Get all holdings for a specific stock/ETF symbol across all statements.
AI agents call get_holdings_by_symbol to retrieve information from Investment Statement 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 financial account data (holdings information) from parsed investment statements. It is a passive query operation that does not create, modify, delete, or execute any actions. While the underlying data is financial in nature, the tool itself performs only read-only access and carries minimal risk of misuse—an agent querying holdings cannot move money, execute trades, or alter account state.
From the tool's definition Tool description explicitly states 'Get all holdings' — a retrieval operation with no modification, deletion, or execution. It queries existing investment data by symbol without side effects.
Attacks that exploit this kind of access
Get all holdings for a specific stock/ETF symbol across all statements. It is categorised as a Read tool in the Investment Statement MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Investment Statement MCP Server MCP server in PolicyLayer and add a rule for get_holdings_by_symbol: 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 Investment Statement MCP Server. Nothing to install.
get_holdings_by_symbol 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_by_symbol 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_by_symbol. 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_by_symbol is provided by the Investment Statement MCP Server MCP server (vinnycarter05/investing-mcp). 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.
Teams ship this data inside their own products. See what a licence covers →