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Glama

Brainy Prices — UAE Cost of Living

by ae.brainy
OverviewDiscussionsAdmin

costs_by_area

Read-onlyIdempotent

Dubai areas ranked by monthly cost: rent, fees, bills (+school). Not full budgets.

Input Schema

NameRequiredDescriptionDefault
areaNo
sortNototal_monthly_aed
cursorNo
zone_idNo
bedroomsNo
page_sizeNo
transportNo
min_contractsNo
property_typeNo
include_schoolNo

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changed
    • addedOutput schema / $defs / HousingFeePause
      Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "notice": {
+      "type": "string"
+    },
+    "since": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "status": {
+      "const": "paused"
+    }
+  },
+  "required": [
+    "status",
+    "since",
+    "notice"
+  ],
+  "type": "object"
+}
    • removedOutput schema / $schema
      Removed value: -"https://json-schema.org/draft/2020-12/schema"
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "context": {
-        "anyOf": [
-          {
-            "additionalProperties": true,
-            "required": [
-              "rent_period",
-              "profile",
-              "assumptions",
-              "shared_monthly_aed",
-              "not_included"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "data": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "cheapest_school_annual_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "cheapest_school_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "communities": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "contracts": {
-              "type": "integer"
-            },
-            "housing_fee_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "name": {
-              "type": "string"
-            },
-            "open_in_browser": {
-              "type": [
-                "string",
-                "null"
-              ]
-            },
-            "provenance": {
-              "additionalProperties": true,
-              "required": [
-                "source_id",
-                "license_id",
-                "source_url",
-                "observed_on",
-                "observed_at",
-                "published_on",
-                "published_at",
-                "retrieved_at",
-                "stale",
-                "status",
-                "paused_since",
-                "flags"
-              ],
-              "type": "object"
-            },
-            "rank": {
-              "type": "integer"
-            },
-            "rent_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "rent_p25_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "rent_p75_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "schools_with_fees": {
-              "type": [
-                "integer",
-                "null"
-              ]
-            },
-            "total_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "total_with_school_monthly_aed": {
-              "type": [
-                "number",
-                "null"
-              ]
-            },
-            "zone_id": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "zone_id",
-            "name",
-            "communities",
-            "rent_monthly_aed",
-            "rent_p25_monthly_aed",
-            "rent_p75_monthly_aed",
-            "housing_fee_monthly_aed",
-            "total_monthly_aed",
-            "contracts",
-            "cheapest_school_monthly_aed",
-            "total_with_school_monthly_aed",
-            "open_in_browser",
-            "provenance"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "links": {
-        "additionalProperties": false,
-        "properties": {
-          "docs": {
-            "type": "string"
-          },
-          "next": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "open_in_browser": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "self": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "self",
-          "next",
-          "open_in_browser",
-          "docs"
-        ],
-        "type": "object"
-      },
-      "meta": {
-        "additionalProperties": true,
-        "required": [
-          "api_version",
-          "content_language",
-          "generated_at",
-          "currency",
-          "attribution",
-          "disclaimer",
-          "dataset",
-          "page"
-        ],
-        "type": "object"
-      }
-    },
-    "required": [
-      "meta",
-      "context",
-      "data",
-      "links"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "additionalProperties": false,
-        "properties": {
-          "code": {
-            "type": "string"
-          },
-          "message": {
-            "type": "string"
-          },
-          "retry_after_s": {
-            "type": [
-              "integer",
-              "null"
-            ]
-          },
-          "retryable": {
-            "type": "boolean"
-          }
-        },
-        "required": [
-          "code",
-          "message",
-          "retryable",
-          "retry_after_s"
-        ],
-        "type": "object"
-      },
-      "request_id": {
-        "type": [
-          "string",
-          "null"
-        ]
-      }
-    },
-    "required": [
-      "error",
-      "request_id"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "anyOf": [
+          {
+            "additionalProperties": true,
+            "required": [
+              "rent_period",
+              "profile",
+              "assumptions",
+              "shared_monthly_aed",
+              "not_included"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "data": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "cheapest_school_annual_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "cheapest_school_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "communities": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "contracts": {
+              "type": "integer"
+            },
+            "dewa_consumption_charge_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "fuel_surcharge": {
+              "$ref": "#/$defs/HousingFeePause"
+            },
+            "housing_fee": {
+              "$ref": "#/$defs/HousingFeePause"
+            },
+            "housing_fee_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "meter_service_charge": {
+              "$ref": "#/$defs/HousingFeePause"
+            },
+            "name": {
+              "type": "string"
+            },
+            "open_in_browser": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "provenance": {
+              "additionalProperties": true,
+              "required": [
+                "source_id",
+                "license_id",
+                "source_url",
+                "observed_on",
+                "observed_at",
+                "published_on",
+                "published_at",
+                "retrieved_at",
+                "stale",
+                "status",
+                "paused_since",
+                "flags"
+              ],
+              "type": "object"
+            },
+            "rank": {
+              "type": "integer"
+            },
+            "rent_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "rent_p25_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "rent_p75_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "schools_with_fees": {
+              "type": [
+                "integer",
+                "null"
+              ]
+            },
+            "status": {
+              "const": "partial"
+            },
+            "subtotal_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "subtotal_label": {
+              "type": "string"
+            },
+            "total_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "total_with_school_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "zone_id": {
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "links": {
+        "additionalProperties": false,
+        "properties": {
+          "docs": {
+            "type": "string"
+          },
+          "next": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "open_in_browser": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "self": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "self",
+          "next",
+          "open_in_browser",
+          "docs"
+        ],
+        "type": "object"
+      },
+      "meta": {
+        "additionalProperties": true,
+        "required": [
+          "api_version",
+          "content_language",
+          "generated_at",
+          "currency",
+          "attribution",
+          "disclaimer",
+          "dataset",
+          "page"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "meta",
+      "context",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "additionalProperties": false,
+        "properties": {
+          "code": {
+            "type": "string"
+          },
+          "message": {
+            "type": "string"
+          },
+          "retry_after_s": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "retryable": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "code",
+          "message",
+          "retryable",
+          "retry_after_s"
+        ],
+        "type": "object"
+      },
+      "request_id": {
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "error",
+      "request_id"
+    ],
+    "type": "object"
+  }
+]
  2. Changed1 schema field changed
    • removedInput schema / $schema
      Removed value: -"https://json-schema.org/draft/2020-12/schema"
  3. Changed11 schema fields changed
    • removedInput schema / properties / property_type / type
      Removed value: -"string"
    • removedInput schema / properties / sort / type
      Removed value: -"string"
    • removedInput schema / properties / transport / type
      Removed value: -"string"
    • removedOutput schema / $defs / AreaCostContext
      Removed value: -{
-  "additionalProperties": true,
-  "required": [
-    "rent_period",
-    "profile",
-    "assumptions",
-    "shared_monthly_aed",
-    "not_included"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / AreaLivingCost
      Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "cheapest_school_annual_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "cheapest_school_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "communities": {
-      "items": {
-        "type": "string"
-      },
-      "type": "array"
-    },
-    "contracts": {
-      "type": "integer"
-    },
-    "housing_fee_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "name": {
-      "type": "string"
-    },
-    "open_in_browser": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "provenance": {
-      "$ref": "#/$defs/Provenance"
-    },
-    "rank": {
-      "type": "integer"
-    },
-    "rent_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "rent_p25_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "rent_p75_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "schools_with_fees": {
-      "type": [
-        "integer",
-        "null"
-      ]
-    },
-    "total_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "total_with_school_monthly_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "zone_id": {
-      "type": "string"
-    }
-  },
-  "required": [
-    "zone_id",
-    "name",
-    "communities",
-    "rent_monthly_aed",
-    "rent_p25_monthly_aed",
-    "rent_p75_monthly_aed",
-    "housing_fee_monthly_aed",
-    "total_monthly_aed",
-    "contracts",
-    "cheapest_school_monthly_aed",
-    "total_with_school_monthly_aed",
-    "open_in_browser",
-    "provenance"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / AreaLivingCostListResponse
      Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "context": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/AreaCostContext"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "data": {
-      "items": {
-        "$ref": "#/$defs/AreaLivingCost"
-      },
-      "type": "array"
-    },
-    "links": {
-      "$ref": "#/$defs/Links"
-    },
-    "meta": {
-      "$ref": "#/$defs/ResponseMeta"
-    }
-  },
-  "required": [
-    "meta",
-    "context",
-    "data",
-    "links"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / Links
      Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "docs": {
-      "type": "string"
-    },
-    "next": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "open_in_browser": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "self": {
-      "type": "string"
-    }
-  },
-  "required": [
-    "self",
-    "next",
-    "open_in_browser",
-    "docs"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / Provenance
      Removed value: -{
-  "additionalProperties": true,
-  "required": [
-    "source_id",
-    "license_id",
-    "source_url",
-    "observed_on",
-    "observed_at",
-    "published_on",
-    "published_at",
-    "retrieved_at",
-    "stale",
-    "status",
-    "paused_since",
-    "flags"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / ResponseMeta
      Removed value: -{
-  "additionalProperties": true,
-  "required": [
-    "api_version",
-    "content_language",
-    "generated_at",
-    "currency",
-    "attribution",
-    "disclaimer",
-    "dataset",
-    "page"
-  ],
-  "type": "object"
-}
    • removedOutput schema / $defs / ToolFailure
      Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "error": {
-      "additionalProperties": false,
-      "properties": {
-        "code": {
-          "type": "string"
-        },
-        "message": {
-          "type": "string"
-        },
-        "retry_after_s": {
-          "type": [
-            "integer",
-            "null"
-          ]
-        },
-        "retryable": {
-          "type": "boolean"
-        }
-      },
-      "required": [
-        "code",
-        "message",
-        "retryable",
-        "retry_after_s"
-      ],
-      "type": "object"
-    },
-    "request_id": {
-      "type": [
-        "string",
-        "null"
-      ]
-    }
-  },
-  "required": [
-    "error",
-    "request_id"
-  ],
-  "type": "object"
-}
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "$ref": "#/$defs/AreaLivingCostListResponse"
-  },
-  {
-    "$ref": "#/$defs/ToolFailure"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "anyOf": [
+          {
+            "additionalProperties": true,
+            "required": [
+              "rent_period",
+              "profile",
+              "assumptions",
+              "shared_monthly_aed",
+              "not_included"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "data": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "cheapest_school_annual_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "cheapest_school_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "communities": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "contracts": {
+              "type": "integer"
+            },
+            "housing_fee_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "name": {
+              "type": "string"
+            },
+            "open_in_browser": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "provenance": {
+              "additionalProperties": true,
+              "required": [
+                "source_id",
+                "license_id",
+                "source_url",
+                "observed_on",
+                "observed_at",
+                "published_on",
+                "published_at",
+                "retrieved_at",
+                "stale",
+                "status",
+                "paused_since",
+                "flags"
+              ],
+              "type": "object"
+            },
+            "rank": {
+              "type": "integer"
+            },
+            "rent_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "rent_p25_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "rent_p75_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "schools_with_fees": {
+              "type": [
+                "integer",
+                "null"
+              ]
+            },
+            "total_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "total_with_school_monthly_aed": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "zone_id": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "zone_id",
+            "name",
+            "communities",
+            "rent_monthly_aed",
+            "rent_p25_monthly_aed",
+            "rent_p75_monthly_aed",
+            "housing_fee_monthly_aed",
+            "total_monthly_aed",
+            "contracts",
+            "cheapest_school_monthly_aed",
+            "total_with_school_monthly_aed",
+            "open_in_browser",
+            "provenance"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "links": {
+        "additionalProperties": false,
+        "properties": {
+          "docs": {
+            "type": "string"
+          },
+          "next": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "open_in_browser": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "self": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "self",
+          "next",
+          "open_in_browser",
+          "docs"
+        ],
+        "type": "object"
+      },
+      "meta": {
+        "additionalProperties": true,
+        "required": [
+          "api_version",
+          "content_language",
+          "generated_at",
+          "currency",
+          "attribution",
+          "disclaimer",
+          "dataset",
+          "page"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "meta",
+      "context",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "additionalProperties": false,
+        "properties": {
+          "code": {
+            "type": "string"
+          },
+          "message": {
+            "type": "string"
+          },
+          "retry_after_s": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "retryable": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "code",
+          "message",
+          "retryable",
+          "retry_after_s"
+        ],
+        "type": "object"
+      },
+      "request_id": {
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "error",
+      "request_id"
+    ],
+    "type": "object"
+  }
+]
  4. Added

TDQS

B3.1/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so the safety profile is fully covered. The description adds domain behavior — that results are ranked and cover rent, fees, bills, and optionally school — but says nothing about pagination (cursor/page_size exist) or whether a single area lookup returns one record versus a ranking.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two terse fragments, front-loaded with the resource and metric, with zero filler. It is arguably over-compressed for a 10-parameter tool, but nothing in the text is wasted and the key scope statement comes first.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists so return values needn't be described, but with 10 optional parameters at 0% schema coverage the description is far too thin. An agent cannot tell what a 'zone_id' is versus an 'area', what the transport modes imply for costing, or how min_contracts changes the ranking, and would likely call the tool with guessed filters.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% across 10 parameters, so the description carries the full burden and largely fails it. Only include_school is obliquely referenced via '(+school)'; area vs. zone_id, transport modes, property_type, bedrooms, min_contracts, and the sort enum values are completely unexplained, leaving an agent to guess at the most consequential filters.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States the resource and the metric precisely: Dubai areas ranked by monthly cost, with the cost components enumerated (rent, fees, bills, optional school). 'Not full budgets' sets a scope boundary. It does not name or distinguish itself from close siblings like costs_by_emirate, fixed_monthly_costs, or housing_rents, which an agent must infer.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is only implied: the '(+school)' and 'Not full budgets' fragments hint at when this fits versus a full-budget calc, but no alternative tool is named and no precondition (e.g., Dubai-only, ranked output) is spelled out. An agent gets a rough sense of intent without explicit routing guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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