add_material_comments

Add comment boxes to a material graph for organization.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aadeshrao123-unreal-mcp/add-material-comments.md

WHAT IT DOES

What add_material_comments does on Unreal-MCP

AI agents use add_material_comments 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.

RISK

Why add_material_comments is rated Medium

This tool creates metadata (comments) within a material editor that improve readability but do not alter material logic, rendering, or asset behavior. The action is fully reversible—comments can be removed or edited. It is Write category (creates/modifies data reversibly) rather than Execute because it does not run code or trigger effects beyond the editor UI.

From the tool's definition add_material_comments adds comment boxes to a material graph—a reversible modification that organizes existing content without executing code, deleting assets, or triggering external operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_material_comments 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 add_material_comments, this is the rule to start with:

add_material_comments Rate-limited

add_material_comments 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_material_comments": {
      "limits": [
        {
          "counter": "add_material_comments_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about add_material_comments

What does the add_material_comments tool do? +

Add comment boxes to a material graph for organization. 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.

How do I enforce a policy on add_material_comments? +

Register the Unreal MCP server in PolicyLayer and add a rule for add_material_comments: 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 add_material_comments? +

add_material_comments is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_material_comments? +

Yes. Add a rate_limit block to the add_material_comments 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 add_material_comments completely? +

Set action: deny in the PolicyLayer policy for add_material_comments. 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 add_material_comments? +

add_material_comments 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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