delete_alias

THE RISK

Critical Risk

Why delete_alias needs a policy

The tool permanently removes an alias record by ID, which cannot be undone. Even though the blast radius may be limited to alias configurations rather than core financial or user data, deletion operations that cannot be reversed fall into the Destructive category.

From the tool's definition Tool name 'delete_alias' combined with description 'Delete an Alias with the specified ID' explicitly performs an irreversible deletion operation.

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

POLICY

How to control delete_alias

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

policy.json

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

delete_alias 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 eToro MCP Server — 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 eToro MCP Server tools

Financial domain_buy Purchase a domain Financial marketplace_invoice_action Perform invoice actions like refund Financial submit_marketplace_balance Submit prepayment balances Financial submit_marketplace_billing Submit marketplace billing data Financial submit_marketplace_invoice Submit a marketplace invoice Destructive cancel_deployment Cancel a deployment which is currently building Destructive delete_access_group Delete an access group Destructive delete_access_group_project Delete an access group project

All 154 eToro MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in eToro MCP Server → 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 delete_alias

What does the delete_alias tool do? +

Delete an Alias with the specified ID. It is categorised as a Destructive tool in the eToro MCP Server 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 delete_alias? +

Register the eToro MCP Server MCP server in PolicyLayer and add a rule for delete_alias: 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 eToro MCP Server. Nothing to install.

What risk level is delete_alias? +

delete_alias 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 delete_alias? +

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

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

delete_alias is provided by the eToro MCP Server MCP server (shlomico-tr/etoroportfoliomcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every eToro MCP Server tool call.

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

CHECK YOUR STACK →