{
  "$defs": {
    "Window": {
      "description": "Measurement window. For point observations, ``start_ts == end_ts``.\n\nBoth fields are epoch seconds (float). Distinct from ``Observation.ts``\n(the emission time), because a sensor may compute an observation over\na window in the past and emit it later.",
      "properties": {
        "end_ts": {
          "description": "Window end, epoch seconds (>= start_ts)",
          "title": "End Ts",
          "type": "number"
        },
        "start_ts": {
          "description": "Window start, epoch seconds",
          "title": "Start Ts",
          "type": "number"
        }
      },
      "required": [
        "start_ts",
        "end_ts"
      ],
      "title": "Window",
      "type": "object"
    }
  },
  "$id": "https://behave.local/schema/observation/v1.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "description": "Shell-domain Observation: base envelope + BEHAVE-SHELL registry check.",
  "properties": {
    "confidence": {
      "description": "Sensor's confidence in this measurement (not in any downstream verdict)",
      "maximum": 1.0,
      "minimum": 0.0,
      "title": "Confidence",
      "type": "number"
    },
    "evidence_ref": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "Pointer to underlying raw evidence; NEVER the evidence itself",
      "title": "Evidence Ref"
    },
    "id": {
      "description": "UUID for dedup",
      "title": "Id",
      "type": "string"
    },
    "identity_ref": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "AttackerIdentity UUID if the observation is pre-attributed",
      "title": "Identity Ref"
    },
    "primitive": {
      "description": "Fully-qualified primitive path, e.g. 'motor.keystroke_cadence'",
      "title": "Primitive",
      "type": "string"
    },
    "source": {
      "description": "Canonical sensor identifier, e.g. 'decnet/sniffer/timing.py'",
      "minLength": 1,
      "title": "Source",
      "type": "string"
    },
    "ts": {
      "description": "Emission timestamp, epoch seconds",
      "title": "Ts",
      "type": "number"
    },
    "v": {
      "default": 1,
      "description": "Envelope schema version",
      "title": "V",
      "type": "integer"
    },
    "value": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "integer"
        },
        {
          "type": "number"
        },
        {
          "type": "boolean"
        },
        {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        {
          "items": {
            "type": "integer"
          },
          "type": "array"
        },
        {
          "items": {
            "type": "number"
          },
          "type": "array"
        },
        {
          "additionalProperties": true,
          "type": "object"
        }
      ],
      "description": "Value typed by the primitive's registry entry; see spec.primitives",
      "title": "Value"
    },
    "window": {
      "$ref": "#/$defs/Window",
      "description": "Measurement window"
    }
  },
  "required": [
    "primitive",
    "value",
    "confidence",
    "window",
    "source"
  ],
  "title": "Observation",
  "type": "object"
}