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elemenopyunome

unreal-engine-mcp

introspect_unreal_class

Discover methods and properties of an Unreal Engine class, including docstrings, for API reference.

Instructions

List methods and properties of an unreal class, with its docstring.

e.g. 'EditorActorSubsystem', 'NiagaraSystem', 'LandscapeProxy', 'MovieSceneSequence', 'StaticMeshEditorSubsystem'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
class_nameYes
max_itemsNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations provided, so description carries burden. It describes the main behavior (listing methods/properties with docstring) but does not disclose potential performance implications, truncation via max_items, or error handling for nonexistent classes.

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?

Two clean sentences with examples. Front-loaded with action verb. No fluff.

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

Completeness3/5

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

Adequate for a low-complexity tool with output schema, but missing details about max_items truncation, error states (e.g., class not found), and relationship to sibling tools.

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

Parameters2/5

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

Schema description coverage is 0%, so description must compensate. It only indirectly hints at class_name via examples and does not explain max_items at all, leaving the agent guessing about its purpose and default behavior.

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?

Clearly states it lists methods and properties of an unreal class with docstring, and provides concrete examples. Distinguishes from sibling tools like search_unreal_classes.

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?

Implied usage via examples, but no explicit when-to-use or when-not-to-use compared to alternatives like search_unreal_classes. No prerequisites mentioned.

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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