proxy_remove_rule

THE RISK

Critical Risk

Why proxy_remove_rule needs a policy

This tool irreversibly deletes interception rules from a network proxy. While the immediate scope is limited to proxy configuration (not user data at large), deletion of security/interception rules cannot be undone and could disable important monitoring, modify system security posture, or allow malicious traffic to pass undetected if misapplied by an agent.

From the tool's definition Tool name includes 'remove' and description states 'Delete an interception rule' — uses explicit deletion language indicating irreversible removal of configuration.

Documented attack patterns abuse exactly the kind of access proxy_remove_rule gives an agent:

POLICY

How to control proxy_remove_rule

PolicyLayer is an MCP gateway — it sits between your AI agents and Proxy, and nothing reaches the server without passing your rules. This is the rule we recommend for proxy_remove_rule:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "proxy_remove_rule"
  ]
}

proxy_remove_rule disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Proxy — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Proxy tools

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All 89 Proxy tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Proxy → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about proxy_remove_rule

What does the proxy_remove_rule tool do? +

Delete an interception rule. It is categorised as a Destructive tool in the Proxy MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on proxy_remove_rule? +

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

What risk level is proxy_remove_rule? +

proxy_remove_rule is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit proxy_remove_rule? +

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

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

proxy_remove_rule is provided by the Proxy MCP server (yfe404/proxy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Proxy tool call.

Start from Proxy, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →