viewport_set_overlays

A write tool on the Blender Copilot MCP server.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

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/dwgx-blender-copilot/viewport-set-overlays.md

WHAT IT DOES

What viewport_set_overlays does on Blender Copilot MCP Server

AI agents use viewport_set_overlays to create or update resources in Blender Copilot MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Blender Copilot MCP Server environment.

RISK

Why viewport_set_overlays is rated Medium

An AI agent can call viewport_set_overlays faster than any human can review: one bad instruction and it creates or modifies resources in Blender Copilot MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs viewport_set_overlays safely

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

viewport_set_overlays Rate-limited

viewport_set_overlays 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": {
    "viewport_set_overlays": {
      "limits": [
        {
          "counter": "viewport_set_overlays_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 Blender Copilot MCP Server, apply this rule, and every viewport_set_overlays call is checked against it from then on.

FAQ

Questions about viewport_set_overlays

What does the viewport_set_overlays tool do? +

viewport_set_overlays is a write tool on the Blender Copilot MCP Server MCP server. It is categorised as a Write tool in the Blender Copilot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on viewport_set_overlays? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for viewport_set_overlays: 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 Blender Copilot MCP Server. Nothing to install.

What risk level is viewport_set_overlays? +

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

Can I rate-limit viewport_set_overlays? +

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

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

viewport_set_overlays is provided by the Blender Copilot MCP Server MCP server (dwgx/blender-copilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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