Rank the account's largest exposures grouped by symbol, asset_type, or product.
AI agents call get_top_exposures to retrieve information from Nubra MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and ranks existing portfolio exposure information. It performs no write, delete, or financial operations—only queries and returns analytical summaries of the user's positions. The blast radius of misuse is minimal: exposing exposure data is a privacy concern but does not cause account changes, data loss, or financial impact.
From the tool's definition Tool name 'get_top_exposures' and description 'Rank the account's largest exposures grouped by symbol, asset_type, or product' indicate a query/retrieval operation that reads portfolio data without modification, deletion, or financial transactions.
Attacks that exploit this kind of access
Rank the account's largest exposures grouped by symbol, asset_type, or product. It is categorised as a Read tool in the Nubra MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Nubra MCP Server MCP server in PolicyLayer and add a rule for get_top_exposures: 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.
get_top_exposures is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_top_exposures 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 get_top_exposures. 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.
get_top_exposures 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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