Get congressional stock trades for a ticker symbol.
AI agents call get_congress_trades to retrieve information from Quiver Quantitative 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 historical congressional stock trading data for analysis. It is a read-only query operation that has no side effects on data or systems. While the data itself relates to financial markets and political activities, the tool does not execute trades, transfer funds, modify records, or delete anything. It is informational access only, making it a Read category tool with low severity.
From the tool's definition Tool name 'get_congress_trades' and description 'Get congressional stock trades for a ticker symbol' indicate pure data retrieval with no modification, creation, deletion, or financial transaction execution.
Attacks that exploit this kind of access
Get congressional stock trades for a ticker symbol. It is categorised as a Read tool in the Quiver Quantitative MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Quiver Quantitative MCP Server MCP server in PolicyLayer and add a rule for get_congress_trades: 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 Quiver Quantitative MCP Server. Nothing to install.
get_congress_trades 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_congress_trades 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_congress_trades. 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_congress_trades is provided by the Quiver Quantitative MCP Server MCP server (nimblebraininc/mcp-quiver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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