Get your grades for a course: each grade item with displayed grade, points, weight, and feedback.
AI agents call get_grades to retrieve information from Waterloo Learn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries academic grade information for a user's course. It performs no writes, deletions, code execution, or financial transactions. The verb 'Get' and the informational nature of the returned data (grade items, points, weights, feedback) confirm it is a read-only operation with no capability to alter or destroy data.
From the tool's definition Tool name 'get_grades' and description 'Get your grades for a course: each grade item with displayed grade, points, weight, and feedback' indicate retrieval of existing grade data with no modification, deletion, or side effects.
Attacks that exploit this kind of access
Get your grades for a course: each grade item with displayed grade, points, weight, and feedback. It is categorised as a Read tool in the Waterloo Learn MCP Server, which means it retrieves data without modifying state.
Register the Waterloo Learn MCP server in PolicyLayer and add a rule for get_grades: 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 Waterloo Learn. Nothing to install.
get_grades 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_grades 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_grades. 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_grades is provided by the Waterloo Learn MCP server (petersenmatthew/waterloo-learn-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_grades is one line of Waterloo Learn's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →