create_detail_line

A write tool on the Revit MCP server.

SERVERRevit MCP Server SOURCEdemolinator/revit-mcp-server

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/demolinator-revit-mcp-server/create-detail-line.md

WHAT IT DOES

What create_detail_line does on Revit MCP Server

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

RISK

Why create_detail_line is rated Medium

The 'create_' prefix combined with 'detail_line' (a standard Revit modeling element) indicates this tool creates or adds new geometry/annotations to a Revit project. This is a reversible Write operation—detail lines can be deleted or modified after creation, unlike destructive operations.

From the tool's definition Tool name 'create_detail_line' indicates creation of a new element (detail line) in Revit. Sibling tools like 'create_duct', 'create_grid', 'create_level' and 'create_dimensions' all create model elements. Tool description is empty, which limits specificity.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_detail_line safely

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

create_detail_line Rate-limited

create_detail_line 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": {
    "create_detail_line": {
      "limits": [
        {
          "counter": "create_detail_line_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 Revit MCP Server, apply this rule, and every create_detail_line call is checked against it from then on.

FAQ

Questions about create_detail_line

What does the create_detail_line tool do? +

create_detail_line is a write tool on the Revit MCP Server MCP server. It is categorised as a Write tool in the Revit 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 create_detail_line? +

Register the Revit MCP Server MCP server in PolicyLayer and add a rule for create_detail_line: 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 Revit MCP Server. Nothing to install.

What risk level is create_detail_line? +

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

Can I rate-limit create_detail_line? +

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

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

create_detail_line is provided by the Revit MCP Server MCP server (demolinator/revit-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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