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MCP tool

precheck_creative

Run the AI clearance precheck on an existing creative: predicted UK CAP/BCAP, Clearcast/CAA, publisher, and search/social platform-review flags with rule citations, before you submit anywhere. Pass any factual claims the copy makes so substantiation requirements are checked too.

Input

Pass fields from this schema as the tool arguments. Runtime ownership, product scope and readiness checks still apply.

Input JSON Schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "creativeId": {
      "type": "string",
      "description": "creative id, e.g. cr-1a2b3c4d"
    },
    "claims": {
      "description": "factual claims made in the copy",
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": [
    "creativeId"
  ]
}

REST mapping and authority

The tool wraps this REST endpoint. The mapping identifies path/query/body transformations and approval or idempotency headers.

Request contract
{
  "method": "POST",
  "path": "/api/v1/creatives/{creativeId}/precheck",
  "pathFields": [
    "creativeId"
  ],
  "pathSchema": {
    "type": "object",
    "properties": {
      "creativeId": {
        "type": "string",
        "description": "creative id, e.g. cr-1a2b3c4d"
      }
    },
    "additionalProperties": false,
    "required": [
      "creativeId"
    ]
  },
  "pathEncoding": "encodeURIComponent for each path field",
  "governedAction": null,
  "headers": {},
  "bodySchema": {
    "type": "object",
    "properties": {
      "claims": {
        "description": "factual claims made in the copy",
        "type": "array",
        "items": {
          "type": "string"
        }
      }
    },
    "additionalProperties": false
  },
  "responseMapping": "REST JSON is returned as MCP structuredContent and a compatibility text block; privacy-sensitive tools validate their output schema."
}

Output

This is the registered MCP output envelope. Nested fields are only modeled where the schema explicitly defines them.

Output JSON Schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "precheck": {
      "type": "object",
      "propertyNames": {
        "type": "string"
      },
      "additionalProperties": {}
    }
  },
  "required": [
    "precheck"
  ],
  "additionalProperties": {}
}

Safety annotations

MCP annotations
{
  "readOnlyHint": false,
  "destructiveHint": true,
  "idempotentHint": false,
  "openWorldHint": true
}

Annotations help a client present the tool. The API independently enforces authorization and exact action approvals. Error and retry guidance →

precheck_creative | AdBuyMCP docs