{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "CalcOutput",
"description": "NDJSON output for math expression evaluation and field extraction.",
"type": "object",
"properties": {
"type": {
"description": "Event type discriminator.",
"type": "string"
},
"expression": {
"description": "The input expression that was evaluated.",
"type": "string"
},
"result": {
"description": "Computed result as a string.",
"type": "string"
},
"elapsed_ms": {
"description": "Operation duration in milliseconds.",
"type": "integer",
"format": "uint64",
"minimum": 0
}
},
"required": [
"type",
"expression",
"result",
"elapsed_ms"
]
}