list_collections

List all collections in the scene as a tree with their objects.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwgx-blender-copilot/list-collections.md

WHAT IT DOES

What list_collections does on Blender Copilot MCP Server

AI agents call list_collections to retrieve information from Blender Copilot MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_collections is rated Low

This tool retrieves and displays hierarchical information about existing collections and their objects in a Blender scene. It performs no data modifications, deletions, code execution, or external operations—only inspection and enumeration of scene structure, which is characteristic of Read category tools.

From the tool's definition Tool name 'list_collections' and description 'List all collections in the scene as a tree with their objects' indicate a query/retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

list_collections Allowed

list_collections is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_collections": {}
  }
}

ALLOW ONLY 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 list_collections call is checked against it from then on.

FAQ

Questions about list_collections

What does the list_collections tool do? +

List all collections in the scene as a tree with their objects. It is categorised as a Read tool in the Blender Copilot MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_collections? +

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

list_collections is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_collections? +

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

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

list_collections 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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