activate_subscription_contract · Shopify Graphql MCP

WHAT IT DOES

What activate_subscription_contract does on Shopify Graphql

AI agents use activate_subscription_contract 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.

WHY IT NEEDS A POLICY

Why activate_subscription_contract needs a policy

This tool modifies subscription contract state, transitioning it from paused/failed to active. While it involves subscriptions (which have financial implications), the tool itself does not directly move money or create new financial obligations—it reactivates an existing contract. This is a Write action: reversible state modification of a subscription contract.

From the tool's definition Tool name 'activate_subscription_contract' and description 'Activate a subscription contract' indicate state modification of a subscription contract.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

activate_subscription_contract Rate-limited

activate_subscription_contract 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": {
    "activate_subscription_contract": {
      "limits": [
        {
          "counter": "activate_subscription_contract_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 Shopify Graphql, so you can run agents against it safely.

FAQ

Questions about activate_subscription_contract

What does the activate_subscription_contract tool do? +

Activate a subscription contract (must be active, paused, or failed status). 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 activate_subscription_contract? +

Register the Shopify Graphql MCP server in PolicyLayer and add a rule for activate_subscription_contract: 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 activate_subscription_contract? +

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

Can I rate-limit activate_subscription_contract? +

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

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

activate_subscription_contract 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.