Modify isolated position margin.
AI agents use modifyPositionMargin 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.
Modifying position margin on a futures trading platform is a financial operation. It changes the margin (collateral) allocated to a leveraged position, which can affect liquidation thresholds, risk exposure, and financial outcomes. Misuse could lead to forced liquidations or increased financial risk, making this a Financial category tool with high severity.
From the tool's definition Modify isolated position margin — directly affects margin allocation for financial trading positions on a cryptocurrency futures exchange.
Attacks that exploit this kind of access
Modify isolated position margin. 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 modifyPositionMargin: 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.
modifyPositionMargin 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 modifyPositionMargin 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 modifyPositionMargin. 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.
modifyPositionMargin 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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