Provides a complete directory of current Members of Parliament with their IDs, names, titles, party affiliations, and faction memberships. The response is a JSON array where each entry contains an MP
AI agents call list_persons to retrieve information from OpenTK Model Context Protocol Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves publicly available parliamentary member information without any capability to modify, delete, or execute operations. The data returned (MP IDs, names, titles, party affiliations, faction memberships) is factual directory information that would typically be public in parliamentary systems. There is no indication of side effects, state changes, or external operation triggering.
From the tool's definition Tool 'list_persons' described as providing 'a complete directory of current Members of Parliament' — retrieves and queries data with no modification capability.
Documented attack patterns abuse exactly the kind of access list_persons gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OpenTK Model Context Protocol Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_persons:
{
"version": "1",
"default": "deny",
"tools": {
"list_persons": {}
}
}list_persons 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.
Provides a complete directory of current Members of Parliament with their IDs, names, titles, party affiliations, and faction memberships. The response is a JSON array where each entry contains an MP. It is categorised as a Read tool in the OpenTK Model Context Protocol Server MCP Server, which means it retrieves data without modifying state.
Register the OpenTK Model Context Protocol Server MCP server in PolicyLayer and add a rule for list_persons: 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 OpenTK Model Context Protocol Server. Nothing to install.
list_persons 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_persons 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_persons. 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_persons is provided by the OpenTK Model Context Protocol Server MCP server (r-huijts/opentk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OpenTK Model Context Protocol 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.
17 OpenTK Model Context Protocol Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.