Performs a search within a specific category of parliamentary data, allowing results to be limited to only documents, activities, or cases. Returns paginated results sorted by date (most recent first). Search syntax supports: keyword searches (
AI agents call search_tk_filtered 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 and filters existing parliamentary data without side effects. It performs a search query operation which is the canonical Read category pattern. The blast radius of misuse is minimal—an agent could search for sensitive information but cannot modify, delete, or execute anything. Dutch parliamentary documents are public records, further reducing risk.
From the tool's definition Tool description states 'Performs a search within a specific category of parliamentary data' and 'Returns paginated results sorted by date'. The action is querying/searching existing parliamentary documents with no modification, deletion, or execution of code.
Documented attack patterns abuse exactly the kind of access search_tk_filtered 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 search_tk_filtered:
{
"version": "1",
"default": "deny",
"tools": {
"search_tk_filtered": {}
}
}search_tk_filtered is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Performs a search within a specific category of parliamentary data, allowing results to be limited to only documents, activities, or cases. Returns paginated results sorted by date (most recent first). Search syntax supports: keyword searches (. 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 search_tk_filtered: 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.
search_tk_filtered 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 search_tk_filtered 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 search_tk_filtered. 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.
search_tk_filtered 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.
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17 OpenTK Model Context Protocol Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.