Brainy Prices — UAE Cost of Living

residence_visas

Read-onlyIdempotent

UAE residence visas by route: payer, requirements, fees, medical/insurance bands.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "residence_visas"
  }
}

Input Schema

Name	Required	Description	Default
`route_id`	No
`page_size`	No
`include_common_fees`	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"
```

Changed16 schema fields changedOct 6, 2026

removedInput schema / properties / route_id / type
```
Removed value: -"string"
```

removedOutput schema / $defs / Fee

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "alternative_id": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "amount_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "amount_max_aed": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "fee_id": {
-      "type": "string"
-    },
-    "optional": {
-      "type": "boolean"
-    },
-    "percent": {
-      "type": [
-        "number",
-        "null"
-      ]
-    },
-    "quote": {
-      "type": "string"
-    },
-    "when": {
-      "type": [
-        "string",
-        "null"
-      ]
-    }
-  },
-  "required": [
-    "fee_id",
-    "quote",
-    "amount_aed",
-    "amount_max_aed",
-    "percent",
-    "when",
-    "alternative_id",
-    "optional"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / FeeCard / properties / fees / items / $ref
```
Removed value: -"#/$defs/Fee"
```
addedOutput schema / $defs / FeeCard / properties / fees / items / additionalProperties
```
Added value: +false
```

addedOutput schema / $defs / FeeCard / properties / fees / items / properties

Added value: +{
+  "alternative_id": {
+    "anyOf": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ]
+  },
+  "amount_aed": {
+    "type": [
+      "number",
+      "null"
+    ]
+  },
+  "amount_max_aed": {
+    "type": [
+      "number",
+      "null"
+    ]
+  },
+  "fee_id": {
+    "type": "string"
+  },
+  "optional": {
+    "type": "boolean"
+  },
+  "percent": {
+    "type": [
+      "number",
+      "null"
+    ]
+  },
+  "quote": {
+    "type": "string"
+  },
+  "when": {
+    "type": [
+      "string",
+      "null"
+    ]
+  }
+}

addedOutput schema / $defs / FeeCard / properties / fees / items / required

Added value: +[
+  "fee_id",
+  "quote",
+  "amount_aed",
+  "amount_max_aed",
+  "percent",
+  "when",
+  "alternative_id",
+  "optional"
+]

addedOutput schema / $defs / FeeCard / properties / fees / items / type
```
Added value: +"object"
```

removedOutput schema / $defs / ResidenceFeeItem

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "authority": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "card": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/FeeCard"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "item_id": {
-      "type": "string"
-    },
-    "paused_since": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "provenance": {
-      "$ref": "#/$defs/Provenance"
-    },
-    "status": {
-      "enum": [
-        "ok",
-        "paused"
-      ],
-      "type": "string"
-    },
-    "title": {
-      "type": "string"
-    },
-    "url": {
-      "type": [
-        "string",
-        "null"
-      ]
-    }
-  },
-  "required": [
-    "item_id",
-    "title",
-    "status",
-    "authority",
-    "url",
-    "paused_since",
-    "card",
-    "provenance"
-  ],
-  "type": "object"
-}

removedOutput schema / $defs / ResidenceFeeItemListResponse

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

removedOutput schema / $defs / ResidenceRoute / properties / paused_steps / items / properties / step_id / type
```
Removed value: -"string"
```
removedOutput schema / $defs / ResidenceRoute / properties / payer / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
removedOutput schema / $defs / ResidenceRoute / properties / route_id / type
```
Removed value: -"string"
```

removedOutput schema / $defs / ResidenceRouteListResponse

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

removedOutput schema / $defs / ResidenceRouteResponse

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "context": {
-      "$ref": "#/$defs/ResidenceContext"
-    },
-    "data": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/ResidenceRoute"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "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/ResidenceRouteListResponse"
-  },
-  {
-    "$ref": "#/$defs/ResidenceRouteResponse"
-  },
-  {
-    "$ref": "#/$defs/ResidenceFeeItemListResponse"
-  },
-  {
-    "$ref": "#/$defs/ToolFailure"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "anyOf": [
+          {
+            "$ref": "#/$defs/ResidenceContext"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "data": {
+        "items": {
+          "$ref": "#/$defs/ResidenceRoute"
+        },
+        "type": "array"
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "context",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "$ref": "#/$defs/ResidenceContext"
+      },
+      "data": {
+        "anyOf": [
+          {
+            "$ref": "#/$defs/ResidenceRoute"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "required": [
+      "meta",
+      "data",
+      "links"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "anyOf": [
+          {
+            "$ref": "#/$defs/ResidenceContext"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "data": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "authority": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "card": {
+              "anyOf": [
+                {
+                  "$ref": "#/$defs/FeeCard"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "item_id": {
+              "type": "string"
+            },
+            "paused_since": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "provenance": {
+              "$ref": "#/$defs/Provenance"
+            },
+            "status": {
+              "enum": [
+                "ok",
+                "paused"
+              ]
+            },
+            "title": {
+              "type": "string"
+            },
+            "url": {
+              "type": [
+                "string",
+                "null"
+              ]
+            }
+          },
+          "required": [
+            "item_id",
+            "title",
+            "status",
+            "authority",
+            "url",
+            "paused_since",
+            "card",
+            "provenance"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "links": {
+        "$ref": "#/$defs/Links"
+      },
+      "meta": {
+        "$ref": "#/$defs/ResponseMeta"
+      }
+    },
+    "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"
+  }
+]

AddedOct 4, 2026

TDQS

B3/5.0

Behavior3/5

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

Annotations already establish that this is a read-only, idempotent, non-destructive lookup, so the description need not restate safety. It adds useful scope by listing the visa data dimensions, but says nothing about pagination, default behavior when no route is supplied, or how fees are included.

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?

The description is a single front-loaded sentence with no waste. It is appropriately terse, though that terseness contributes to the gaps in parameter and usage guidance.

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

Completeness3/5

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, and annotations cover the safety profile. However, with three optional parameters at 0% schema coverage, the description should do more to explain route selection, pagination, and fee inclusion before an agent can call it confidently.

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%, so the description must compensate for all three parameters. It hints that route_id selects a visa route and that fees are part of the data, but it never explains page_size, include_common_fees, or what happens when route_id is omitted.

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 names a specific resource, UAE residence visas, and states the data dimensions covered: payer, requirements, fees, and medical/insurance bands. It implies retrieval by route but does not use an explicit verb or differentiate from any sibling tool.

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?

There is no guidance on when to use this tool versus alternatives, nor any stated prerequisites or exclusions. The phrase 'by route' hints that route selection matters, but the agent must infer usage entirely.

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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