Properties
| Name | Type | Description |
|---|---|---|
| id | object | |
| takeoff_id | object | |
| group_id | stringnull | |
| description | string | |
| trade | object | |
| category | string | |
| item_type | string | |
| measure_type | object | |
| extracted_quantity | number | |
| quantity_override | numbernull | |
| effective_quantity | number | |
| unit | object | |
| tag | stringnull | |
| attributes | object | |
| sheet | object | |
| page_number | integer | |
| geometry | object | |
| evidence | array | |
| confidence | object | |
| review_status | object | |
| source | string | |
| note | stringnull |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/aginera-ai/json-schema/aginera-ai-takeoff-item-schema.json",
"title": "TakeoffItem",
"x-generated": "2026-11-01",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/aginera-ai-openapi.json#/components/schemas/TakeoffItem",
"type": "object",
"properties": {
"id": {
"$ref": "#/$defs/ItemId"
},
"takeoff_id": {
"$ref": "#/$defs/TakeoffId"
},
"group_id": {
"type": [
"string",
"null"
]
},
"description": {
"type": "string"
},
"trade": {
"$ref": "#/$defs/Trade"
},
"category": {
"type": "string"
},
"item_type": {
"type": "string"
},
"measure_type": {
"$ref": "#/$defs/MeasureType"
},
"extracted_quantity": {
"type": "number"
},
"quantity_override": {
"type": [
"number",
"null"
]
},
"effective_quantity": {
"type": "number"
},
"unit": {
"$ref": "#/$defs/Unit"
},
"tag": {
"type": [
"string",
"null"
]
},
"attributes": {
"type": "object",
"additionalProperties": {
"anyOf": [
{
"type": "string"
},
{
"type": "number"
},
{
"type": "boolean"
}
]
}
},
"sheet": {
"type": "object",
"properties": {
"number": {
"type": [
"string",
"null"
]
},
"title": {
"type": [
"string",
"null"
]
}
},
"required": [
"number",
"title"
]
},
"page_number": {
"type": "integer"
},
"geometry": {
"$ref": "#/$defs/Geometry"
},
"evidence": {
"type": "array",
"items": {
"$ref": "#/$defs/Evidence"
}
},
"confidence": {
"$ref": "#/$defs/ConfidenceBand"
},
"review_status": {
"$ref": "#/$defs/ReviewStatus"
},
"source": {
"type": "string",
"enum": [
"plan",
"schedule",
"legend",
"manual"
]
},
"note": {
"type": [
"string",
"null"
]
}
},
"required": [
"id",
"takeoff_id",
"description",
"trade",
"category",
"item_type",
"measure_type",
"extracted_quantity",
"quantity_override",
"effective_quantity",
"unit",
"tag",
"attributes",
"sheet",
"page_number",
"evidence",
"confidence",
"review_status",
"source",
"note"
],
"$defs": {
"ConfidenceBand": {
"type": "string",
"enum": [
"high",
"medium",
"low"
]
},
"Evidence": {
"type": "object",
"properties": {
"page_number": {
"type": "integer",
"minimum": 1
},
"bbox": {
"type": "array",
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
],
"description": "[x_min, y_min, x_max, y_max] normalised to page size, origin top-left."
}
},
"required": [
"page_number",
"bbox"
]
},
"Geometry": {
"oneOf": [
{
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"point"
]
},
"page_number": {
"type": "integer",
"minimum": 1
},
"coordinate_space": {
"type": "string",
"enum": [
"page_normalized"
]
},
"coordinates": {
"$ref": "#/$defs/NormPoint"
}
},
"required": [
"type",
"page_number",
"coordinate_space",
"coordinates"
]
},
{
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"bbox"
]
},
"page_number": {
"type": "integer",
"minimum": 1
},
"coordinate_space": {
"type": "string",
"enum": [
"page_normalized"
]
},
"coordinates": {
"type": "array",
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
}
},
"required": [
"type",
"page_number",
"coordinate_space",
"coordinates"
]
},
{
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"polyline"
]
},
"page_number": {
"type": "integer",
"minimum": 1
},
"coordinate_space": {
"type": "string",
"enum": [
"page_normalized"
]
},
"coordinates": {
"type": "array",
"items": {
"$ref": "#/$defs/NormPoint"
},
"minItems": 2
},
"scale": {
"$ref": "#/$defs/Scale"
}
},
"required": [
"type",
"page_number",
"coordinate_space",
"coordinates"
]
},
{
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"polygon"
]
},
"page_number": {
"type": "integer",
"minimum": 1
},
"coordinate_space": {
"type": "string",
"enum": [
"page_normalized"
]
},
"coordinates": {
"type": "array",
"items": {
"$ref": "#/$defs/NormPoint"
},
"minItems": 3
},
"holes": {
"type": "array",
"items": {
"type": "array",
"items": {
"$ref": "#/$defs/NormPoint"
},
"minItems": 3
}
},
"scale": {
"$ref": "#/$defs/Scale"
}
},
"required": [
"type",
"page_number",
"coordinate_space",
"coordinates"
]
}
],
"description": "Measured shape in page_normalized space (x, y in 0..1, origin top-left, page as displayed after rotation). bbox = [x_min, y_min, x_max, y_max]."
},
"ItemId": {
"type": "string",
"pattern": "^itm_[0-9A-Za-z]{22}$"
},
"MeasureType": {
"type": "string",
"enum": [
"count",
"length",
"area",
"volume",
"weight",
"time"
]
},
"NormPoint": {
"type": "array",
"prefixItems": [
{
"type": "number",
"minimum": 0,
"maximum": 1
},
{
"type": "number",
"minimum": 0,
"maximum": 1
}
]
},
"ReviewStatus": {
"type": "string",
"enum": [
"extracted",
"accepted",
"rejected",
"modified"
]
},
"Scale": {
"type": "object",
"properties": {
"units_per_normalized_x": {
"type": "number",
"description": "Real-world units spanned by the full normalized page width."
},
"unit": {
"$ref": "#/$defs/Unit"
},
"source": {
"type": "string",
"enum": [
"title_block",
"scale_bar",
"declared"
]
}
},
"required": [
"units_per_normalized_x",
"unit",
"source"
]
},
"TakeoffId": {
"type": "string",
"pattern": "^tko_[0-9A-Za-z]{22}$"
},
"Trade": {
"type": "string",
"enum": [
"electrical",
"mechanical",
"plumbing",
"fire_protection",
"structural",
"architectural",
"civil",
"process",
"other"
]
},
"Unit": {
"type": "string",
"pattern": "^[A-Z0-9]{1,6}$",
"description": "Canonical unit code from /reference/units (extensible; not a closed enum). Examples EA, LF, FT, IN, SF, SY, CF, CY, LB, TON, HR, GAL, M, MM, M2, M3, KG, T, L, LS."
}
}
}
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