[Google Play] Get apps similar to the specified app
AI agents call gp_similar to retrieve information from Store Scraper MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query operation that retrieves similarity information for apps. It has no side effects, does not modify data, execute code, delete anything, or involve financial transactions. The blast radius of misuse is minimal - worst case would be excessive queries or scraping, not unauthorized access to sensitive operations.
From the tool's definition Tool description states 'Get apps similar to the specified app' - a retrieval operation with no modification, deletion, or execution capability. The server description confirms it 'queries and retrieves data' from Google Play Store.
Attacks that exploit this kind of access
[Google Play] Get apps similar to the specified app. It is categorised as a Read tool in the Store Scraper MCP MCP Server, which means it retrieves data without modifying state.
Register the Store Scraper MCP server in PolicyLayer and add a rule for gp_similar: 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 Store Scraper MCP. Nothing to install.
gp_similar 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 gp_similar 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 gp_similar. 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.
gp_similar is provided by the Store Scraper MCP server (miguelalvred/mobile-store-scraper-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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