AI agents call get_lists to retrieve information from ClickUp MCP Integration without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries existing lists without creating, modifying, deleting, or executing operations. It is a straightforward data retrieval function that returns information about lists in a folder, making it a Read category tool with low severity since it only accesses data without side effects.
From the tool's definition Tool name 'get_lists' and description 'Get all lists in a folder' indicate a retrieval operation with no modification of data.
Documented attack patterns abuse exactly the kind of access get_lists gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and ClickUp MCP Integration, and nothing reaches the server without passing your rules. This is the rule we recommend for get_lists:
{
"version": "1",
"default": "deny",
"tools": {
"get_lists": {}
}
}get_lists is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all lists in a folder. It is categorised as a Read tool in the ClickUp MCP Integration MCP Server, which means it retrieves data without modifying state.
Register the ClickUp MCP Integration MCP server in PolicyLayer and add a rule for get_lists: 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 ClickUp MCP Integration. Nothing to install.
get_lists 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 get_lists 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 get_lists. 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.
get_lists is provided by the ClickUp MCP Integration MCP server (leanware-io/clickup-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from ClickUp MCP Integration, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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20 ClickUp MCP Integration tools catalogued and risk-classified — across an index of 43,000+ MCP servers.