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aadeshrao123

Unreal-MCP

by aadeshrao123

set_widget_properties

Update widget properties in Unreal Engine by specifying the widget blueprint, widget name, and property values.

Instructions

Set multiple widget properties. Same format as set_data_asset_properties.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
propertiesYes
widget_nameYes
widget_blueprint_pathYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It implies a write operation ('Set'), but does not disclose whether properties are merged, overwritten, or replaced, nor any prerequisites, permissions, or side effects. The reference to another tool is insufficient without its behavior being known.

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

Conciseness2/5

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

The description is extremely short (two sentences) but omits critical information needed for correct usage. While brevity is valued, under-specification reduces effectiveness. Each sentence does not earn its place; the second sentence is a vague reference rather than adding substantive guidance.

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

Completeness2/5

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

Given the tool's complexity (3 required parameters, no parameter descriptions, no annotations), the description is woefully incomplete. It does not explain parameter semantics, return value behavior (despite output schema existing, but not described), or any constraints. The agent is left without enough context to use the tool reliably.

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

Parameters1/5

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

The input schema has 0% description coverage, and the description adds no meaning to the parameters (properties, widget_name, widget_blueprint_path). The phrase 'Same format as set_data_asset_properties' does not clarify parameter semantics. This leaves the agent to guess the purpose of each parameter.

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 verb 'Set' and the resource 'widget properties', specifying 'multiple' to indicate bulk operation. It is not a tautology and distinguishes the tool as a widget-specific setter among many sibling set_* tools. However, it lacks specificity about the types of properties (e.g., layout, appearance) to fully differentiate from similar tools.

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 provides no guidance on when to use this tool over alternatives. It only mentions 'Same format as set_data_asset_properties', which is a format reference, not usage context. There are no explicit when-to-use, when-not-to-use, or alternative tool mentions, leaving the agent without decision support.

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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