generate_design_tokens · Stitch MCP Server MCP

WHAT IT DOES

What generate_design_tokens does on Stitch MCP Server

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

WHY IT NEEDS A POLICY

Why generate_design_tokens needs a policy

This tool creates new design token files/outputs in various formats (CSS variables, Tailwind config, SCSS, JSON) based on screen analysis. This is a reversible data creation operation (Write category). Severity is medium because generated tokens could be exported and integrated into production systems, but the operation itself is non-destructive and can be corrected or regenerated.

From the tool's definition Tool 'generates design tokens' - explicitly creates/produces new artifacts (CSS variables, Tailwind config, SCSS, or JSON) from input screen data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_design_tokens Rate-limited

generate_design_tokens 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": {
    "generate_design_tokens": {
      "limits": [
        {
          "counter": "generate_design_tokens_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 Stitch MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_design_tokens

What does the generate_design_tokens tool do? +

Generates design tokens (CSS variables, Tailwind config, SCSS, or JSON) from a screen. It is categorised as a Write tool in the Stitch 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 generate_design_tokens? +

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

What risk level is generate_design_tokens? +

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

Can I rate-limit generate_design_tokens? +

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

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

generate_design_tokens is provided by the Stitch MCP Server MCP server (oogleyskr/stitch-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.