route_query · MCP Server Proto-OKN MCP: Risk & Policy

WHAT IT DOES

What route_query does on MCP Server Proto-OKN

AI agents invoke route_query to trigger actions in MCP Server Proto-OKN. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why route_query needs a policy

The server is designed for querying SPARQL endpoints. The tool name 'route_query' suggests it routes or dispatches queries to appropriate SPARQL endpoints, which is an Execute-level action (running queries against external systems). Sibling tools like 'multi_graph_query' and 'get_query_template' reinforce this pattern. However, the empty description lowers confidence significantly.

From the tool's definition Tool name 'route_query' on a server specialized for querying SPARQL endpoints; description is empty/uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

route_query Rate-limited

route_query stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "route_query": {
      "limits": [
        {
          "counter": "route_query_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MCP Server Proto-OKN, so you can run agents against it safely.

FAQ

Questions about route_query

What does the route_query tool do? +

route_query. It is categorised as a Execute tool in the MCP Server Proto-OKN MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on route_query? +

Register the MCP Server Proto-OKN MCP server in PolicyLayer and add a rule for route_query: 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 MCP Server Proto-OKN. Nothing to install.

What risk level is route_query? +

route_query is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit route_query? +

Yes. Add a rate_limit block to the route_query 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.

How do I block route_query completely? +

Set action: deny in the PolicyLayer policy for route_query. 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.

What MCP server provides route_query? +

route_query is provided by the MCP Server Proto-OKN MCP server (sbl-sdsc/mcp-proto-okn). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.