setMmp

THE RISK

Medium Risk

Why setMmp needs a policy

This tool creates or modifies configuration parameters for options market maker protection, which affects trading behavior and risk management settings. While not destructive (changes are reversible) or immediately financial (no direct money movement), it is a Write action that alters account/trading configuration.

From the tool's definition Tool name 'setMmp' and description state 'Configure Market Maker Protection parameters' — this modifies trading configuration settings for options trading on the Bybit exchange. The verb 'Configure' and 'Set' indicate data modification rather than retrieval.

Documented attack patterns abuse exactly the kind of access setMmp gives an agent:

POLICY

How to control setMmp

PolicyLayer is an MCP gateway — it sits between your AI agents and Bybit MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for setMmp:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "setMmp": {
      "limits": [
        {
          "counter": "setmmp_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

setMmp stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Bybit MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about setMmp

What does the setMmp tool do? +

Configure Market Maker Protection parameters for options trading. All parameters\nare required. Set frozenPeriod to \. It is categorised as a Write tool in the Bybit MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on setMmp? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for setMmp: 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 Bybit MCP Server. Nothing to install.

What risk level is setMmp? +

setMmp is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit setMmp? +

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

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

setMmp is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bybit MCP Server tool call.

Start from Bybit MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →