create_niagara_scratch_pad_module
A write tool on the Unreal- MCP server.
This record as markdown: /tools/aadeshrao123-unreal-mcp/create-niagara-scratch-pad-module.md
What create_niagara_scratch_pad_module does on Unreal-MCP
AI agents use create_niagara_scratch_pad_module to create or update resources in Unreal-MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unreal-MCP environment.
Why create_niagara_scratch_pad_module is rated Medium
This tool creates a new Niagara scratch pad module, which is a reversible write operation that modifies the VFX project state. It does not execute arbitrary code, delete data irreversibly, or move money. The medium severity reflects that an AI agent misusing this could create many unwanted VFX modules, cluttering the project, but changes are undoable.
From the tool's definition Tool name 'create_niagara_scratch_pad_module' indicates creation of a new module in Niagara VFX system. The 'create_' prefix signals data creation. Description is empty, limiting evidence specificity.
Attacks that exploit this kind of access
The rule that runs create_niagara_scratch_pad_module 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 create_niagara_scratch_pad_module, this is the rule to start with:
create_niagara_scratch_pad_module stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Unreal-MCP, apply this rule, and every create_niagara_scratch_pad_module call is checked against it from then on.
Questions about create_niagara_scratch_pad_module
create_niagara_scratch_pad_module is a write tool on the Unreal MCP server. It is categorised as a Write tool in the Unreal-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Unreal MCP server in PolicyLayer and add a rule for create_niagara_scratch_pad_module: 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.
create_niagara_scratch_pad_module is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_niagara_scratch_pad_module 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.
Set action: deny in the PolicyLayer policy for create_niagara_scratch_pad_module. 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.
create_niagara_scratch_pad_module 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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