List screen size statistics.
AI agents call get_stats_sizes to retrieve information from Goatcounter MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves screen size statistics from web analytics—a read-only operation with no side effects. It fits the 'Read' category as it queries data without creating, modifying, deleting, or executing external operations. The blast radius of misuse is minimal (information disclosure only). Confidence is high due to clear read semantics and the consistent pattern of query tools across the sibling tools listed.
From the tool's definition Tool name 'get_stats_sizes' and description 'List screen size statistics' indicate a query operation that retrieves analytics data without modifying or deleting anything.
Attacks that exploit this kind of access
List screen size statistics. It is categorised as a Read tool in the Goatcounter MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Goatcounter MCP Server MCP server in PolicyLayer and add a rule for get_stats_sizes: 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 Goatcounter MCP Server. Nothing to install.
get_stats_sizes 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 get_stats_sizes 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 get_stats_sizes. 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.
get_stats_sizes is provided by the Goatcounter MCP Server MCP server (rafaljanicki/goatcounter-mcp-server). 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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