Change user
AI agents use setLeverage to commit financial operations through Aster Finance MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Setting leverage on a cryptocurrency futures trading account directly affects financial risk exposure. Changing leverage multiplies the risk/reward of positions and can lead to liquidation of funds. This is a financial configuration action on a trading platform, making it Financial category with high severity since misuse could dramatically increase financial exposure and risk of liquidation.
From the tool's definition Tool name 'setLeverage' on a futures trading server that 'Provides comprehensive access to market data, order management, account information, and position management on the Aster exchange.' Description is truncated/uninformative ('Change user'), but the name…
Attacks that exploit this kind of access
Change user. It is categorised as a Financial tool in the Aster Finance MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aster Finance MCP Server MCP server in PolicyLayer and add a rule for setLeverage: 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 Aster Finance MCP Server. Nothing to install.
setLeverage 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 setLeverage 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 setLeverage. 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.
setLeverage is provided by the Aster Finance MCP Server MCP server (questflowai/aster-mcp-server). 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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