calculate_etf_swap · IB Analytics MCP Server MCP

WHAT IT DOES

What calculate_etf_swap does on IB Analytics MCP Server

AI agents invoke calculate_etf_swap to trigger actions in IB Analytics MCP Server. 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 calculate_etf_swap needs a policy

The tool name 'calculate_etf_swap' suggests it may perform calculations related to ETF swaps, which are financial instruments. However, the description is empty, providing no additional context. Given the server context (Interactive Brokers portfolio analytics) and the presence of sibling tools like 'add_limit_order', this could range from a read-only calculation to a financial transaction.

From the tool's definition Tool name: calculate_etf_swap; description is empty

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

calculate_etf_swap Rate-limited

calculate_etf_swap 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": {
    "calculate_etf_swap": {
      "limits": [
        {
          "counter": "calculate_etf_swap_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 IB Analytics MCP Server, so you can run agents against it safely.

FAQ

Questions about calculate_etf_swap

What does the calculate_etf_swap tool do? +

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

How do I enforce a policy on calculate_etf_swap? +

Register the IB Analytics MCP Server MCP server in PolicyLayer and add a rule for calculate_etf_swap: 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 IB Analytics MCP Server. Nothing to install.

What risk level is calculate_etf_swap? +

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

Can I rate-limit calculate_etf_swap? +

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

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

calculate_etf_swap is provided by the IB Analytics MCP Server MCP server (knishioka/ib-sec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.