qlib_backtest_topk · Qlib MCP: Risk & Policy

WHAT IT DOES

What qlib_backtest_topk does on Qlib

AI agents invoke qlib_backtest_topk to trigger actions in Qlib. 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 qlib_backtest_topk needs a policy

Based on the server context (quantitative research platform with backtesting capabilities) and the tool name implying a top-K strategy backtest, this tool likely executes a backtesting simulation. Backtesting runs computational workflows against historical financial data and may trigger strategy evaluations. The empty description lowers confidence.

From the tool's definition Tool name 'qlib_backtest_topk' on a server described as supporting 'strategy backtesting'; description is empty/uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

qlib_backtest_topk Rate-limited

qlib_backtest_topk 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": {
    "qlib_backtest_topk": {
      "limits": [
        {
          "counter": "qlib_backtest_topk_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 Qlib, so you can run agents against it safely.

FAQ

Questions about qlib_backtest_topk

What does the qlib_backtest_topk tool do? +

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

How do I enforce a policy on qlib_backtest_topk? +

Register the Qlib MCP server in PolicyLayer and add a rule for qlib_backtest_topk: 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 Qlib. Nothing to install.

What risk level is qlib_backtest_topk? +

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

Can I rate-limit qlib_backtest_topk? +

Yes. Add a rate_limit block to the qlib_backtest_topk 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 qlib_backtest_topk completely? +

Set action: deny in the PolicyLayer policy for qlib_backtest_topk. 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 qlib_backtest_topk? +

qlib_backtest_topk is provided by the Qlib MCP server (lsj210001/qlib-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.