{
  "version": {
    "major": 1,
    "minor": 0,
    "patch": 0
  },
  "metadata": {
    "session_id": "ruchy-session-1756788584",
    "created_at": "2025-09-02T04:49:44.967082469+00:00",
    "ruchy_version": "1.30.1",
    "student_id": null,
    "assignment_id": null,
    "tags": [
      "interactive"
    ]
  },
  "environment": {
    "seed": 0,
    "feature_flags": [],
    "resource_limits": {
      "heap_mb": 100,
      "stack_kb": 8192,
      "cpu_ms": 5000
    }
  },
  "timeline": [
    {
      "id": 1,
      "timestamp_ns": 154310,
      "event": {
        "Input": {
          "text": "let name = \"Alice\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 2,
      "timestamp_ns": 212334,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Alice\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 3,
      "timestamp_ns": 219406,
      "event": {
        "Input": {
          "text": "let age = 30",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 4,
      "timestamp_ns": 229913,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"30\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 5,
      "timestamp_ns": 233936,
      "event": {
        "Input": {
          "text": "let pi = 3.14159",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 6,
      "timestamp_ns": 249721,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"3.14159\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 7,
      "timestamp_ns": 253258,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 8,
      "timestamp_ns": 254360,
      "event": {
        "Input": {
          "text": "name",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 9,
      "timestamp_ns": 263663,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Alice\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 10,
      "timestamp_ns": 267346,
      "event": {
        "Input": {
          "text": "age",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 11,
      "timestamp_ns": 273863,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"30\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 12,
      "timestamp_ns": 276315,
      "event": {
        "Input": {
          "text": "pi",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 13,
      "timestamp_ns": 281113,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"3.14159\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 14,
      "timestamp_ns": 283914,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 15,
      "timestamp_ns": 286002,
      "event": {
        "Input": {
          "text": "let greeting = \"Hello, \" + name",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 16,
      "timestamp_ns": 304300,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Hello, Alice\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 17,
      "timestamp_ns": 306538,
      "event": {
        "Input": {
          "text": "greeting",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 18,
      "timestamp_ns": 310804,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Hello, Alice\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 19,
      "timestamp_ns": 312252,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 20,
      "timestamp_ns": 312929,
      "event": {
        "Input": {
          "text": "let x = 10",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 21,
      "timestamp_ns": 318720,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"10\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 22,
      "timestamp_ns": 320310,
      "event": {
        "Input": {
          "text": "let y = 20",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 23,
      "timestamp_ns": 324155,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"20\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 24,
      "timestamp_ns": 325814,
      "event": {
        "Input": {
          "text": "let sum = x + y",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 25,
      "timestamp_ns": 332066,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"30\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 26,
      "timestamp_ns": 333613,
      "event": {
        "Input": {
          "text": "sum",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 27,
      "timestamp_ns": 337250,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"30\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 28,
      "timestamp_ns": 338508,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 29,
      "timestamp_ns": 339161,
      "event": {
        "Input": {
          "text": "\"Hello World\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 30,
      "timestamp_ns": 343608,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Hello World\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 31,
      "timestamp_ns": 345137,
      "event": {
        "Input": {
          "text": "'A'",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 32,
      "timestamp_ns": 354485,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"'A'\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 33,
      "timestamp_ns": 356588,
      "event": {
        "Input": {
          "text": "\"String with \\\"quotes\\\"\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 34,
      "timestamp_ns": 363256,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"String with \\\"quotes\\\"\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 35,
      "timestamp_ns": 364653,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 36,
      "timestamp_ns": 365878,
      "event": {
        "Input": {
          "text": "let multiline = \"Line 1\\nLine 2\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 37,
      "timestamp_ns": 372431,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Line 1\\nLine 2\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 38,
      "timestamp_ns": 375356,
      "event": {
        "Input": {
          "text": "multiline",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 39,
      "timestamp_ns": 380842,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"Line 1\\nLine 2\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 40,
      "timestamp_ns": 382799,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 41,
      "timestamp_ns": 383504,
      "event": {
        "Input": {
          "text": "let empty = \"\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 42,
      "timestamp_ns": 389556,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 43,
      "timestamp_ns": 391099,
      "event": {
        "Input": {
          "text": "empty",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 44,
      "timestamp_ns": 398764,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 45,
      "timestamp_ns": 400054,
      "event": {
        "Input": {
          "text": "",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 46,
      "timestamp_ns": 400919,
      "event": {
        "Input": {
          "text": "let number_str = \"42\"",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 47,
      "timestamp_ns": 407319,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"42\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    },
    {
      "id": 48,
      "timestamp_ns": 409444,
      "event": {
        "Input": {
          "text": "number_str",
          "mode": "Interactive"
        }
      },
      "causality": []
    },
    {
      "id": 49,
      "timestamp_ns": 415050,
      "event": {
        "Output": {
          "result": {
            "Success": {
              "value": "String(\"\\\"42\\\"\")"
            }
          },
          "stdout": [],
          "stderr": []
        }
      },
      "causality": []
    }
  ],
  "checkpoints": {}
}