superdesign_gallery

THE RISK

Medium Risk

Why superdesign_gallery needs a policy

This tool creates/generates an HTML gallery file, which is a Write operation (creating new content). It doesn't execute arbitrary code or destructively modify existing data, but it does produce a new artifact (HTML file) as output. The severity is medium because it writes files to the filesystem, though the impact is limited to gallery HTML generation.

From the tool's definition Generate an HTML gallery to view all designs in a browser

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

POLICY

How to control superdesign_gallery

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

policy.json

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

superdesign_gallery 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 Superdesign 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.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Superdesign MCP Server tools

Destructive superdesign_delete Delete a design file and update metadata Destructive superdesign_cleanup Clean up old design files based on age and count limits Execute superdesign_live_gallery Start a live gallery server with real-time updates and file watching Write superdesign_generate Returns design specifications for Claude Code to generate UI designs, wireframes, componen Read superdesign_check_files Check for file changes by comparing current files with a manifest (for gallery refresh int Read superdesign_extract_system Returns instructions for extracting design system from screenshot or image Read superdesign_iterate Returns iteration instructions based on existing design and feedback Read superdesign_list List all created designs in the workspace

All 9 Superdesign MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

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 superdesign_gallery

What does the superdesign_gallery tool do? +

Generate an HTML gallery to view all designs in a browser. It is categorised as a Write tool in the Superdesign 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 superdesign_gallery? +

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

What risk level is superdesign_gallery? +

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

Can I rate-limit superdesign_gallery? +

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

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

superdesign_gallery is provided by the Superdesign MCP Server MCP server (jonthebeef/superdesign-mcp-claude-code). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Superdesign MCP Server tool call.

Start from Superdesign 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 →