{
  "handle": "Exception",
  "data_schema": {
    "type": "object",
    "required": [
      "error_code",
      "message"
    ],
    "properties": {
      "error_code": {
        "type": "string",
        "description": "Standardized failure ID"
      },
      "message": {
        "type": "string",
        "description": "Human-readable description"
      },
      "stack_trace": {
        "type": "array",
        "description": "Execution context at failure"
      },
      "severity": {
        "type": "string",
        "enum": [
          "Fatal",
          "Error",
          "Warning"
        ]
      }
    }
  },
  "mechanism": "A signal indicating that the standard execution flow has encountered a critical anomaly or invalid {{state}}. Must be handled explicitly by a {{circuit_breaker}} or {{fail_closed}} policy to prevent system corruption.",
  "gloss": "Runtime anomaly signal",
  "_meta": {
    "ring": 0,
    "tier": 1,
    "supersedes": [
      "sema:Exception#mh:SHA-256:bcdc11a8b6e4c1af2def02029ab03bf24c1480bd827ee3d570e374096cfccdc6",
      "sema:Exception#mh:SHA-256:39fb7ba646e5c1dc91699ae4b3dc0887f4ec476fe6bf29970b83aaaca025f686",
      "sema:Exception#mh:SHA-256:054ce28455dfd0a13bce0b5a23e048429a58a1b7e6c9082252bc3f815fe6be21",
      "sema:Exception#mh:SHA-256:61e41a9f4e26dad1ab09516b35640c6204e99e7d1df29ce0899bcbb24a126e1d",
      "sema:Exception#mh:SHA-256:7c68ca1c9f4cae08d081d6fd31a667fa16a67d2de79eae1a96b196ad69bb9869"
    ],
    "path": [
      "Infrastructure",
      "Data Structures"
    ]
  },
  "sema_id": "sema:Exception#mh:SHA-256:ae9485039008abed9587e74c05a8c31c37d9a8f70347a11c0630fe87673fb7bb",
  "sema_ref": "Exception#ae94",
  "sema_stub": "ae94",
  "invariants": [
    "Classifies the anomaly by `error_code`.",
    "Must be handled by {{circuit_breaker}} or {{fail_closed}}, never merely observed."
  ],
  "failure_modes": [
    "Swallowed: the signal is caught and discarded, so the invalid {{state}} continues unhandled.",
    "Over-broad code: one `error_code` covers unrelated anomalies, so no handler can dispatch on it."
  ],
  "dependencies": {
    "references": {
      "circuit_breaker": "sema:CircuitBreaker#mh:SHA-256:3caa9c387c04bb2ac66ec35a6cfe2665e11339f0d47576b96d68229226580c76",
      "fail_closed": "sema:FailClosed#mh:SHA-256:dfbcf50c68d036ae4f18719bf59f41eddd83b5510bd60ff1326f8854240d8066",
      "state": "sema:State#mh:SHA-256:4f25e6a16ccd37dc0bc154cccc7055cb504d49daa8b712f372a425eb6c7b8cb2"
    }
  },
  "sema_layer": "Infrastructure",
  "sema_category": "Data Structures",
  "used_by": {
    "references": {
      "TaskLifecycle": "sema:TaskLifecycle#mh:SHA-256:559124d595219af971fe018e4709077bbe77f3ce7e1769a058cbeffd4a11c38b"
    }
  }
}