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aadeshrao123

Unreal-MCP

by aadeshrao123

reorder_niagara_emitter

Reorder emitters in a Niagara system by moving a specific emitter to a new index position in the emitter list.

Instructions

Move an emitter to a new position in the system's emitter list.

Args: system_path: Path to the Niagara System asset emitter_name: Name of the emitter to move new_index: Target index (0-based) in the emitter list

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
new_indexYes
system_pathYes
emitter_nameYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations exist, so the description carries full burden. It only states the operation without disclosing side effects (e.g., impact on emitter renderers, undo behavior, or effect on gameplay).

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 sentences of purpose plus a clean Args list. Every element is necessary and no redundancy. Front-loaded with the action verb 'Move'.

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

Completeness4/5

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

An output schema exists (as per context signals) but is not shown; the description does not mention return values. However, for a simple reorder operation, the provided info is largely sufficient. Minor gap.

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

Parameters4/5

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

Schema coverage is 0%, but the description includes an Args section explaining each parameter: system_path, emitter_name, and new_index (with note '0-based'). This adds meaning beyond the schema's type-only definitions.

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 'move' and the resource 'emitter to a new position in the system's emitter list', distinguishing it from sibling tools like reorder_niagara_module or remove_niagara_emitter.

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., reorder vs. remove/duplicate) is provided. Missing context such as prerequisites or typical use cases.

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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