Statistics Canada MCP Server

get_changed_cube_list

Get the list of data tables and cubes updated on a specific date. Provide a date in YYYY-MM-DD format to identify recent changes to Statistics Canada data.

Instructions

Get the list of data tables/cubes that were updated on a specific date (YYYY-MM-DD). Disables SSL Verification. Corresponds to: GET /getChangedCubeList/{date}

Returns: List[Dict[str, Any]]: A list of dictionaries describing changed cube objects.

IMPORTANT: In your final response to the user, you MUST cite the source of your data. For changed cubes, this means including the ProductId (pid) and Title.

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": {
      "date": "<date>"
    },
    "name": "get_changed_cube_list"
  }
}

Input Schema

Name	Required	Description	Default
`date`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.7.15Aug 6, 2026

TDQS

A4.2/5.0

Behavior4/5

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

The description discloses important behavioral traits including disabled SSL verification, the corresponding REST endpoint, and a mandatory citation requirement with ProductId and Title. With no annotations provided, this information is valuable for safe and correct use.

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 well-structured with a clear lead sentence, endpoint mapping, return type, and an important usage note. Every line contributes meaningful information without redundancy.

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 simple one-parameter GET tool, the description adequately covers the operation, return type, and data attribution requirements. It lacks explicit alternative guidance and error handling details, but is otherwise complete for the tool's complexity.

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

Parameters4/5

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

The schema only specifies a date string, while the description adds the required format (YYYY-MM-DD) and clarifies that the date refers to the update date. This compensates for the 0% schema coverage and provides essential context for the single parameter.

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

Purpose5/5

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

The description clearly states the tool retrieves a list of data tables/cubes that were updated on a specific date, using a specific verb and resource. The 'changed' qualifier distinguishes it from sibling tools like get_all_cubes_list and get_changed_series_list.

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 description implies usage for date-specific changed cubes but does not explicitly mention alternatives or when not to use this tool. There is no direct comparison with sibling tools such as get_all_cubes_list or get_changed_series_list.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.