Ash AI not working

Failed to JSON decode error response. ERROR: %Jason.DecodeError{position: 1005, token: nil, data: "{\n  \"error\": {\n    \"code\": 400,\n    \"message\": \"Invalid JSON payload received. Unknown name \\\"additionalProperties\\\" at 'tools[0].function_declarations[0].parameters

action :search_varieties_tool, :string do
      argument :query, :string do
        allow_nil?(false)
        public?(true)
      end

      run(fn ash_query, _context ->
        search_query = ash_query.arguments.query
        IO.inspect(search_query, label: "AI Tool Search Query")

        case embedding_search(search_query) do
          {:ok, varieties} ->
            # Return simplified data structure for AI
            simplified_varieties =
              varieties
              |> Enum.take(10)
              |> Enum.map(fn variety ->
                struct(variety, %{
                  processing: Enum.join(variety.processing || [], ", "),
                  variety: Enum.join(variety.variety || [], ", "),
                  description: String.slice(variety.description || "", 0, 200)
                })
              end)

            {:ok, simplified_varieties}

          {:error, _error} ->
            {:ok, []}
        end
      end)
    end