List people with optional filtering and pagination
AI agents call list_people to retrieve information from Twenty CRM MCP Server 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 customer data (people records) from the Twenty CRM system with optional filters and pagination parameters. It has no side effects—it does not create, modify, delete, or execute code. The presence of sibling destructive tools (delete_person, delete_company, etc.) on the same server does not change the classification of this specific tool, which is clearly a read-only operation.
From the tool's definition Tool name 'list_people' and description 'List people with optional filtering and pagination' indicate a retrieval operation with no modification or deletion of data.
Documented attack patterns abuse exactly the kind of access list_people gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Twenty CRM MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_people:
{
"version": "1",
"default": "deny",
"tools": {
"list_people": {}
}
}list_people is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List people with optional filtering and pagination. It is categorised as a Read tool in the Twenty CRM MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Twenty CRM MCP Server MCP server in PolicyLayer and add a rule for list_people: 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 Twenty CRM MCP Server. Nothing to install.
list_people 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_people 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_people. 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_people is provided by the Twenty CRM MCP Server MCP server (mhenry3164/twenty-crm-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Twenty CRM MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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23 Twenty CRM MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.