Cancel a meal registration
AI agents call cancel_meal to permanently remove resources in IIITH Mess MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a meal registration is a destructive action because it removes/deletes an existing booking. While it could be argued as a 'Write' (modification), cancellation is generally irreversible once the window closes, making it effectively destructive.
From the tool's definition 'Cancel a meal registration' — cancellation of a registration is typically irreversible within the cancellation window, removing the student's meal booking permanently.
Attacks that exploit this kind of access
Cancel a meal registration. It is categorised as a Destructive tool in the IIITH Mess MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the IIITH Mess MCP Server MCP server in PolicyLayer and add a rule for cancel_meal: 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 IIITH Mess MCP Server. Nothing to install.
cancel_meal is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the cancel_meal 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 cancel_meal. 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.
cancel_meal is provided by the IIITH Mess MCP Server MCP server (njp6969/iiith-mess-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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