Fetch the current holdings snapshot, including invested value, current value, haircut, margin benefit, and pledge-related fields.
AI agents call get_holdings 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, or deleting data. It has no irreversible effects and does not execute external operations or commit financial transactions. The blast radius of misuse is limited to information disclosure of the user's own holdings, which is low severity.
From the tool's definition Tool name 'get_holdings' and description 'Fetch the current holdings snapshot' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Fetch the current holdings snapshot, including invested value, current value, haircut, margin benefit, and pledge-related fields. 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_holdings: 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_holdings 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_holdings 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_holdings. 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_holdings 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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