api-canvas-bclonan.netlify.app
Turn public data into connected cards. People and WebMCP agents work on the same local canvas.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 9 · Act 27 · Transact 1 · Score: Not yet scored
Tool inspector
create_transform
Replace a block's transform pipeline. Supports select, rename, filter, sort, limit, map, derive, aggregate, group, flatten, merge and join. No code execution.
Page: /
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
blockId |
string | yes | — |
expectedRevision |
integer | no | — |
steps |
array | yes | — |
Raw JSON schema
{
"type": "object",
"properties": {
"blockId": {
"type": "string",
"minLength": 1,
"maxLength": 120
},
"expectedRevision": {
"type": "integer",
"minimum": 0
},
"steps": {
"type": "array",
"maxItems": 20,
"items": {
"type": "object",
"additionalProperties": false,
"required": [
"op"
],
"properties": {
"op": {
"enum": [
"select",
"rename",
"filter",
"sort",
"limit",
"map",
"derive",
"aggregate",
"group",
"flatten",
"merge",
"join"
]
},
"field": {
"type": "string",
"maxLength": 500
},
"fields": {
"type": "array",
"items": {
"type": "string",
"maxLength": 500
},
"minItems": 1,
"maxItems": 40
},
"as": {
"type": "string",
"minLength": 1,
"maxLength": 120
},
"value": {
"type": [
"string",
"number",
"boolean",
"null"
],
"maxLength": 1000
},
"comparison": {
"enum": [
"eq",
"ne",
"gt",
"gte",
"lt",
"lte",
"contains"
]
},
"direction": {
"enum": [
"asc",
"desc"
]
},
"count": {
"type": "integer",
"minimum": 1,
"maximum": 5000
},
"mapping": {
"type": "object",
"minProperties": 1,
"maxProperties": 40,
"additionalProperties": {
"type": "string",
"maxLength": 500
},
"propertyNames": {
"pattern": "^[A-Za-z][A-Za-z0-9_-]{0,59}$"
}
},
"method": {
"enum": [
"count",
"sum",
"mean",
"min",
"max"
]
},
"calculation": {
"enum": [
"sum",
"difference",
"product",
"ratio"
]
},
"sourceId": {
"type": "string",
"minLength": 1,
"maxLength": 120
},
"rightField": {
"type": "string",
"maxLength": 500
}
}
}
}
},
"required": [
"blockId",
"steps"
],
"additionalProperties": false
}
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