create_theme

Create a new theme

SERVERShopify Graphql SOURCEuvu-store/shopify-graphql-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/uvu-store-shopify-graphql-mcp/create-theme.md

WHAT IT DOES

What create_theme does on Shopify Graphql

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

RISK

Why create_theme is rated Medium

Creating a theme modifies the store's configuration by adding a new asset, but the operation is reversible and does not delete or overwrite existing data (thus not Destructive), does not execute arbitrary code (thus not Execute), and does not involve financial transactions (thus not Financial).

From the tool's definition Tool name 'create_theme' and description 'Create a new theme' indicate the tool creates new data (a theme) in a Shopify store. This is a reversible write operation—themes can be modified or deleted afterward.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_theme safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Shopify Graphql, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_theme, this is the rule to start with:

create_theme Rate-limited

create_theme 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": {
    "create_theme": {
      "limits": [
        {
          "counter": "create_theme_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Shopify Graphql, apply this rule, and every create_theme call is checked against it from then on.

FAQ

Questions about create_theme

What does the create_theme tool do? +

Create a new theme. It is categorised as a Write tool in the Shopify Graphql MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_theme? +

Register the Shopify Graphql MCP server in PolicyLayer and add a rule for create_theme: 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 Shopify Graphql. Nothing to install.

What risk level is create_theme? +

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

Can I rate-limit create_theme? +

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

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

create_theme is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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