AI agents call gov.congress-nomination to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool provides read-only access to public congressional nomination records. It retrieves and filters existing data without creating, modifying, deleting, or executing any actions. The filtering parameters indicate data lookup operations typical of a search/query interface. No side effects or irreversible operations are possible.
From the tool's definition Tool retrieves US presidential nominations data from Congress.gov. Description indicates query/filter operations ("Pass congress+number for single nomination; or filter by congress + date range") with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
US presidential nominations (cabinet, judicial, executive) sent to the Senate for confirmation (Congress.gov). Pass congress+number for single nomination; or filter by congress + date range. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for gov.congress-nomination: 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 Mcp. Nothing to install.
gov.congress-nomination 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 gov.congress-nomination 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 gov.congress-nomination. 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.
gov.congress-nomination is provided by the MCP server (@2sio/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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