Mirabello Immigration Intelligence

Estimate Total Cost

estimate_total_cost

Read-onlyIdempotent

Estimate the total cost of a programme for a given family: investment + government & due-diligence fees + family add-ons. Indicative; excludes professional/property/legal fees.

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": "estimate_total_cost"
  }
}

Input Schema

Name	Required	Description
`adults`	No	main + spouse/adult applicants (default 1)
`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.
`children_16plus`	No	Number of dependent children aged 16 or over — usually priced higher than under-16s.
`children_under16`	No	Number of dependent children aged under 16 — priced separately by most Caribbean programmes.

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."

Changed6 schema fields changedSep 23, 2026

addedInput schema / properties / children_16plus / description

Added value: +"Number of dependent children aged 16 or over — usually priced higher than under-16s."

addedInput schema / properties / children_16plus / examples
```
Added value: +[
+  1
+]
```

addedInput schema / properties / children_under16 / description

Added value: +"Number of dependent children aged under 16 — priced separately by most Caribbean programmes."

addedInput schema / properties / children_under16 / examples
```
Added value: +[
+  1
+]
```

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"
+}

First observedJun 4, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is fully covered. The description adds genuinely non-structured behavioral context — that the result is indicative and omits professional, property and legal fees — which an agent needs in order to caveat any answer it gives.

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

Conciseness5/5

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

Two sentences: the first front-loads what is computed and its components, the second carries the disclaimer. No redundant restatement of the title or schema and nothing that could be cut.

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

Completeness4/5

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

With an output schema present, return values need no explanation, and annotations handle safety. What remains is the fee-component breakdown and the exclusion caveat, both stated. The one real gap is currency/assumption basis for the figures, which matters for a cost tool but is left unstated.

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 coverage is 100%, so programme_id, adults and both child brackets are fully documented in the schema. The description's 'family add-ons' phrasing loosely signals that adult/child counts drive the add-on portion, but adds no format, defaults or validation detail beyond the schema — baseline 3 applies.

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?

A specific verb ('Estimate') plus resource ('total cost of a programme') and the exact components included (investment + government & due-diligence fees + family add-ons). It is clear what the tool computes, but it never names its closest siblings (estimate_malta_passport_fee, compare_programmes), so an agent must infer the boundary itself.

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?

The 'Indicative; excludes professional/property/legal fees' clause effectively tells the agent when this number is and isn't sufficient, which is useful context. However, there is no explicit instruction on when to pick this over compare_programmes or the Malta-specific fee estimator; usage is only implied.

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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