update_redirection_host · Nginx Proxy Manager MCP

WHAT IT DOES

What update_redirection_host does on Nginx Proxy Manager MCP

AI agents use update_redirection_host to create or update resources in Nginx Proxy Manager MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nginx Proxy Manager MCP environment.

WHY IT NEEDS A POLICY

Why update_redirection_host needs a policy

This tool falls under Write because it creates or modifies data reversibly. Updating a redirection host configuration changes routing behavior and traffic handling, which could impact web traffic and user access if misconfigured by an agent. However, it is reversible (not Destructive) and does not execute arbitrary code (not Execute) or move money (not Financial).

From the tool's definition Tool name 'update_redirection_host' and description 'Update an existing redirection host' clearly indicate modification of existing proxy configuration data. The tool modifies redirection host settings reversibly without permanent deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_redirection_host Rate-limited

update_redirection_host 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": {
    "update_redirection_host": {
      "limits": [
        {
          "counter": "update_redirection_host_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Nginx Proxy Manager MCP, so you can run agents against it safely.

FAQ

Questions about update_redirection_host

What does the update_redirection_host tool do? +

Update an existing redirection host. It is categorised as a Write tool in the Nginx Proxy Manager MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_redirection_host? +

Register the Nginx Proxy Manager MCP server in PolicyLayer and add a rule for update_redirection_host: 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 Nginx Proxy Manager MCP. Nothing to install.

What risk level is update_redirection_host? +

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

Can I rate-limit update_redirection_host? +

Yes. Add a rate_limit block to the update_redirection_host 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 update_redirection_host completely? +

Set action: deny in the PolicyLayer policy for update_redirection_host. 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 update_redirection_host? +

update_redirection_host is provided by the Nginx Proxy Manager MCP server (verybigsad/nginx-proxy-manager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.