Mirabello Immigration Intelligence

Check Visa-Free Access

check_visa_free

Read-onlyIdempotent

Mobility for a programme passport: visa-free count and access to key destinations (Schengen, UK, USA, China).

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "programme_id": "<programme_id>"
    },
    "name": "check_visa_free"
  }
}

Input Schema

Name	Required	Description	Default
`destination`	No	optional: check access to a specific destination (e.g. Schengen, UK, USA, China)
`programme_id`	Yes	Programme id as returned by list_programmes (e.g. "st-kitts-cbi") or an unambiguous name ("St Kitts"); an ambiguous name returns the candidates.

Output Schema

Name	Required	Description	Default
`error`	No
`terms`	No
`source`	No
`book_url`	No
`provider`	No
`disclaimer`	No
`data_updated`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed9 schema fields changedOct 25, 2026

changedInput schema / properties / programme_id / description

Previous value: -"Programme id as returned by list_programmes (e.g. \"st-kitts-cbi\"). Not a country name and not a website slug."New value: +"Programme id as returned by list_programmes (e.g. \"st-kitts-cbi\") or an unambiguous name (\"St Kitts\"); an ambiguous name returns the candidates."

changedOutput schema / description

Previous value: -"Mirabello response envelope. Tool-specific fields vary; the provenance/disclaimer envelope is always present."New value: +"Mirabello envelope; tool fields vary; error only on failure."

removedOutput schema / properties / book_url / description

Removed value: -"Link to request a consultation with a Mirabello specialist, for a personal case."

removedOutput schema / properties / data_updated / description

Removed value: -"Date the underlying dataset was last updated."

removedOutput schema / properties / disclaimer / description

Removed value: -"Information, not legal/tax/financial/immigration advice; figures indicative."

removedOutput schema / properties / error / description

Removed value: -"Present only when the request could not be fulfilled."

removedOutput schema / properties / provider / description
```
Removed value: -"Always \"Mirabello Consultancy\"."
```

removedOutput schema / properties / source / description

Removed value: -"Attribution for the data, when it is not Mirabello Consultancy itself."

removedOutput schema / properties / terms / description

Removed value: -"Acceptable-use and information-not-advice terms."

Changed3 schema fields changedOct 8, 2026

removedOutput schema / properties / book_a_consultation

Removed value: -{
-  "description": "URL to book a Mirabello consultation.",
-  "type": "string"
-}

addedOutput schema / properties / book_url

Added value: +{
+  "description": "Link to request a consultation with a Mirabello specialist, for a personal case.",
+  "type": "string"
+}

changedOutput schema / properties / source / description

Previous value: -"Attribution for the data."New value: +"Attribution for the data, when it is not Mirabello Consultancy itself."

Changed2 schema fields changedSep 23, 2026

addedInput schema / properties / programme_id / description

Added value: +"Programme id as returned by list_programmes (e.g. \"st-kitts-cbi\"). Not a country name and not a website slug."

addedInput schema / properties / programme_id / examples
```
Added value: +[
+  "st-kitts-cbi"
+]
```

Changed1 schema field changedJul 27, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "description": "Mirabello response envelope. Tool-specific fields vary; the provenance/disclaimer envelope is always present.",
+  "properties": {
+    "book_a_consultation": {
+      "description": "URL to book a Mirabello consultation.",
+      "type": "string"
+    },
+    "data_updated": {
+      "description": "Date the underlying dataset was last updated.",
+      "type": "string"
+    },
+    "disclaimer": {
+      "description": "Information, not legal/tax/financial/immigration advice; figures indicative.",
+      "type": "string"
+    },
+    "error": {
+      "description": "Present only when the request could not be fulfilled.",
+      "type": "string"
+    },
+    "provider": {
+      "description": "Always \"Mirabello Consultancy\".",
+      "type": "string"
+    },
+    "source": {
+      "description": "Attribution for the data.",
+      "type": "string"
+    },
+    "terms": {
+      "description": "Acceptable-use and information-not-advice terms.",
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

Changed1 schema field changedJun 10, 2026

addedInput schema / properties / destination

Added value: +{
+  "description": "optional: check access to a specific destination (e.g. Schengen, UK, USA, China)",
+  "type": "string"
+}

First observedJun 4, 2026

TDQS

C2.7/5.0

Behavior2/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, openWorldHint=false, so the safety profile is fully covered elsewhere. The description adds nothing further: it doesn't say whether the count is a total or filtered by the destination argument, nor how the two response modes interact. It does not contradict the annotations, but it contributes almost no behavioral context.

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?

A single tight sentence with no filler, and the key result ('visa-free count') appears early. It is slightly under-specified rather than over-long, which is the right direction for conciseness.

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 and annotations cover the safety profile, so much of the burden is lifted. Still, a tool with an optional destination parameter and a sibling dedicated to listing destinations should say what changes when destination is omitted versus supplied; that distinction is left to inference.

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

Parameters3/5

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

Schema description coverage is 100% and both parameters are documented in the schema, including the programme_id lookup path and the ambiguity-resolves-to-candidates behavior. The description only echoes the destination examples ('Schengen, UK, USA, China') that the schema already gives, so baseline 3 applies.

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

Purpose3/5

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

The description names the resource (visa-free access for a programme passport) and the shape of the answer (a count plus access to key destinations), so the intent is inferable. But it opens with the vague noun phrase 'Mobility for a programme passport' rather than a verb, and it never distinguishes itself from close siblings such as check_visa_requirement, list_visa_free_destinations, or get_mobility_optionality.

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 call this versus the many adjacent tools – notably check_visa_requirement (likely per-destination rules) and list_visa_free_destinations (likely the full list). The parenthetical destination examples hint at a use case but stop short of stating a selection condition.

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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