This record as markdown: /tools/12211725-star-hospital-vuln-scanner-mcp/cancel-scan.md
What cancel_scan does on Hospital Vuln Scanner
AI agents call cancel_scan to permanently remove resources in Hospital Vuln Scanner, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why cancel_scan is rated Critical
An AI agent that decides to call cancel_scan doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Hospital Vuln Scanner is gone. There is no undo for destructive operations.
Attacks that exploit this kind of access
The rule that runs cancel_scan safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hospital Vuln Scanner, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cancel_scan, this is the rule to start with:
cancel_scan is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Hospital Vuln Scanner, apply this rule, and every cancel_scan call is checked against it from then on.
Questions about cancel_scan
取消正在运行的扫描任务. It is categorised as a Destructive tool in the Hospital Vuln Scanner MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Hospital Vuln Scanner MCP server in PolicyLayer and add a rule for cancel_scan: 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 Hospital Vuln Scanner. Nothing to install.
cancel_scan 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_scan 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_scan. 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_scan is provided by the Hospital Vuln Scanner MCP server (12211725-star/hospital-vuln-scanner-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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