Retrieve detailed quota and credit usage statistics with budget warnings.
AI agents call get_usage_stats to retrieve information from FullMention without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries usage statistics and budget information for display or monitoring purposes. It has no side effects, does not execute external operations, does not modify or delete data, and does not involve financial transactions. It is a straightforward data retrieval operation with minimal security risk if misused by an AI agent.
From the tool's definition Tool name 'get_usage_stats' and description 'Retrieve detailed quota and credit usage statistics' indicate a query operation that fetches data without modification. The verb 'retrieve' explicitly signals read-only access.
Attacks that exploit this kind of access
Retrieve detailed quota and credit usage statistics with budget warnings. It is categorised as a Read tool in the FullMention MCP Server, which means it retrieves data without modifying state.
Register the FullMention MCP server in PolicyLayer and add a rule for get_usage_stats: 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 FullMention. Nothing to install.
get_usage_stats 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_stats 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_stats. 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_stats is provided by the FullMention MCP server (riisager/fullmention-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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