{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/error-details/unsupported-refinement-dimension.json",
  "title": "Unsupported Refinement Dimension Details",
  "description": "Recommended details shape for UNSUPPORTED_FEATURE errors rejecting a refine_proposals request that uses a typed dimension omitted from the seller's explicit proposal_refinement.supported_dimensions. Lets an authorized buyer remove or translate the unsupported fields without another capability round trip.",
  "type": "object",
  "properties": {
    "unsupported_dimension": {
      "type": "string",
      "minLength": 1,
      "description": "The first typed revision dimension in the request that the seller does not support, named with the supported_dimensions vocabulary."
    },
    "supported_dimensions": {
      "type": "array",
      "description": "The seller's complete supported_dimensions declaration, echoed so the buyer can reconstruct a valid request. An empty array means ask-only refinement.",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "uniqueItems": true
    }
  },
  "required": [
    "unsupported_dimension",
    "supported_dimensions"
  ],
  "additionalProperties": true,
  "examples": [
    {
      "unsupported_dimension": "criteria",
      "supported_dimensions": [
        "total_budget",
        "alternatives"
      ]
    },
    {
      "unsupported_dimension": "total_budget",
      "supported_dimensions": []
    }
  ]
}