mcp-server

Get Availability Updates

get_availability_updates

Read-only

Recently re-verified listings (price / availability / sale status), optionally since an ISO date. For agents keeping an inventory view fresh.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`since`	No	ISO date, e.g. 2026-06-01

Output Schema

TableJSON Schema

Name	Required	Description
`error`	No	Present only when the request could not be fulfilled.
`terms`	No	Acceptable-use and information-not-advice terms.
`source`	No	Attribution for the data.
`provider`	No	Always "Mirabello Consultancy".
`disclaimer`	No	Information, not legal/tax/financial/immigration advice; figures indicative.
`data_updated`	No	Date the underlying dataset was last updated.
`book_a_consultation`	No	URL to book a Mirabello consultation.

Schema Changelog

Changes observed during successful MCP inspections.

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 28, 2026

TDQS

A3.6/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds that the listings are 're-verified,' which gives a hint about data freshness but doesn't go beyond that. It doesn't mention pagination, ordering, or what happens when no updates exist, but with annotations covering safety and a simple read operation, this is adequate.

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?

The description is a single, efficient sentence that front-loads the core function ('Recently re-verified listings') and then states the optional filter. There is no fluff or redundant information; every word contributes to the meaning. This is a model of concise tool descriptions.

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 tool with one optional parameter and an output schema, the description covers the essential points: what is returned (listings with price/availability/sale status) and how to filter (since date). Since the output schema exists, the return format is not required in the description. The only minor gap is not mentioning that the result is a list, but that's implied. Overall, it is complete for the tool's simplicity.

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% since the only parameter 'since' is described as 'ISO date, e.g. 2026-06-01'. The description also mentions 'optionally since an ISO date,' reinforcing the parameter but adding no new semantics. Given high schema coverage, the baseline of 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?

The description clearly states the tool returns recently re-verified listings with price/availability/sale status, optionally filtered by a date. It uses a specific verb ('get') and resource ('availability updates'), making the purpose unambiguous. However, it does not explicitly differentiate from the sibling tool get_recent_changes, which could overlap in function, so it misses a point for sibling distinction.

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 phrase 'For agents keeping an inventory view fresh' gives a general usage context, implying this tool is useful when maintaining up-to-date inventory data. However, it provides no explicit guidance on when not to use it or how it compares to alternatives like get_recent_changes or subscribe_changes. The guidance is implied rather than direct.

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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