block_malicious_ip

Update the WAF (Web Application Firewall) to block an IP address.

SERVERNitrostack SOURCEnitrocloudofficial/nitrostack

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nitrostack/block-malicious-ip.md

WHAT IT DOES

What block_malicious_ip does on Nitrostack

AI agents use block_malicious_ip to create or update resources in Nitrostack, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nitrostack environment.

RISK

Why block_malicious_ip is rated Medium

Modifies firewall rules to block traffic; reversible but high-impact network security change.

From the tool's definition Update the WAF to block an IP address.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs block_malicious_ip 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 block_malicious_ip, this is the rule to start with:

block_malicious_ip Rate-limited

block_malicious_ip stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "block_malicious_ip": {
      "limits": [
        {
          "counter": "block_malicious_ip_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nitrostack, apply this rule, and every block_malicious_ip call is checked against it from then on.

FAQ

Questions about block_malicious_ip

What does the block_malicious_ip tool do? +

Update the WAF (Web Application Firewall) to block an IP address. It is categorised as a Write tool in the Nitrostack MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on block_malicious_ip? +

Register the Nitrostack MCP server in PolicyLayer and add a rule for block_malicious_ip: 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.

What risk level is block_malicious_ip? +

block_malicious_ip is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit block_malicious_ip? +

Yes. Add a rate_limit block to the block_malicious_ip 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.

How do I block block_malicious_ip completely? +

Set action: deny in the PolicyLayer policy for block_malicious_ip. 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.

What MCP server provides block_malicious_ip? +

block_malicious_ip 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.

KEEP EXPLORING

More on Nitrostack, and thousands of servers like it.

This server

All 697 Nitrostack tools →

Across the catalogue

The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →