Check the current subscription status
AI agents call subscription_status to retrieve information from Inkwell MCP Server 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 to retrieve subscription status information. It has no side effects, does not execute code, does not modify data, and does not involve financial transactions (it merely reports existing status). The blast radius of misuse is minimal—an agent could learn a user's subscription tier, but cannot change it or cause harm.
From the tool's definition Tool name 'subscription_status' and description 'Check the current subscription status' indicate a query operation that retrieves subscription data without modifying or affecting any system state.
Attacks that exploit this kind of access
Check the current subscription status. It is categorised as a Read tool in the Inkwell MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Inkwell MCP Server MCP server in PolicyLayer and add a rule for subscription_status: 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 Inkwell MCP Server. Nothing to install.
subscription_status 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 subscription_status 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 subscription_status. 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.
subscription_status is provided by the Inkwell MCP Server MCP server (mumega-com/inkwell). 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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