AI agents call gov.federal-register-recent 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 retrieves publicly available Federal Register documents. It is a read-only data feed with no side effects. The server context mentions pay-per-call settlement in USDC, but the tool itself does not initiate financial transactions — the payment is a platform mechanic, not the tool's action. Severity is low as misuse only results in unnecessary API calls and minor USDC charges.
From the tool's definition Chronological feed of newest Federal Register documents — use for compliance change-detection
Attacks that exploit this kind of access
Chronological feed of newest Federal Register documents (RULE / PRORULE / NOTICE / PRESDOCU) — use for compliance change-detection. 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.federal-register-recent: 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.federal-register-recent 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.federal-register-recent 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.federal-register-recent. 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.federal-register-recent 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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