Mirabello Immigration Intelligence

Find Trust Jurisdictions

find_trust_jurisdictions

Read-onlyIdempotent

Facts on trust and foundation regimes by jurisdiction (statute, CRS status, EU-list status), for succession and governance research. Not a recommendation, and no structure hides assets from tax authorities: CRS and FATCA reporting applies. Filter by vehicle. General information, not advice.

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": "find_trust_jurisdictions"
  }
}

Input Schema

Name	Required	Description
`limit`	No	Maximum results returned (default 15, up to 100). The list is ranked; total_matched gives the full count.
`vehicle`	No	trust or foundation
`strong_protection`	No	True to require strong asset-protection legislation.

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

addedInput schema / properties / limit

Added value: +{
+  "description": "Maximum results returned (default 15, up to 100). The list is ranked; total_matched gives the full count.",
+  "examples": [
+    15
+  ],
+  "maximum": 100,
+  "minimum": 1,
+  "type": "integer"
+}

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."

Changed1 schema field changedSep 23, 2026
- addedInput schema / properties / strong_protection / description
```
Added value: +"True to require strong asset-protection legislation."
```

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"
+}

AddedJun 27, 2026

TDQS

A3.6/5.0

Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds genuinely useful context beyond that: the tool is informational only, is not a recommendation, and that CRS/FATCA reporting applies regardless of structure — framing that matters for how an agent presents results. It does not describe ranking or pagination behavior, but the output schema covers the return shape.

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 purpose is front-loaded in the first clause, which is good. However the tail is disclaimer padding, and 'Not a recommendation' and 'General information, not advice' are near-duplicates that could be collapsed into one clause, making the description longer than its informational content warrants.

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?

For a read-only, three-parameter lookup with a full output schema and complete annotation coverage, the description supplies the essential frame: what data fields are returned and the compliance caveat that structures do not avoid reporting. Only the ranking behavior and sibling routing are left implicit.

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%, so limit, vehicle, and strong_protection are already documented in structured form. The description only adds 'Filter by vehicle', which restates the schema, and says nothing about strong_protection or the ranked list semantics beyond what the schema already explains. Baseline 3 is appropriate.

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 a specific verb and resource: 'Facts on trust and foundation regimes by jurisdiction', and enumerates the fields covered (statute, CRS status, EU-list status). It differentiates broadly from sibling tools like get_foundation_rules or find_charity_jurisdictions by naming the jurisdiction-comparison angle and the trust/foundation vehicle filter, though it never references a sibling by name.

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?

'For succession and governance research' implies the intended context, and 'Filter by vehicle' hints at narrowing. But there is no explicit when-to-use versus when-not, and no pointer to the adjacent tools (get_foundation_rules, find_charity_jurisdictions, choice_of_law_options) that an agent must choose between.

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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