archimate_create_composite_element

THE RISK

Medium Risk

Why archimate_create_composite_element needs a policy

This tool creates new composite elements (groupings and locations) within an ArchiMate model, which modifies the model structure reversibly. A composite element can be deleted or modified, making this a Write operation rather than Destructive.

From the tool's definition Tool description states 'Create a composite element' - the verb 'create' indicates data creation. Combined with sibling tools like 'archimate_create_application_element', 'archimate_create_business_element', and 'archimate_create_model', this is clearly a…

Documented attack patterns abuse exactly the kind of access archimate_create_composite_element gives an agent:

POLICY

How to control archimate_create_composite_element

PolicyLayer is an MCP gateway — it sits between your AI agents and ArchiMate MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for archimate_create_composite_element:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "archimate_create_composite_element": {
      "limits": [
        {
          "counter": "archimate_create_composite_element_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

archimate_create_composite_element 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.

Create a free account and register ArchiMate MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More ArchiMate MCP Server tools

Destructive archimate_delete_element Delete an element and its associated relationships Destructive archimate_delete_relationship Delete a relationship Write archimate_add_connection_to_view Manually add a connection (line/arrow) between two diagram objects in a view. Normally unn Write archimate_add_to_view Add an element to a diagram view. Connections for relationships between this element and a Write archimate_configure_audit Configure audit logging for model operations Write archimate_create_application_element Create an Application layer element (Chapter 9). Use for application components, services, Write archimate_create_business_element Create a Business layer element (Chapter 8). Use for actors, processes, services, and busi Write archimate_create_implementation_element Create an Implementation & Migration layer element (Chapter 12). Use for work packages, de

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about archimate_create_composite_element

What does the archimate_create_composite_element tool do? +

Create a composite element (Chapter 4). Use for grouping and locations. It is categorised as a Write tool in the ArchiMate 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 archimate_create_composite_element? +

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

What risk level is archimate_create_composite_element? +

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

Can I rate-limit archimate_create_composite_element? +

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

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

archimate_create_composite_element is provided by the ArchiMate MCP Server MCP server (thijs-hakkenberg/archimate-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ArchiMate MCP Server tool call.

Start from ArchiMate MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →