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aadeshrao123

Unreal-MCP

by aadeshrao123

recompile_material

Recompiles and saves a material, returning success or failure status.

Instructions

Force recompile and save a material. Reports success/failure.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
material_pathYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, so description must cover behavior. It mentions 'force recompile' but doesn't disclose side effects (e.g., discarding unsaved changes), permission needs, or if it affects dependencies. Only mentions success/failure reporting.

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

Conciseness4/5

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

Very concise (one sentence) and front-loaded. However, it underspecifies important details, so it loses a point for not earning its place with sufficient information.

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?

Despite having one parameter and an output schema, the description lacks details about return value format, side effects, and error conditions. Completeness is low for a tool that performs a forced operation.

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?

Schema has 0% description coverage. The description does not explain what material_path means (e.g., full asset path, object name) or any format requirements.

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 'Force recompile and save a material', specifying the verb and resource. It distinguishes from sibling tools like compile_blueprint (different resource) and create_material (different action).

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?

No guidance on when to use this tool vs alternatives (e.g., save_all, build_material_graph) or what prerequisites are needed (e.g., material must already exist).

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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