block_list

List all block definitions in the drawing (name, origin, attribute count, entity count).

SERVERAutoCAD MCP Pro SOURCEu-c4n/autocad-mcp

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/u-c4n-autocad-mcp/block-list.md

WHAT IT DOES

What block_list does on AutoCAD MCP Pro

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

RISK

Why block_list is rated Low

This tool retrieves and enumerates existing block definitions without creating, modifying, deleting, or executing any operations. It is a passive information-gathering operation with no blast radius if misused by an AI agent. The data returned is read-only metadata about the drawing structure.

From the tool's definition Tool name 'block_list' and description 'List all block definitions in the drawing' indicate a query/retrieval operation with no modification or side effects. Returns metadata: name, origin, attribute count, entity count.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs block_list safely

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

block_list Allowed

block_list 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": {
    "block_list": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AutoCAD MCP Pro, apply this rule, and every block_list call is checked against it from then on.

FAQ

Questions about block_list

What does the block_list tool do? +

List all block definitions in the drawing (name, origin, attribute count, entity count). It is categorised as a Read tool in the AutoCAD MCP Pro MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on block_list? +

Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for block_list: 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 AutoCAD MCP Pro. Nothing to install.

What risk level is block_list? +

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

Can I rate-limit block_list? +

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

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

block_list is provided by the AutoCAD MCP Pro MCP server (u-c4n/autocad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on AutoCAD MCP Pro, and thousands of servers like it.

This server

All 247 AutoCAD MCP Pro tools →

Across the catalogue

list_symbols on ACE-MCP →aiva_list_affiliates on AIVA MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →