check_link_safety
Checks a suspicious URL using VirusTotal and reports whether security vendors have flagged the URL as malicious or suspicious.
This record as markdown: /tools/nitrostack/check-link-safety.md
What check_link_safety does on Nitrostack
AI agents call check_link_safety to retrieve information from Nitrostack without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why check_link_safety is rated Low
Tool queries external security service for malware detection data without modifying or executing anything.
From the tool's definition Checks URL using VirusTotal, reports security vendor flags
Attacks that exploit this kind of access
The rule that runs check_link_safety safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nitrostack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_link_safety, this is the rule to start with:
check_link_safety is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nitrostack, apply this rule, and every check_link_safety call is checked against it from then on.
Questions about check_link_safety
Checks a suspicious URL using VirusTotal and reports whether security vendors have flagged the URL as malicious or suspicious. It is categorised as a Read tool in the Nitrostack MCP Server, which means it retrieves data without modifying state.
Register the Nitrostack MCP server in PolicyLayer and add a rule for check_link_safety: 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 Nitrostack. Nothing to install.
check_link_safety 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 check_link_safety 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 check_link_safety. 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.
check_link_safety is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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