Get a one-shot account overview with top gainers, losers, largest exposures, and margin/risk flags.
AI agents call get_portfolio_summary 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 queries and returns portfolio information without creating, modifying, deleting, or executing any transactions. It has no side effects beyond reading existing account data. Even though the server enables order placement and trading, this specific tool is restricted to data retrieval with low blast radius if misused by an AI agent.
From the tool's definition Tool retrieves account overview data including 'top gainers, losers, largest exposures, and margin/risk flags' — purely observational with no modification or execution of trades.
Attacks that exploit this kind of access
Get a one-shot account overview with top gainers, losers, largest exposures, and margin/risk flags. 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_portfolio_summary: 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_portfolio_summary 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_portfolio_summary 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_portfolio_summary. 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_portfolio_summary 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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