caddy_remove_site

THE RISK

Critical Risk

Why caddy_remove_site needs a policy

This tool removes site configurations from Caddyfile and persists the change to disk. This is an irreversible deletion of configuration data that cannot be undone without manual recovery. While not a data deletion tool in the traditional sense, it destroys active service configurations, making it destructive rather than merely Write.

From the tool's definition The description explicitly states 'Remove a site block from the Caddyfile' and 'Destructive — the change is persisted to disk.' This irreversibly deletes configuration.

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

POLICY

How to control caddy_remove_site

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

policy.json

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

caddy_remove_site 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 Crow — 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

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Go deeper

Critical-risk tools in Crow → 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 caddy_remove_site

What does the caddy_remove_site tool do? +

Remove a site block from the Caddyfile (matched by address) and reload Caddy. Destructive — the change is persisted to disk. It is categorised as a Destructive tool in the Crow 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 caddy_remove_site? +

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

What risk level is caddy_remove_site? +

caddy_remove_site 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 caddy_remove_site? +

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

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

caddy_remove_site is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

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

CHECK YOUR STACK →