Square off an open position through Nubra UAT only. PROD trading is strictly blocked.
AI agents use square_off_uat_position to commit financial operations through Nubra MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Squaring off a position means closing/liquidating a financial trading position, which constitutes a financial transaction. Even though this is restricted to UAT environment, the action itself is financial in nature — it commits to closing an open trade position. This warrants Financial category with high severity due to the potential for misuse or accidental position liquidation.
From the tool's definition Square off an open position through Nubra UAT only. PROD trading is strictly blocked.
Attacks that exploit this kind of access
Square off an open position through Nubra UAT only. PROD trading is strictly blocked. It is categorised as a Financial tool in the Nubra MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Nubra MCP Server MCP server in PolicyLayer and add a rule for square_off_uat_position: 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 Nubra MCP Server. Nothing to install.
square_off_uat_position 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 square_off_uat_position 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 square_off_uat_position. 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.
square_off_uat_position is provided by the Nubra MCP Server MCP server (socials-zanskar/nubra-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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