set_snapping · Blender MCP: Risk & Policy

WHAT IT DOES

What set_snapping does on BlenderMCP

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

WHY IT NEEDS A POLICY

Why set_snapping needs a policy

Based on the name alone, this tool likely modifies Blender's snapping configuration (a scene/viewport setting). This is a reversible write/configuration change with low blast radius. Confidence is low due to empty description.

From the tool's definition Tool name 'set_snapping' suggests configuring snapping settings in Blender; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_snapping Rate-limited

set_snapping 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": {
    "set_snapping": {
      "limits": [
        {
          "counter": "set_snapping_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 BlenderMCP, so you can run agents against it safely.

FAQ

Questions about set_snapping

What does the set_snapping tool do? +

set_snapping. It is categorised as a Write tool in the BlenderMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_snapping? +

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

What risk level is set_snapping? +

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

Can I rate-limit set_snapping? +

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

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

set_snapping is provided by the Blender MCP server (shirshovdim/retopoflow_blender_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.