Find politicians who traded stocks of their own campaign donors in a given cycle,
AI agents call get_cross_politician_donor_trade_overlap to retrieve information from Signal8 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 analyzes existing SEC filing and campaign finance data to identify correlations between political donors and subsequent stock trades by those politicians.
From the tool's definition Tool name and description: 'Find politicians who traded stocks of their own campaign donors in a given cycle' — retrieves and queries historical data about political donations and stock trading patterns.
Attacks that exploit this kind of access
Find politicians who traded stocks of their own campaign donors in a given cycle,. It is categorised as a Read tool in the Signal8 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Signal8 MCP Server MCP server in PolicyLayer and add a rule for get_cross_politician_donor_trade_overlap: 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 Signal8 MCP Server. Nothing to install.
get_cross_politician_donor_trade_overlap 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_cross_politician_donor_trade_overlap 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_cross_politician_donor_trade_overlap. 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_cross_politician_donor_trade_overlap is provided by the Signal8 MCP Server MCP server (signal8ai/signal8-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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