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elemenopyunome

unreal-engine-mcp

compile_blueprint

Provide an asset path to compile a Blueprint asset. Use this to ensure your Blueprint is up-to-date without manual compilation.

Instructions

Compile a Blueprint asset by object path.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
asset_pathYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior1/5

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

No annotations are present, so the description must disclose behavioral traits. It does not describe side effects, error conditions, or what happens during compilation (e.g., overwriting logs). This is a severe omission.

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 but under-specified. While conciseness is valued, it sacrifices crucial information, making it inadequate for effective use.

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?

Despite having an output schema, the description does not mention return values. Given the complexity of a compile operation and missing schema details, the description is highly incomplete.

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?

With 0% schema coverage, the description must add meaning to the parameter. It only mentions 'object path' without specifying format, examples, or constraints, failing to compensate for the schema gap.

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 'Compile' and the resource 'Blueprint asset by object path', distinguishing it from sibling tools like build_lighting or cook_content. It is specific but could elaborate on what compilation entails.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives, such as other compilation or asset-related tools. There is no mention of prerequisites like asset existence or state.

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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