block_set_attributes

A write tool on the AutoCAD MCP Pro MCP server.

SERVERAutoCAD MCP Pro SOURCEu-c4n/autocad-mcp

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/u-c4n-autocad-mcp/block-set-attributes.md

WHAT IT DOES

What block_set_attributes does on AutoCAD MCP Pro

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

RISK

Why block_set_attributes is rated Medium

This tool modifies existing block attributes in CAD drawings, which is a reversible write operation. It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely read data (Read).

From the tool's definition Tool name 'block_set_attributes' indicates modification of block attributes in AutoCAD drawings. Sibling tools like 'block_create_from_entities' and 'block_explode' confirm this server manipulates drawing entities.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

block_set_attributes Rate-limited

block_set_attributes 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": {
    "block_set_attributes": {
      "limits": [
        {
          "counter": "block_set_attributes_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 AutoCAD MCP Pro, apply this rule, and every block_set_attributes call is checked against it from then on.

FAQ

Questions about block_set_attributes

What does the block_set_attributes tool do? +

block_set_attributes is a write tool on the AutoCAD MCP Pro MCP server. It is categorised as a Write tool in the AutoCAD MCP Pro MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on block_set_attributes? +

Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for block_set_attributes: 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_set_attributes? +

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

Can I rate-limit block_set_attributes? +

Yes. Add a rate_limit block to the block_set_attributes 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_set_attributes completely? +

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

block_set_attributes 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.

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