set_collateral_coin · Bybit MCP: Risk & Policy

WHAT IT DOES

What set_collateral_coin does on Bybit

AI agents use set_collateral_coin to create or update resources in Bybit — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bybit environment.

WHY IT NEEDS A POLICY

Why set_collateral_coin needs a policy

This tool modifies account-level settings (collateral coin configuration) which affects trading position management and collateral handling. While reversible (can be toggled on/off), it's a Write operation rather than Read. Severity is high because misuse could alter account risk parameters or collateral structure, potentially exposing positions to liquidation risk or locking funds in unintended collateral assets.

From the tool's definition Tool name 'set_collateral_coin' and description 'Set collateral coin on or off' indicate modification of account collateral settings. This is a reversible write operation that changes trading account configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_collateral_coin Rate-limited

set_collateral_coin 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about set_collateral_coin

What does the set_collateral_coin tool do? +

Set collateral coin on or off. It is categorised as a Write tool in the Bybit MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_collateral_coin? +

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

What risk level is set_collateral_coin? +

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

Can I rate-limit set_collateral_coin? +

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

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

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