AI agents call list_blocks to retrieve information from Qualtrics MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about survey blocks without creating, modifying, deleting, or executing any operations. It is a straightforward data retrieval function that poses minimal risk if misused by an AI agent, as it only exposes existing survey structure metadata.
From the tool's definition Tool name 'list_blocks' combined with description 'List all blocks in a survey' indicates a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access list_blocks gives an agent:
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 list_blocks:
{
"version": "1",
"default": "deny",
"tools": {
"list_blocks": {}
}
}list_blocks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
List all blocks in a survey. It is categorised as a Read tool in the Qualtrics MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Qualtrics MCP Server MCP server in PolicyLayer and add a rule for list_blocks: 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.
list_blocks is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_blocks 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.
Set action: deny in the PolicyLayer policy for list_blocks. 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.
list_blocks 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.
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.
Free to start. No card required.
57 Qualtrics MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.