generate_style_guide · Stitch MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_style_guide does on Stitch MCP Server

AI agents use generate_style_guide 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_style_guide needs a policy

This tool creates new design documentation (a style guide screen) from existing design data. It is a content creation operation that modifies the design system documentation but remains reversible—the generated guide can be regenerated, updated, or deleted without permanent data loss. It does not execute code, delete data, or move resources. Therefore it is categorized as Write rather than Execute or Destructive.

From the tool's definition Tool generates and creates a comprehensive style guide documentation screen; the action verb 'Generates' combined with 'Creates a visual reference' indicates content creation that is reversible and non-destructive.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_style_guide Rate-limited

generate_style_guide 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_style_guide": {
      "limits": [
        {
          "counter": "generate_style_guide_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_style_guide

What does the generate_style_guide tool do? +

Generates a comprehensive style guide / design documentation screen from an existing design. Creates a visual reference of colors, typography, components, and usage guidelines. 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_style_guide? +

Register the Stitch MCP Server MCP server in PolicyLayer and add a rule for generate_style_guide: 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_style_guide? +

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

Can I rate-limit generate_style_guide? +

Yes. Add a rate_limit block to the generate_style_guide 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_style_guide completely? +

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

generate_style_guide 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.