Add or reduce margin for a position in isolated margin mode.\nUse a positive value to add margin, or a negative value to reduce margin.\nReturns updated position details after the margin adjustment.\n\nAgent hint: Use this to manually adjust margin on isolated margin positions. Pass positive marg...
AI agents use addReduceMargin to create or update resources in Bybit MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bybit MCP Server environment.
This tool modifies the margin allocated to a trading position. While it doesn't directly move money or place trades, adjusting margin on leveraged positions can significantly affect liquidation thresholds and risk exposure. It's a reversible write operation (margin can be added back), but misuse could lead to forced liquidations, making severity high.
From the tool's definition Add or reduce margin for a position in isolated margin mode. Use a positive value to add margin, or a negative value to reduce margin.
Documented attack patterns abuse exactly the kind of access addReduceMargin gives an agent:
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 addReduceMargin:
{
"version": "1",
"default": "deny",
"tools": {
"addReduceMargin": {
"limits": [
{
"counter": "addreducemargin_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}addReduceMargin 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.
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Add or reduce margin for a position in isolated margin mode.\nUse a positive value to add margin, or a negative value to reduce margin.\nReturns updated position details after the margin adjustment.\n\nAgent hint: Use this to manually adjust margin on isolated margin positions. Pass positive margin to add, negative to reduce (e.g., \. 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.
Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for addReduceMargin: 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.
addReduceMargin is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the addReduceMargin 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.
Set action: deny in the PolicyLayer policy for addReduceMargin. 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.
addReduceMargin 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.
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.
Free to start. No card required.
326 Bybit MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.