apply_contam_sketchpad_layout · CONTAM MCP: Risk & Policy

WHAT IT DOES

What apply_contam_sketchpad_layout does on CONTAM MCP

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

WHY IT NEEDS A POLICY

Why apply_contam_sketchpad_layout needs a policy

This tool modifies project file contents (the SketchPad layout configuration) in a reversible way. It falls clearly into the Write category as it creates or modifies data that can be undone. While it affects how CONTAM projects are displayed, it does not execute dangerous operations, delete irreversible data, or trigger financial transactions.

From the tool's definition Tool description explicitly states 'add or replace' data in an existing .prj file. These are reversible modification operations on project files that alter visualization layouts without destroying data or executing simulations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_contam_sketchpad_layout Rate-limited

apply_contam_sketchpad_layout 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": {
    "apply_contam_sketchpad_layout": {
      "limits": [
        {
          "counter": "apply_contam_sketchpad_layout_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 CONTAM MCP, so you can run agents against it safely.

FAQ

Questions about apply_contam_sketchpad_layout

What does the apply_contam_sketchpad_layout tool do? +

Use this when you need to add or replace ContamW SketchPad icon layout data in an existing .prj so it opens with visible rooms, zone icons, airflow path icons, and source/sink icons. It is categorised as a Write tool in the CONTAM MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apply_contam_sketchpad_layout? +

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

What risk level is apply_contam_sketchpad_layout? +

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

Can I rate-limit apply_contam_sketchpad_layout? +

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

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

apply_contam_sketchpad_layout is provided by the CONTAM MCP server (summer521521/contam_plugin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.