improve_component · MCP-Blender MCP: Risk & Policy

WHAT IT DOES

What improve_component does on MCP-Blender

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

WHY IT NEEDS A POLICY

Why improve_component needs a policy

This tool modifies an existing Blender component based on feedback, which is a reversible modification/update operation. It creates or alters existing 3D model data but does not irreversibly delete or destroy anything. Classified as Write since it updates existing data. Confidence is moderate because the description is vague and does not specify exact operations performed.

From the tool's definition Improve existing component based on feedback

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

improve_component Rate-limited

improve_component 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": {
    "improve_component": {
      "limits": [
        {
          "counter": "improve_component_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MCP-Blender, so you can run agents against it safely.

FAQ

Questions about improve_component

What does the improve_component tool do? +

Improve existing component based on feedback. It is categorised as a Write tool in the MCP-Blender MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on improve_component? +

Register the MCP-Blender MCP server in PolicyLayer and add a rule for improve_component: 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 MCP-Blender. Nothing to install.

What risk level is improve_component? +

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

Can I rate-limit improve_component? +

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

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

improve_component is provided by the MCP-Blender MCP server (shdann/mcp-blend). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.