Return all Hogwarts students from the HP API (up to 60), each with name, house, species, gender, ancestry, patronus, wand, actor, date of birth, and alive status.
AI agents call list_students to retrieve information from Mcp Harrypotter 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 retrieves publicly available Harry Potter student information without any side effects. It creates no data, executes no code, performs no deletions, and involves no financial transactions. The low severity reflects that misuse would only expose fictional entertainment data with no real-world impact.
From the tool's definition Tool returns student data from HP API with no modification capabilities—returns name, house, species, gender, ancestry, patronus, wand, actor, date of birth, and alive status. Verb 'list' and 'return' indicate read-only retrieval.
Attacks that exploit this kind of access
Return all Hogwarts students from the HP API (up to 60), each with name, house, species, gender, ancestry, patronus, wand, actor, date of birth, and alive status. It is categorised as a Read tool in the Mcp Harrypotter MCP Server, which means it retrieves data without modifying state.
Register the Mcp Harrypotter MCP server in PolicyLayer and add a rule for list_students: 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 Mcp Harrypotter. Nothing to install.
list_students 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 list_students 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 list_students. 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.
list_students is provided by the Mcp Harrypotter MCP server (https://gateway.pipeworx.io/harrypotter/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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