Brainy Prices — UAE Cost of Living

transport_fares

Read-onlyIdempotent

Taxi fare estimate, or metro/bus fares, parking and toll tariffs. Not app quotes.

Input Schema

Name	Required	Description	Default
`km`	No
`mode`	Yes
`booking`	No
`emirate`	No
`page_size`	No
`to_sharjah`	No
`operator_id`	No
`wait_minutes`	No

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 30, 2026
- removedOutput schema / $schema
```
Removed value: -"https://json-schema.org/draft/2020-12/schema"
```
Changed1 schema field changedOct 13, 2026
- removedInput schema / $schema
```
Removed value: -"https://json-schema.org/draft/2020-12/schema"
```

Changed18 schema fields changedOct 6, 2026

removedInput schema / properties / booking / type
```
Removed value: -"string"
```
removedInput schema / properties / emirate / type
```
Removed value: -"string"
```
removedInput schema / properties / mode / type
```
Removed value: -"string"
```
removedInput schema / properties / operator_id / type
```
Removed value: -"string"
```

removedOutput schema / $defs / ParkingTariffs

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "average_paid_per_hour": {
-      "additionalProperties": false,
-      "properties": {
-        "all_zones_aed": {
-          "type": [
-            "number",
-            "null"
-          ]
-        },
-        "by_zone": {
-          "items": {
-            "additionalProperties": false,
-            "properties": {
-              "aed": {
-                "type": "number"
-              },
-              "previous_aed": {
-                "type": [
-                  "number",
-                  "null"
-                ]
-              },
-              "zones": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "zones",
-              "aed",
-              "previous_aed"
-            ],
-            "type": "object"
-          },
-          "type": "array"
-        },
-        "compared_with": {
-          "type": "string"
-        },
-        "period": {
-          "type": "string"
-        },
-        "previous_all_zones_aed": {
-          "type": [
-            "number",
-            "null"
-          ]
-        },
-        "what": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "period",
-        "compared_with",
-        "what",
-        "by_zone",
-        "all_zones_aed",
-        "previous_all_zones_aed"
-      ],
-      "type": [
-        "object",
-        "null"
-      ]
-    },
-    "chargeable_hours": {
-      "items": {
-        "$ref": "#/$defs/TimeRange"
-      },
-      "type": "array"
-    },
-    "effective_on": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "emirate": {
-      "enum": [
-        "dubai",
-        "abu_dhabi",
-        "sharjah",
-        "ajman",
-        "umm_al_quwain",
-        "ras_al_khaimah",
-        "fujairah"
-      ],
-      "type": "string"
-    },
-    "free_days": {
-      "type": "string"
-    },
-    "grand_events": {
-      "additionalProperties": false,
-      "properties": {
-        "aed_per_hour": {
-          "type": "number"
-        },
-        "hours": {
-          "items": {
-            "$ref": "#/$defs/TimeRange"
-          },
-          "type": "array"
-        },
-        "where": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "aed_per_hour",
-        "hours",
-        "where"
-      ],
-      "type": [
-        "object",
-        "null"
-      ]
-    },
-    "multi_storey": {
-      "additionalProperties": false,
-      "properties": {
-        "aed_per_hour": {
-          "type": "number"
-        },
-        "chargeable": {
-          "type": "string"
-        },
-        "max_aed_over_8_hours_in_24": {
-          "type": [
-            "number",
-            "null"
-          ]
-        }
-      },
-      "required": [
-        "aed_per_hour",
-        "chargeable",
-        "max_aed_over_8_hours_in_24"
-      ],
-      "type": [
-        "object",
-        "null"
-      ]
-    },
-    "off_peak_hours": {
-      "items": {
-        "$ref": "#/$defs/TimeRange"
-      },
-      "type": "array"
-    },
-    "operator_name": {
-      "type": "string"
-    },
-    "peak_hours": {
-      "items": {
-        "$ref": "#/$defs/TimeRange"
-      },
-      "type": "array"
-    },
-    "posted_hourly_aed": {
-      "type": "null"
-    },
-    "posted_hourly_note": {
-      "type": "string"
-    },
-    "provenance": {
-      "$ref": "#/$defs/Provenance"
-    },
-    "seasonal_cards": {
-      "additionalProperties": false,
-      "properties": {
-        "as_of": {
-          "type": "string"
-        },
-        "options": {
-          "items": {
-            "additionalProperties": false,
-            "properties": {
-              "option_id": {
-                "type": "string"
-              },
-              "prices": {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "aed": {
-                      "type": "number"
-                    },
-                    "months": {
-                      "type": "integer"
-                    }
-                  },
-                  "required": [
-                    "months",
-                    "aed"
-                  ],
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              "zones": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "option_id",
-              "zones",
-              "prices"
-            ],
-            "type": "object"
-          },
-          "type": "array"
-        }
-      },
-      "required": [
-        "as_of",
-        "options"
-      ],
-      "type": [
-        "object",
-        "null"
-      ]
-    },
-    "zones": {
-      "items": {
-        "additionalProperties": false,
-        "properties": {
-          "code": {
-            "type": "string"
-          },
-          "kind": {
-            "enum": [
-              "on_street",
-              "off_street"
-            ],
-            "type": "string"
-          },
-          "premium_code": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "code",
-          "kind",
-          "premium_code"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    }
-  },
-  "required": [
-    "emirate",
-    "operator_name",
-    "effective_on",
-    "chargeable_hours",
-    "peak_hours",
-    "off_peak_hours",
-    "free_days",
-    "zones",
-    "posted_hourly_aed",
-    "posted_hourly_note",
-    "average_paid_per_hour",
-    "seasonal_cards",
-    "multi_storey",
-    "grand_events",
-    "provenance"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / ParkingTariffsResponse

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "context": {
-      "$ref": "#/$defs/TransportReferenceContext"
-    },
-    "data": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/ParkingTariffs"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "links": {
-      "$ref": "#/$defs/Links"
-    },
-    "meta": {
-      "$ref": "#/$defs/ResponseMeta"
-    }
-  },
-  "required": [
-    "meta",
-    "data",
-    "links"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / PublicTransportFare / properties / emirate / type
```
Removed value: -"string"
```
removedOutput schema / $defs / PublicTransportFare / properties / fares / items / properties / per / type
```
Removed value: -"string"
```
removedOutput schema / $defs / PublicTransportFare / properties / operator_id / type
```
Removed value: -"string"
```
removedOutput schema / $defs / PublicTransportFare / properties / status / type
```
Removed value: -"string"
```

removedOutput schema / $defs / PublicTransportFareListResponse

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "context": {
-      "$ref": "#/$defs/TransportReferenceContext"
-    },
-    "data": {
-      "items": {
-        "$ref": "#/$defs/PublicTransportFare"
-      },
-      "type": "array"
-    },
-    "links": {
-      "$ref": "#/$defs/Links"
-    },
-    "meta": {
-      "$ref": "#/$defs/ResponseMeta"
-    }
-  },
-  "required": [
-    "meta",
-    "data",
-    "links"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / TaxiFares

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "abu_dhabi": {
-      "additionalProperties": false,
-      "properties": {
-        "notice": {
-          "type": [
-            "string",
-            "null"
-          ]
-        },
-        "paused_since": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "status": {
-          "enum": [
-            "ok",
-            "paused"
-          ],
-          "type": "string"
-        }
-      },
-      "required": [
-        "status",
-        "notice",
-        "paused_since"
-      ],
-      "type": "object"
-    },
-    "ehail_starting_aed": {
-      "additionalProperties": false,
-      "properties": {
-        "friday": {
-          "items": {
-            "$ref": "#/$defs/TaxiBand"
-          },
-          "type": "array"
-        },
-        "weekdays": {
-          "items": {
-            "$ref": "#/$defs/TaxiBand"
-          },
-          "type": "array"
-        },
-        "weekends": {
-          "items": {
-            "$ref": "#/$defs/TaxiBand"
-          },
-          "type": "array"
-        }
-      },
-      "required": [
-        "weekdays",
-        "friday",
-        "weekends"
-      ],
-      "type": "object"
-    },
-    "minimum_fare_aed": {
-      "additionalProperties": false,
-      "properties": {
-        "ehail": {
-          "type": [
-            "number",
-            "null"
-          ]
-        },
-        "street": {
-          "type": [
-            "number",
-            "null"
-          ]
-        }
-      },
-      "required": [
-        "street",
-        "ehail"
-      ],
-      "type": "object"
-    },
-    "not_included": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "operator_name": {
-      "type": "string"
-    },
-    "per_km_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "provenance": {
-      "$ref": "#/$defs/Provenance"
-    },
-    "public_transport": {
-      "items": {
-        "$ref": "#/$defs/PublicTransportFare"
-      },
-      "type": "array"
-    },
-    "sharjah_surcharge_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "sharjah_taxi_notice": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "street_hail_starting_aed": {
-      "items": {
-        "$ref": "#/$defs/TaxiBand"
-      },
-      "type": "array"
-    },
-    "trip": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/TaxiTrip"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "waiting_per_minute_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    }
-  },
-  "required": [
-    "operator_name",
-    "street_hail_starting_aed",
-    "ehail_starting_aed",
-    "per_km_aed",
-    "minimum_fare_aed",
-    "waiting_per_minute_aed",
-    "sharjah_surcharge_aed",
-    "trip",
-    "abu_dhabi",
-    "not_included",
-    "provenance"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / TaxiFaresResponse

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "data": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/TaxiFares"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "links": {
-      "$ref": "#/$defs/Links"
-    },
-    "meta": {
-      "$ref": "#/$defs/ResponseMeta"
-    }
-  },
-  "required": [
-    "meta",
-    "data",
-    "links"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / TaxiTrip

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "booking": {
-      "enum": [
-        "street_day",
-        "street_night",
-        "ehail_offpeak",
-        "ehail_peak",
-        "ehail_night"
-      ],
-      "type": "string"
-    },
-    "distance_aed": {
-      "type": "number"
-    },
-    "km": {
-      "type": "number"
-    },
-    "minimum_aed": {
-      "type": "number"
-    },
-    "minimum_applied": {
-      "type": "boolean"
-    },
-    "starting_aed": {
-      "type": "number"
-    },
-    "surcharge_aed": {
-      "type": "number"
-    },
-    "to_sharjah": {
-      "type": "boolean"
-    },
-    "total_aed": {
-      "type": "number"
-    },
-    "wait_minutes": {
-      "type": "number"
-    },
-    "waiting_aed": {
-      "type": "number"
-    }
-  },
-  "required": [
-    "km",
-    "booking",
-    "wait_minutes",
-    "to_sharjah",
-    "starting_aed",
-    "distance_aed",
-    "waiting_aed",
-    "surcharge_aed",
-    "minimum_aed",
-    "minimum_applied",
-    "total_aed"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / TollTariff

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "effective_on": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "emirate": {
-      "enum": [
-        "dubai",
-        "abu_dhabi",
-        "sharjah",
-        "ajman",
-        "umm_al_quwain",
-        "ras_al_khaimah",
-        "fujairah"
-      ],
-      "type": "string"
-    },
-    "gate_count": {
-      "type": [
-        "integer",
-        "null"
-      ]
-    },
-    "gates_named": {
-      "items": {
-        "additionalProperties": false,
-        "properties": {
-          "name": {
-            "type": "string"
-          },
-          "opened_on": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "road": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "name",
-          "road",
-          "opened_on"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    },
-    "notes": {
-      "items": {
-        "type": "string"
-      },
-      "type": "array"
-    },
-    "notice": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "operator_id": {
-      "enum": [
-        "salik",
-        "darb"
-      ],
-      "type": "string"
-    },
-    "operator_name": {
-      "type": "string"
-    },
-    "paused_since": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "provenance": {
-      "$ref": "#/$defs/Provenance"
-    },
-    "schedule": {
-      "items": {
-        "additionalProperties": false,
-        "properties": {
-          "aed_per_crossing": {
-            "type": "number"
-          },
-          "days": {
-            "enum": [
-              "mon_sat",
-              "sun"
-            ],
-            "type": "string"
-          },
-          "hours": {
-            "items": {
-              "$ref": "#/$defs/TimeRange"
-            },
-            "type": "array"
-          },
-          "period": {
-            "enum": [
-              "peak",
-              "off_peak",
-              "late_night"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "days",
-          "period",
-          "hours",
-          "aed_per_crossing"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    },
-    "status": {
-      "enum": [
-        "ok",
-        "paused"
-      ],
-      "type": "string"
-    }
-  },
-  "required": [
-    "operator_id",
-    "operator_name",
-    "emirate",
-    "status",
-    "notice",
-    "paused_since",
-    "effective_on",
-    "gate_count",
-    "gates_named",
-    "schedule",
-    "notes",
-    "provenance"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / TollTariffListResponse

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "context": {
-      "$ref": "#/$defs/TransportReferenceContext"
-    },
-    "data": {
-      "items": {
-        "$ref": "#/$defs/TollTariff"
-      },
-      "type": "array"
-    },
-    "links": {
-      "$ref": "#/$defs/Links"
-    },
-    "meta": {
-      "$ref": "#/$defs/ResponseMeta"
-    }
-  },
-  "required": [
-    "meta",
-    "data",
-    "links"
-  ],
-  "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/TaxiFaresResponse"
-  },
-  {
-    "$ref": "#/$defs/PublicTransportFareListResponse"
-  },
-  {
-    "$ref": "#/$defs/ParkingTariffsResponse"
-  },
-  {
-    "$ref": "#/$defs/TollTariffListResponse"
-  },
-  {
-    "$ref": "#/$defs/ToolFailure"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "data": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "abu_dhabi": {
+                "additionalProperties": false,
+                "properties": {
+                  "notice": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "paused_since": {
+                    "anyOf": [
+                      {
+                        "type": "string"
+                      },
+                      {
+                        "type": "null"
+                      }
+                    ]
+                  },
+                  "status": {
+                    "enum": [
+                      "ok",
+                      "paused"
+                    ]
+                  }
+                },
+                "required": [
+                  "status",
+                  "notice",
+                  "paused_since"
+                ],
+                "type": "object"
+              },
+              "ehail_starting_aed": {
+                "additionalProperties": false,
+                "properties": {
+                  "friday": {
+                    "items": {
+                      "$ref": "#/$defs/TaxiBand"
+                    },
+                    "type": "array"
+                  },
+                  "weekdays": {
+                    "items": {
+                      "$ref": "#/$defs/TaxiBand"
+                    },
+                    "type": "array"
+                  },
+                  "weekends": {
+                    "items": {
+                      "$ref": "#/$defs/TaxiBand"
+                    },
+                    "type": "array"
+                  }
+                },
+                "required": [
+                  "weekdays",
+                  "friday",
+                  "weekends"
+                ],
+                "type": "object"
+              },
+              "minimum_fare_aed": {
+                "additionalProperties": false,
+                "properties": {
+                  "ehail": {
+                    "type": [
+                      "number",
+                      "null"
+                    ]
+                  },
+                  "street": {
+                    "type": [
+                      "number",
+                      "null"
+                    ]
+                  }
+                },
+                "required": [
+                  "street",
+                  "ehail"
+                ],
+                "type": "object"
+              },
+              "not_included": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "operator_name": {
+                "type": "string"
+              },
+              "per_km_aed": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              },
+              "provenance": {
+                "$ref": "#/$defs/Provenance"
+              },
+              "public_transport": {
+                "items": {
+                  "$ref": "#/$defs/PublicTransportFare"
+                },
+                "type": "array"
+              },
+              "sharjah_surcharge_aed": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              },
+              "sharjah_taxi_notice": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "street_hail_starting_aed": {
+                "items": {
+                  "$ref": "#/$defs/TaxiBand"
+                },
+                "type": "array"
+              },
+              "trip": {
+                "anyOf": [
+                  {
+                    "additionalProperties": false,
+                    "properties": {
+                      "booking": {
+                        "enum": [
+                          "street_day",
+                          "street_night",
+                          "ehail_offpeak",
+                          "ehail_peak",
+                          "ehail_night"
+                        ]
+                      },
+                      "distance_aed": {
+                        "type": "number"
+                      },
+                      "km": {
+                        "type": "number"
+                      },
+                      "minimum_aed": {
+                        "type": "number"
+                      },
+                      "minimum_applied": {
+                        "type": "boolean"
+                      },
+                      "starting_aed": {
+                        "type": "number"
+                      },
+                      "surcharge_aed": {
+                        "type": "number"
+                      },
+                      "to_sharjah": {
+                        "type": "boolean"
+                      },
+                      "total_aed": {
+                        "type": "number"
+                      },
+                      "wait_minutes": {
+                        "type": "number"
+                      },
+                      "waiting_aed": {
+                        "type": "number"
+                      }
+                    },
+                    "required": [
+                      "km",
+                      "booking",
+                      "wait_minutes",
+                      "to_sharjah",
+                      "starting_aed",
+                      "distance_aed",
+                      "waiting_aed",
+                      "surcharge_aed",
+                      "minimum_aed",
+                      "minimum_applied",
+                      "total_aed"
+                    ],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "waiting_per_minute_aed": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              }
+            },
+            "required": [
+              "operator_name",
+              "street_hail_starting_aed",
+              "ehail_starting_aed",
+              "per_km_aed",
+              "minimum_fare_aed",
+              "waiting_per_minute_aed",
+              "sharjah_surcharge_aed",
+              "trip",
+              "abu_dhabi",
+              "not_included",
+              "provenance"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "$ref": "#/$defs/TransportReferenceContext"
+      },
+      "data": {
+        "items": {
+          "$ref": "#/$defs/PublicTransportFare"
+        },
+        "type": "array"
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "$ref": "#/$defs/TransportReferenceContext"
+      },
+      "data": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "average_paid_per_hour": {
+                "additionalProperties": false,
+                "properties": {
+                  "all_zones_aed": {
+                    "type": [
+                      "number",
+                      "null"
+                    ]
+                  },
+                  "by_zone": {
+                    "items": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "aed": {
+                          "type": "number"
+                        },
+                        "previous_aed": {
+                          "type": [
+                            "number",
+                            "null"
+                          ]
+                        },
+                        "zones": {
+                          "type": "string"
+                        }
+                      },
+                      "required": [
+                        "zones",
+                        "aed",
+                        "previous_aed"
+                      ],
+                      "type": "object"
+                    },
+                    "type": "array"
+                  },
+                  "compared_with": {
+                    "type": "string"
+                  },
+                  "period": {
+                    "type": "string"
+                  },
+                  "previous_all_zones_aed": {
+                    "type": [
+                      "number",
+                      "null"
+                    ]
+                  },
+                  "what": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "period",
+                  "compared_with",
+                  "what",
+                  "by_zone",
+                  "all_zones_aed",
+                  "previous_all_zones_aed"
+                ],
+                "type": [
+                  "object",
+                  "null"
+                ]
+              },
+              "chargeable_hours": {
+                "items": {
+                  "$ref": "#/$defs/TimeRange"
+                },
+                "type": "array"
+              },
+              "effective_on": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "emirate": {
+                "enum": [
+                  "dubai",
+                  "abu_dhabi",
+                  "sharjah",
+                  "ajman",
+                  "umm_al_quwain",
+                  "ras_al_khaimah",
+                  "fujairah"
+                ]
+              },
+              "free_days": {
+                "type": "string"
+              },
+              "grand_events": {
+                "additionalProperties": false,
+                "properties": {
+                  "aed_per_hour": {
+                    "type": "number"
+                  },
+                  "hours": {
+                    "items": {
+                      "$ref": "#/$defs/TimeRange"
+                    },
+                    "type": "array"
+                  },
+                  "where": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "aed_per_hour",
+                  "hours",
+                  "where"
+                ],
+                "type": [
+                  "object",
+                  "null"
+                ]
+              },
+              "multi_storey": {
+                "additionalProperties": false,
+                "properties": {
+                  "aed_per_hour": {
+                    "type": "number"
+                  },
+                  "chargeable": {
+                    "type": "string"
+                  },
+                  "max_aed_over_8_hours_in_24": {
+                    "type": [
+                      "number",
+                      "null"
+                    ]
+                  }
+                },
+                "required": [
+                  "aed_per_hour",
+                  "chargeable",
+                  "max_aed_over_8_hours_in_24"
+                ],
+                "type": [
+                  "object",
+                  "null"
+                ]
+              },
+              "off_peak_hours": {
+                "items": {
+                  "$ref": "#/$defs/TimeRange"
+                },
+                "type": "array"
+              },
+              "operator_name": {
+                "type": "string"
+              },
+              "peak_hours": {
+                "items": {
+                  "$ref": "#/$defs/TimeRange"
+                },
+                "type": "array"
+              },
+              "posted_hourly_aed": {
+                "type": "null"
+              },
+              "posted_hourly_note": {
+                "type": "string"
+              },
+              "provenance": {
+                "$ref": "#/$defs/Provenance"
+              },
+              "seasonal_cards": {
+                "additionalProperties": false,
+                "properties": {
+                  "as_of": {
+                    "type": "string"
+                  },
+                  "options": {
+                    "items": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "option_id": {
+                          "type": "string"
+                        },
+                        "prices": {
+                          "items": {
+                            "additionalProperties": false,
+                            "properties": {
+                              "aed": {
+                                "type": "number"
+                              },
+                              "months": {
+                                "type": "integer"
+                              }
+                            },
+                            "required": [
+                              "months",
+                              "aed"
+                            ],
+                            "type": "object"
+                          },
+                          "type": "array"
+                        },
+                        "zones": {
+                          "type": "string"
+                        }
+                      },
+                      "required": [
+                        "option_id",
+                        "zones",
+                        "prices"
+                      ],
+                      "type": "object"
+                    },
+                    "type": "array"
+                  }
+                },
+                "required": [
+                  "as_of",
+                  "options"
+                ],
+                "type": [
+                  "object",
+                  "null"
+                ]
+              },
+              "zones": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "code": {
+                      "type": "string"
+                    },
+                    "kind": {
+                      "enum": [
+                        "on_street",
+                        "off_street"
+                      ]
+                    },
+                    "premium_code": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    }
+                  },
+                  "required": [
+                    "code",
+                    "kind",
+                    "premium_code"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "emirate",
+              "operator_name",
+              "effective_on",
+              "chargeable_hours",
+              "peak_hours",
+              "off_peak_hours",
+              "free_days",
+              "zones",
+              "posted_hourly_aed",
+              "posted_hourly_note",
+              "average_paid_per_hour",
+              "seasonal_cards",
+              "multi_storey",
+              "grand_events",
+              "provenance"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "$ref": "#/$defs/TransportReferenceContext"
+      },
+      "data": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "effective_on": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "emirate": {
+              "enum": [
+                "dubai",
+                "abu_dhabi",
+                "sharjah",
+                "ajman",
+                "umm_al_quwain",
+                "ras_al_khaimah",
+                "fujairah"
+              ]
+            },
+            "gate_count": {
+              "type": [
+                "integer",
+                "null"
+              ]
+            },
+            "gates_named": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "name": {
+                    "type": "string"
+                  },
+                  "opened_on": {
+                    "anyOf": [
+                      {
+                        "type": "string"
+                      },
+                      {
+                        "type": "null"
+                      }
+                    ]
+                  },
+                  "road": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  }
+                },
+                "required": [
+                  "name",
+                  "road",
+                  "opened_on"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "notes": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "notice": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "operator_id": {
+              "enum": [
+                "salik",
+                "darb"
+              ]
+            },
+            "operator_name": {
+              "type": "string"
+            },
+            "paused_since": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "provenance": {
+              "$ref": "#/$defs/Provenance"
+            },
+            "schedule": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "aed_per_crossing": {
+                    "type": "number"
+                  },
+                  "days": {
+                    "enum": [
+                      "mon_sat",
+                      "sun"
+                    ]
+                  },
+                  "hours": {
+                    "items": {
+                      "$ref": "#/$defs/TimeRange"
+                    },
+                    "type": "array"
+                  },
+                  "period": {
+                    "enum": [
+                      "peak",
+                      "off_peak",
+                      "late_night"
+                    ]
+                  }
+                },
+                "required": [
+                  "days",
+                  "period",
+                  "hours",
+                  "aed_per_crossing"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "status": {
+              "enum": [
+                "ok",
+                "paused"
+              ]
+            }
+          },
+          "required": [
+            "operator_id",
+            "operator_name",
+            "emirate",
+            "status",
+            "notice",
+            "paused_since",
+            "effective_on",
+            "gate_count",
+            "gates_named",
+            "schedule",
+            "notes",
+            "provenance"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "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"
+  }
+]

AddedOct 4, 2026

TDQS

C2.8/5.0

Behavior3/5

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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the description is not the sole carrier of safety information. It adds a useful caveat that these are tariff estimates, not app quotes, but says nothing about currency, source data, rate limits, or behavior when optional parameters like km or emirate are omitted.

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

Conciseness3/5

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

The description is front-loaded and contains no filler, but at roughly 14 words it is under-sized for a tool with 8 parameters and multiple enums. Conciseness is achieved at the expense of necessary detail.

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 need not be explained. However, for a tool with 8 parameters at 0% schema description coverage, many enum values such as street_day, ehail_peak, salik/darb, and to_sharjah are left unexplained. The description is not complete enough for correct invocation across modes.

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 8 parameters. The description only implicitly covers the four mode categories (taxi, public, parking, tolls) and does not explain km, booking, emirate, page_size, to_sharjah, operator_id, or wait_minutes. With low schema coverage, the description should compensate but does not.

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?

The description states a specific resource and scope: 'Taxi fare estimate, or metro/bus fares, parking and toll tariffs.' This clearly maps to the mode enum values. It does not name a sibling like commute_cost or costs_by_area, but 'Not app quotes' does narrow the scope.

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

Usage Guidelines2/5

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

The description gives no explicit when-to-use guidance versus siblings such as commute_cost, costs_by_area, or fuel_prices. 'Not app quotes' is a scope exclusion, not an alternative-selection rule. An agent must infer usage from the tool name and mode enum alone.

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

All Brainy Prices — UAE Cost of Living tools Inspect

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