Rank MPs by rebellion count — how many times they voted against their party whip. Use this for any question about
AI agents call rank_entities to retrieve information from UK Parliament MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only query tool that aggregates and ranks existing parliamentary voting data. While the data it retrieves could be politically sensitive, the tool itself performs no side effects, executes no code, modifies no records, and causes no irreversible changes. It is purely informational analysis over public parliamentary records.
From the tool's definition The tool 'rank_entities' ranks MPs by rebellion count and voting behavior. It 'retrieve[s]' and 'search[es]' parliamentary voting records with no modification, deletion, or execution of external operations.
Documented attack patterns abuse exactly the kind of access rank_entities gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and UK Parliament MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for rank_entities:
{
"version": "1",
"default": "deny",
"tools": {
"rank_entities": {}
}
}rank_entities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Rank MPs by rebellion count — how many times they voted against their party whip. Use this for any question about. It is categorised as a Read tool in the UK Parliament MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UK Parliament MCP Server MCP server in PolicyLayer and add a rule for rank_entities: 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 UK Parliament MCP Server. Nothing to install.
rank_entities 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 rank_entities 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 rank_entities. 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.
rank_entities is provided by the UK Parliament MCP Server MCP server (kupad95/uk-parliament-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from UK Parliament 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.
5 UK Parliament MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.