTokens": 700,
        "outputTokens": 60,
        "reasoningTokens": 28
      }
    }
  },
  {
    "type": "tool/call",
    "time": 1690,
    "seq": 10,
    "data": {
      "callId": "call_bash_5",
      "name": "bash",
      "arguments": "{\"cmd\":\"node --check src/lib/main.ts\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 1830,
    "seq": 11,
    "data": {
      "callId": "call_bash_5",
      "content": [
        {
          "type": "text",
          "text": "(no output; exit 0)"
        }
      ],
      "isError": false,
      "meta": {
        "card": "terminal",
        "durationMs": 138
      }
    }
  },
  {
    "type": "assistant/message",
    "time": 1890,
    "seq": 12,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Done. Header added, file still parses cleanly."
        }
      ],
      "usage": {
        "inputTokens": 780,
        "outputTokens": 34,
        "cacheReadTokens": 512,
        "reasoningTokens": 12
      }
    }
  },
  {
    "type": "step/end",
    "time": 1950,
    "seq": 13,
    "data": {
      "turn": 5,
      "step": 0
    }
  },
  {
    "type": "turn/end",
    "time": 2000,
    "seq": 14,
    "data": {
      "turn": 5,
      "reason": {
        "kind": "stop"
      },
      "usage": {
        "inputTokens": 780,
        "outputTokens": 178,
        "cacheReadTokens": 512,
        "reasoningTokens": 81
      }
    }
  },
  {
    "type": "user/message",
    "time": 3000,
    "seq": 15,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Check whether packages/core/session/src/types.ts imports from dsh-brand, and if not, add the import."
        }
      ]
    }
  },
  {
    "type": "step/start",
    "time": 3050,
    "seq": 16,
    "data": {
      "turn": 6,
      "step": 0
    }
  },
  {
    "type": "request/header",
    "time": 3100,
    "seq": 17,
    "data": {
      "header": {
        "model": "deepseek-chat",
        "system": "You are a research coding agent.",
        "tools": [
          {
            "name": "read",
            "description": "Read a file."
          },
          {
            "name": "edit",
            "description": "Edit a file by string replacement."
          }
        ],
        "config": {
          "temperature": 0.2,
          "maxTokens": 4096
        }
      },
      "reason": "step-start"
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3150,
    "seq": 18,
    "data": {
      "chunk": {
        "type": "reasoning-delta",
        "text": "The user wants me to inspect the imports at the top of the file, so"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3160,
    "seq": 19,
    "data": {
      "chunk": {
        "type": "reasoning-delta",
        "text": " a read call is the cheapest first move. If the import is already present"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3170,
    "seq": 20,
    "data": {
      "chunk": {
        "type": "reasoning-delta",
        "text": " I can stop after one tool call, otherwise I edit."
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3190,
    "seq": 21,
    "data": {
      "chunk": {
        "type": "text-delta",
        "text": "Reading the file first to check the current imports."
      }
    }
  },
  {
    "type": "tool/call",
    "time": 3230,
    "seq": 22,
    "data": {
      "callId": "call_read_6",
      "name": "read",
      "arguments": "{\"path\":\"packages/core/session/src/types.ts\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 3310,
    "seq": 23,
    "data": {
      "callId": "call_read_6",
      "content": [
        {
          "type": "text",
          "text": "import type { SessionEvent } from './events'\nimport type { Branded } from '@deepseek-ai/dsh-brand'\n\nexport type SessionId = Branded<'SessionId', string>\n"
        }
      ],
      "isError": false,
      "meta": {
        "card": "generic",
        "durationMs": 74
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3370,
    "seq": 24,
    "data": {
      "chunk": {
        "type": "reasoning-delta",
        "text": "Good — the Branded import is already there on line 2, so the file is already"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3380,
    "seq": 25,
    "data": {
      "chunk": {
        "type": "reasoning-delta",
        "text": " correct. I don't need to edit; I should just report what I found."
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 3400,
    "seq": 26,
    "data": {
      "chunk": {
        "type": "text-delta",
        "text": "The import is already present at line 2 — no edit needed."
      }
    }
  },
  {
    "type": "assistant/message",
    "time": 3450,
    "seq": 27,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Reading the file first to check the current imports."
        },
        {
          "type": "reasoning",
          "text": "The user wants me to inspect the imports at the top of the file, so a read call is the cheapest first move. If the import is already present I can stop after one tool call, otherwise I edit."
        },
        {
          "type": "text",
          "text": "The import is already present at line 2 — no edit needed."
        },
        {
          "type": "reasoning",
          "text": "Good — the Branded import is already there on line 2, so the file is already correct. I don't need to edit; I should just report what I found."
        }
      ],
      "usage": {
        "inputTokens": 520,
        "outputTokens": 118,
        "cacheReadTokens": 320,
        "reasoningTokens": 62
      }
    }
  },
  {
    "type": "step/end",
    "time": 3500,
    "seq": 28,
    "data": {
      "turn": 6,
      "step": 0
    }
  },
  {
    "type": "turn/end",
    "time": 3550,
    "seq": 29,
    "data": {
      "turn": 6,
      "reason": {
        "kind": "stop"
      },
      "usage": {
        "inputTokens": 520,
        "outputTokens": 118,
        "cacheReadTokens": 320,
        "reasoningTokens": 62
      }
    }
  },
  {
    "type": "user/message",
    "time": 4550,
    "seq": 30,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Create src/lib/foo.ts exporting a bar() function, then run it via node -e to confirm the export works."
        }
      ]
    }
  },
  {
    "type": "step/start",
    "time": 4600,
    "seq": 31,
    "data": {
      "turn": 7,
      "step": 0
    }
  },
  {
    "type": "request/header",
    "time": 4650,
    "seq": 32,
    "data": {
      "header": {
        "model": "deepseek-chat",
        "tools": [
          {
            "name": "write_file",
            "description": "Write a file to disk with the given content."
          },
          {
            "name": "run_bash",
            "description": "Run a shell command; returns stdout+stderr."
          }
        ]
      },
      "reason": "step-start"
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4710,
    "seq": 33,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "name": "write_file",
        "argumentsDelta": "{\"path\":\""
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4725,
    "seq": 34,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
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        "id": "call_write_1",
        "argumentsDelta": "src/lib/f"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4740,
    "seq": 35,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "argumentsDelta": "oo.ts"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4755,
    "seq": 36,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "argumentsDelta": "\",\"content\":\"expor"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4770,
    "seq": 37,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "argumentsDelta": "t function bar(){"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4785,
    "seq": 38,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "argumentsDelta": " return 'bar' "
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4800,
    "seq": 39,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 0,
        "id": "call_write_1",
        "argumentsDelta": "}\"}"
      }
    }
  },
  {
    "type": "tool/call",
    "time": 4830,
    "seq": 40,
    "data": {
      "callId": "call_write_1",
      "name": "write_file",
      "arguments": "{\"path\":\"src/lib/foo.ts\",\"content\":\"export function bar(){ return 'bar' }\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 4890,
    "seq": 41,
    "data": {
      "callId": "call_write_1",
      "content": [
        {
          "type": "text",
          "text": "wrote 42 bytes"
        }
      ],
      "isError": false,
      "meta": {
        "card": "generic",
        "durationMs": 52
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4920,
    "seq": 42,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 1,
        "id": "call_bash_1",
        "name": "run_bash",
        "argumentsDelta": "{\"command\":\"node -"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4935,
    "seq": 43,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 1,
        "id": "call_bash_1",
        "argumentsDelta": "e \\\"console.log(re"
      }
    }
  },
  {
    "type": "assistant/chunk",
    "time": 4950,
    "seq": 44,
    "data": {
      "chunk": {
        "type": "tool-call-delta",
        "index": 1,
        "id": "call_bash_1",
        "argumentsDelta": "quire('./src/lib/foo').bar())\\\"\"}"
      }
    }
  },
  {
    "type": "tool/call",
    "time": 4980,
    "seq": 45,
    "data": {
      "callId": "call_bash_1",
      "name": "run_bash",
      "arguments": "{\"command\":\"node -e \\\"console.log(require('./src/lib/foo').bar())\\\"\"}"
    }
  },
  {
    "type": "tool/result",
    "time": 5140,
    "seq": 46,
    "data": {
      "callId": "call_bash_1",
      "content": [
        {
          "type": "text",
          "text": "bar\n"
        }
      ],
      "isError": false,
      "meta": {
        "card": "terminal",
        "durationMs": 158
      }
    }
  },
  {
    "type": "assistant/message",
    "time": 5200,
    "seq": 47,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "foo.ts written; node round-trip prints \"bar\" — export works."
        }
      ],
      "usage": {
        "inputTokens": 380,
        "outputTokens": 42,
        "cacheReadTokens": 220
      }
    }
  },
  {
    "type": "step/end",
    "time": 5240,
    "seq": 48,
    "data": {
      "turn": 7,
      "step": 0
    }
  },
  {
    "type": "turn/end",
    "time": 5280,
    "seq": 49,
    "data": {
      "turn": 7,
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        "kind": "stop"
      },
      "usage": {
        "inputTokens": 380,
        "outputTokens": 42,
        "cacheReadTokens": 220
      }
    }
  },
  {
    "type": "assistant/message",
    "time": 6280,
    "seq": 50,
    "data": {
      "turn": 12,
      "step": 4,
      "content": [
        {
          "type": "text",
          "text": "Refactor complete — will summarise the session so far."
        }
      ],
      "usage": {
        "inputTokens": 4200,
        "outputTokens": 210
      }
    }
  },
  {
    "type": "compact/start",
    "time": 6330,
    "seq": 51,
    "data": {
      "reason": {
        "kind": "user"
      },
      "model": "deepseek-chat",
      "maxTokens": 800,
      "shadowedRange": {
        "start": 121,
        "end": 132
      },
      "trigger": {
        "kind": "user"
      }
    }
  },
  {
    "type": "compact/summary",
    "time": 6680,
    "seq": 52,
    "data": {
      "model": "deepseek-chat",
      "maxTokens": 800,
      "shadowedRange": {
        "start": 121,
        "end": 132
      },
      "shadowedSeqs": [
        121,
        122,
        123,
        124,
        125,
        126,
        127,
        128,
        129,
        130,
        131,
        132
      ],
      "shadowedTokenCount": 3812,
      "summary": [
        {
          "type": "text",
          "text": "The session refactored src/lib/app.ts to split App into AppShell (thin) and AppCore (business logic), moved two utility functions to src/lib/util/*, and ran the unit suite (all 96 tests passed). Key decisions: (a) AppShell owns cli/env parsing only, (b) AppCore is constructor-injectable to make tests hermetic, (c) new util modules keep the previous public API by re-export. Follow-ups queued: rename AppShell.start → AppShell.run for symmetry with the interface, and cover the new AppCore.render path with an integration test."
        }
      ],
      "trigger": {
        "kind": "user"
      }
    }
  },
  {
    "type": "compact/end",
    "time": 6730,
    "seq": 53,
    "data": {
      "model": "deepseek-chat",
      "shadowedRange": {
        "start": 121,
        "end": 132
      }
    }
  },
  {
    "_shadowedPreview": [
      {
        "seq": 121,
        "type": "user/message",
        "gist": "Refactor App: split shell and core, keep public API."
      },
      {
        "seq": 122,
        "type": "assistant/message",
        "gist": "Plan: 1) read src/lib/app.ts 2) draft AppShell/AppCore 3) move utils."
      },
      {
        "seq": 123,
        "type": "tool/call",
        "gist": "read(path=src/lib/app.ts)"
      },
      {
        "seq": 124,
        "type": "tool/result",
        "gist": "app.ts 240 lines, 3 exported functions, mixed cli+business logic."
      },
      {
        "seq": 125,
        "type": "assistant/message",
        "gist": "Splitting App into AppShell (cli parsing) and AppCore (business)."
      },
      {
        "seq": 126,
        "type": "tool/call",
        "gist": "edit(path=src/lib/app.ts, old=..., new=...)"
      },
      {
        "seq": 127,
        "type": "tool/result",
        "gist": "edit applied (1 replacement); AppShell/AppCore extracted."
      },
      {
        "seq": 128,
        "type": "tool/call",
        "gist": "write_file(path=src/lib/util/parse-args.ts)"
      },
      {
        "seq": 129,
        "type": "tool/result",
        "gist": "wrote 88 bytes"
      },
      {
        "seq": 130,
        "type": "tool/call",
        "gist": "run_bash(command=pnpm test)"
      },
      {
        "seq": 131,
        "type": "tool/result",
        "gist": "96 passed / 0 failed; 1.2s"
      },
      {
        "seq": 132,
        "type": "assistant/message",
        "gist": "Refactor complete — will summarise the session so far."
      }
    ]
  },
  {
    "type": "user/message",
    "time": 7730,
    "seq": 954,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Have a subagent audit packages/core/session/src for unused exports and delete them, then report the count."
        }
      ]
    }
  },
  {
    "type": "step/start",
    "time": 7780,
    "seq": 955,
    "data": {
      "turn": 9,
      "step": 0
    }
  },
  {
    "type": "assistant/message",
    "time": 7880,
    "seq": 956,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Spawning a subagent to run the audit."
        }
      ],
      "usage": {
        "inputTokens": 420,
        "outputTokens": 12
      }
    }
  },
  {
    "type": "tool/call",
    "time": 7940,
    "seq": 957,
    "data": {
      "callId": "call_spawn_9",
      "name": "spawn_agent",
      "arguments": "{\"prompt\":\"Audit packages/core/session/src for unused exports, delete them, and return {removed: string[], count: number} as JSON.\",\"tools\":[\"read\",\"edit\",\"bash\"]}"
    }
  },
  {
    "_mock": true,
    "type": "_notification",
    "method": "subagent.started",
    "params": {
      "parentSessionId": "root-abc",
      "childSessionId": "sub-def",
      "parentCallId": "call_spawn_9"
    }
  },
  {
    "_sessionId": "sub-def",
    "type": "user/message",
    "time": 8000,
    "seq": 54,
    "data": {
      "content": [
        {
          "type": "text",
          "text": "Audit packages/core/session/src for unused exports, delete them, and return {removed: string[], count: number} as JSON."
        }
      ],
      "source": {
        "kind": "plugin",
        "plugin": "subagent-delegate"
      }
    }
  },
  {
    "_sessionId": "sub-def",
    "type": "assistant/message",
    "time": 8100,
    "seq": 55,
    "data": {
      "content": [
        {
          "type": "reasoning",
          "text": "I'll list the source files first, then walk each one with the export inspector."
        },
        {
          "type": "text",
          "text": "Listing source files."
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