Get detailed internet data usage for the current billing cycle, including GB used, data cap/limit, days remaining, and percentage used.
AI agents call get_usage_details to retrieve information from Xfinity MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns account usage information without any side effects. It is a pure read operation that retrieves existing account metrics for the user's awareness. No data is modified, deleted, or used to trigger external operations. Low severity because unauthorized access reveals only the user's own consumption metrics.
From the tool's definition Tool name 'get_usage_details' and description explicitly states it retrieves data: 'Get detailed internet data usage' with read-only outputs (GB used, data cap, days remaining, percentage used). No modification, execution, deletion, or financial operations.
Attacks that exploit this kind of access
Get detailed internet data usage for the current billing cycle, including GB used, data cap/limit, days remaining, and percentage used. It is categorised as a Read tool in the Xfinity MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Xfinity MCP Server MCP server in PolicyLayer and add a rule for get_usage_details: 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 Xfinity MCP Server. Nothing to install.
get_usage_details 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_usage_details 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_usage_details. 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_usage_details is provided by the Xfinity MCP Server MCP server (markswendsen-code/mcp-xfinity). 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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