AI agents use place_market_order to commit financial operations through Bybit — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Placing a market order on a cryptocurrency exchange constitutes a financial transaction that immediately moves funds and commits to a trade at current market prices. This is irreversible once executed, with potentially large financial impact if misused by an AI agent (wrong size, wrong direction, wrong instrument). Financial is the highest severity category and clearly applies here.
From the tool's definition 'Place a market order to buy or sell' — directly executes a live trade on Bybit exchange, committing financial obligations immediately at market price.
Attacks that exploit this kind of access
Place a market order to buy or sell. It is categorised as a Financial tool in the Bybit MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Bybit MCP server in PolicyLayer and add a rule for place_market_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. Nothing to install.
place_market_order is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the place_market_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.
Set action: deny in the PolicyLayer policy for place_market_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.
place_market_order 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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