AI agents call discover_apps to retrieve information from Shopify Partner Agent without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name and server context indicate this performs app discovery/listing (a Read operation), likely retrieving available Shopify apps or analytics without modifying data. The absence of action words like 'create', 'delete', 'execute', or 'pay' and alignment with other 'get_*' tools on the server support Read classification. However, the empty description reduces confidence slightly.
From the tool's definition Tool name 'discover_apps' suggests a query or search function consistent with the server's stated purpose of 'revenue analytics, churn analysis, retention cohorts' and sibling tools like 'get_app_details' and 'get_app_events' which are clearly data retrieval…
Documented attack patterns abuse exactly the kind of access discover_apps gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Shopify Partner Agent, and nothing reaches the server without passing your rules. This is the rule we recommend for discover_apps:
{
"version": "1",
"default": "deny",
"tools": {
"discover_apps": {}
}
}discover_apps is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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discover_apps. It is categorised as a Read tool in the Shopify Partner Agent MCP Server, which means it retrieves data without modifying state.
Register the Shopify Partner Agent MCP server in PolicyLayer and add a rule for discover_apps: 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 Partner Agent. Nothing to install.
discover_apps is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the discover_apps 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.
Set action: deny in the PolicyLayer policy for discover_apps. 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.
discover_apps is provided by the Shopify Partner Agent MCP server (rushikeshmore/shopify-partner-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Shopify Partner Agent, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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25 Shopify Partner Agent tools catalogued and risk-classified — across an index of 43,000+ MCP servers.