Get market-wide campaign-finance rollups across ALL tracked politicians for a cycle:
AI agents call get_donor_aggregates 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 aggregates market-wide campaign-finance data across politicians for a given cycle. It is a read-only operation that queries and returns information without creating, modifying, deleting, or executing any actions. While the data itself may be sensitive (campaign finance), the tool itself performs only retrieval, making it a Read operation with low severity.
From the tool's definition Tool description uses 'Get' and 'rollups' indicating data retrieval. No modification, deletion, or execution of external operations is mentioned. The tool aggregates and queries existing campaign-finance data without side effects.
Attacks that exploit this kind of access
Get market-wide campaign-finance rollups across ALL tracked politicians for a 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_donor_aggregates: 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_donor_aggregates 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_donor_aggregates 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_donor_aggregates. 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_donor_aggregates 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.
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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