delete_block

THE RISK

Critical Risk

Why delete_block needs a policy

This tool permanently removes a survey block, which cannot be undone without manual recreation. Deletion is irreversible data loss. While not as critical as deleting an entire survey or destroying all responses, removing a block destroys structured survey design work.

From the tool's definition Tool name 'delete_block' combined with description 'Remove a block from a survey' explicitly indicates irreversible deletion of survey content.

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

POLICY

How to control delete_block

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

policy.json

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

delete_block 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 Qualtrics 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 Qualtrics MCP Server tools

Destructive delete_distribution Delete a distribution Destructive delete_mailing_list Delete a mailing list Destructive delete_question Remove a question from a survey Destructive delete_response Delete a survey response Destructive delete_survey Delete a survey. Requires name confirmation as a safety measure. Destructive delete_webhook Delete an event subscription (webhook) Destructive remove_contact Remove a contact from a mailing list Execute add_web_service Add a Web Service element to the survey flow that makes an HTTP call to an external API du

All 57 Qualtrics 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 Qualtrics 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_block

What does the delete_block tool do? +

Remove a block from a survey. It is categorised as a Destructive tool in the Qualtrics 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_block? +

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

What risk level is delete_block? +

delete_block 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_block? +

Yes. Add a rate_limit block to the delete_block 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_block completely? +

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

delete_block is provided by the Qualtrics MCP Server MCP server (yrvelez/qualtrics-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Qualtrics MCP Server tool call.

Start from Qualtrics 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 →