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aadeshrao123

Unreal-MCP

by aadeshrao123

get_actor_material_info

Get material slot info for a level actor, revealing which materials are assigned to each slot.

Instructions

Get material slot info for a level actor.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actor_nameYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior1/5

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

No annotations are provided, so the description must carry the full behavioral disclosure burden. It fails to mention whether the tool is read-only, what happens if the actor has no material slots, error handling, or output format. This is a significant gap.

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

Conciseness3/5

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

The description is very concise (one sentence) and front-loaded with the key action. However, it is too sparse and does not include useful details, making it minimally acceptable rather than efficiently informative.

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

Completeness1/5

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

Given that an output schema exists but no annotations, the description should explain the nature of the returned info (e.g., list of slot names, material assignments) and any prerequisites. It completely lacks this context, leaving the agent underinformed.

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 one parameter 'actor_name' with no description, and the schema description coverage is 0%. The description does not add any meaning to this parameter beyond its name, so the agent has no guidance on what value to provide.

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 uses a specific verb ('Get') and resource ('material slot info for a level actor'), which clearly indicates the tool's purpose. It distinguishes from sibling tools like 'get_blueprint_material_info' or 'get_available_materials' by focusing on a level actor's material slots. However, 'material slot info' is somewhat vague and could be more precise.

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 versus alternatives. There are many sibling tools related to materials and actors, and without context, an agent may struggle to choose correctly.

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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