amend_order

THE RISK

Medium Risk

Why amend_order needs a policy

Amending an order modifies existing trading data reversibly (the order can be amended again or cancelled), placing it in the Write category. However, since this operates on financial trading orders on Bybit, misuse could result in significant financial exposure — changing prices, quantities, or directions of pending trades.

From the tool's definition Modify an existing pending order

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

POLICY

How to control amend_order

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 amend_order:

policy.json

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

amend_order 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

Related tools and policies

More Bybit MCP Server tools

Financial place_order Place a new trading order on Bybit. ⚠️ EXECUTES REAL TRADES WITH REAL MONEY when trading i Financial place_trigger_order Place a conditional/trigger order that executes only when market price reaches your trigge Financial batch_place_order Place multiple orders in a single request. More efficient than placing orders individually Financial batch_amend_order Modify multiple existing orders in a single request. More efficient than amending orders i Financial set_trading_stop Set take profit and stop loss orders for an existing position. These orders automatically Destructive batch_cancel_order Cancel multiple existing orders in a single request. More efficient than canceling orders Destructive cancel_all_orders Cancel all pending orders for a category or specific symbol. Use with caution as this canc Destructive cancel_order Cancel a single pending order immediately. ⚠️ Only works on orders that haven

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Go deeper

Govern customer-ops agents → PII redaction, approval on external messages, and no-bulk-delete rules on the records agents change.
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 →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about amend_order

What does the amend_order tool do? +

Modify an existing pending order. 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 amend_order? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for amend_order: 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 amend_order? +

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

Can I rate-limit amend_order? +

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

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

amend_order is provided by the Bybit MCP Server MCP server (bcusack/bybit-py-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.

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