merge_by_distance

Merge vertices that are closer than the threshold distance.

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/merge-by-distance.md

WHAT IT DOES

What merge_by_distance does on Blender Copilot MCP Server

AI agents use merge_by_distance 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 merge_by_distance is rated Medium

This tool modifies 3D geometry in Blender by merging vertices, which is a reversible change to the model structure. It is categorized as Write rather than Execute because the operation is a direct data modification with predictable, localized effects constrained to mesh topology, not arbitrary code execution.

From the tool's definition Tool name 'merge_by_distance' and description 'Merge vertices that are closer than the threshold distance' indicate modification of mesh geometry by combining vertices based on a proximity threshold.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

merge_by_distance Rate-limited

merge_by_distance 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": {
    "merge_by_distance": {
      "limits": [
        {
          "counter": "merge_by_distance_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 merge_by_distance call is checked against it from then on.

FAQ

Questions about merge_by_distance

What does the merge_by_distance tool do? +

Merge vertices that are closer than the threshold distance. 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 merge_by_distance? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for merge_by_distance: 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 merge_by_distance? +

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

Can I rate-limit merge_by_distance? +

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

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

merge_by_distance 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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