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mckinsey

vizro-mcp

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by mckinsey

get_model_json_schema

Retrieve the JSON schema for a specified Vizro model by providing its name, enabling validation and configuration of model structures.

Instructions

Get the JSON schema for the specified Vizro model. Server Vizro version: 0.1.60

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
model_nameYesName of the Vizro model to get schema for (e.g., 'Card', 'Dashboard', 'Page')

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
model_nameYes
json_schemaYes
additional_infoYes
Behavior3/5

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

With no annotations, the description carries the burden of disclosing behavioral traits. It clearly indicates a read operation (no destructive side effects), but does not mention error behavior, rate limits, or permissions. It is adequate for a simple read tool.

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 extremely concise: two sentences, no fluff. It front-loads the purpose and adds a relevant version note. Every word earns its place.

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?

Given that an output schema exists (so return values are documented elsewhere) and the tool has only one parameter, the description covers the essential information. It lacks some depth on usage context, but is largely complete for a simple schema retrieval tool.

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?

The input schema covers all parameters with detailed descriptions (coverage 100%). The description adds no additional parameter information beyond the schema, which already explains the 'model_name' parameter with examples. Baseline 3 is appropriate.

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 uses a specific verb ('Get') and resource ('JSON schema') and distinguishes the tool from siblings like 'load_and_analyze_data' and 'validate_dashboard_config', which serve different purposes. The purpose is immediately clear.

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?

The description does not explicitly state when to use this tool vs. alternatives, nor does it provide any context on prerequisites or when not to use it. The mention of the server version is helpful but insufficient as guidance for selection.

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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