create_cone

A write tool on the Aos MCP server.

SERVERAos SOURCE@hybridlabor-api/aos

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/hybridlabor-api-aos/create-cone.md

WHAT IT DOES

What create_cone does on Aos

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

RISK

Why create_cone is rated Medium

The tool creates a cone geometry in FreeCAD, which is a reversible Write operation (new geometry can be deleted/undone). It does not execute arbitrary code, delete existing data irreversibly, or move money. Severity is medium because unintended 3D models could be created in a design file, but the effect is reversible.

From the tool's definition Tool name 'create_cone' with sibling tools like 'add_sketch_arc', 'add_sketch_circle', 'add_sketch_line', 'add_sketch_point', 'add_sketch_polygon' all creating geometric primitives in FreeCAD. This creates new 3D model data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_cone safely

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

create_cone Rate-limited

create_cone 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_cone": {
      "limits": [
        {
          "counter": "create_cone_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 Aos, apply this rule, and every create_cone call is checked against it from then on.

FAQ

Questions about create_cone

What does the create_cone tool do? +

create_cone is a write tool on the Aos MCP server. It is categorised as a Write tool in the Aos 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_cone? +

Register the Aos MCP server in PolicyLayer and add a rule for create_cone: 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 Aos. Nothing to install.

What risk level is create_cone? +

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

Can I rate-limit create_cone? +

Yes. Add a rate_limit block to the create_cone 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_cone completely? +

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

create_cone is provided by the Aos MCP server (@hybridlabor-api/aos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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