remove_niagara_user_parameter

Remove a user parameter from a Niagara System.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aadeshrao123-unreal-mcp/remove-niagara-user-parameter.md

WHAT IT DOES

What remove_niagara_user_parameter does on Unreal-MCP

AI agents call remove_niagara_user_parameter to permanently remove resources in Unreal-MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why remove_niagara_user_parameter is rated Critical

Removing a user parameter from a Niagara System deletes that parameter's definition and any associated data. This action cannot be easily undone through the same tool and constitutes an irreversible modification, placing it in the Destructive category. Misuse by an AI agent could break Niagara VFX systems that depend on that parameter, with high blast radius in a production project.

From the tool's definition 'Remove a user parameter from a Niagara System' — removing a parameter is an irreversible deletion of configuration data from the VFX system

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs remove_niagara_user_parameter safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Unreal-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For remove_niagara_user_parameter, this is the rule to start with:

remove_niagara_user_parameter Hidden

remove_niagara_user_parameter is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_niagara_user_parameter"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Unreal-MCP, apply this rule, and every remove_niagara_user_parameter call is checked against it from then on.

FAQ

Questions about remove_niagara_user_parameter

What does the remove_niagara_user_parameter tool do? +

Remove a user parameter from a Niagara System. It is categorised as a Destructive tool in the Unreal-MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on remove_niagara_user_parameter? +

Register the Unreal MCP server in PolicyLayer and add a rule for remove_niagara_user_parameter: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Unreal-MCP. Nothing to install.

What risk level is remove_niagara_user_parameter? +

remove_niagara_user_parameter is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit remove_niagara_user_parameter? +

Yes. Add a rate_limit block to the remove_niagara_user_parameter rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block remove_niagara_user_parameter completely? +

Set action: deny in the PolicyLayer policy for remove_niagara_user_parameter. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides remove_niagara_user_parameter? +

remove_niagara_user_parameter is provided by the Unreal MCP server (aadeshrao123/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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