update_element · Mcp Archimate MCP: Risk & Policy

WHAT IT DOES

What update_element does on Mcp Archimate

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

WHY IT NEEDS A POLICY

Why update_element needs a policy

The tool modifies existing enterprise architecture model elements in a reversible manner. While it changes data, it does not permanently delete or destroy information, and does not execute arbitrary code or handle financial transactions.

From the tool's definition Tool description states 'Met à jour un élément ArchiMate existant' (Updates an existing ArchiMate element), with 'Seuls les champs fournis sont modifiés' (Only provided fields are modified). This is a reversible modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_element Rate-limited

update_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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Archimate, so you can run agents against it safely.

FAQ

Questions about update_element

What does the update_element tool do? +

Met à jour un élément ArchiMate existant. Seuls les champs fournis sont modifiés. It is categorised as a Write tool in the Mcp Archimate MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_element? +

Register the Mcp Archimate MCP server in PolicyLayer and add a rule for update_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 Mcp Archimate. Nothing to install.

What risk level is update_element? +

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

Can I rate-limit update_element? +

Yes. Add a rate_limit block to the update_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 update_element completely? +

Set action: deny in the PolicyLayer policy for update_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 update_element? +

update_element is provided by the Mcp Archimate MCP server (lacrif/mcp-archimate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

update_element is one line of Mcp Archimate's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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