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aadeshrao123

Unreal-MCP

by aadeshrao123

remove_niagara_script_parameter

Removes a named input or output parameter from a Niagara script. Specify the parameter name and direction to modify VFX scripts.

Instructions

Remove a named input or output parameter from a Niagara script.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
directionNooutput
module_nameNo
script_pathNo
system_pathNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are present, so the description carries full burden. It only states the removal action without disclosing side effects (e.g., impact on connections, undoability, permissions). The tool has an output schema, but its details are not in the description.

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 a single sentence with no fluff, but it is too short to convey necessary information. It could be expanded without losing conciseness.

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 complexity, zero annotations, and lack of parameter explanations, the description is insufficient. It does not clarify the relationship between module_name, script_path, and system_path, nor does it help distinguish from similar removal tools.

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 description coverage is 0%, and the description does not explain any of the 5 parameters (e.g., name, direction, module_name). It fails to add meaning beyond the schema, leaving the agent uninformed about parameter usage.

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 the verb 'Remove' and the resource 'named input or output parameter from a Niagara script', effectively differentiating it from siblings like 'remove_niagara_user_parameter' and 'remove_niagara_custom_hlsl_pin'.

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 is provided on when to use this tool versus alternatives such as 'remove_niagara_user_parameter' or other removal tools. The description lacks context for selection.

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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