list_session_bills
AI agents call list_session_bills to retrieve information from Umbrella Terminal MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries legislative session bill data without side effects. The 'list_' prefix and server context strongly suggest a read operation that returns existing data. No write, execute, destructive, or financial operations are indicated. Confidence is slightly reduced (0.85 vs 0.95) because the description is empty, but sibling tools and server purpose provide strong contextual evidence.
From the tool's definition Tool name 'list_session_bills' indicates a listing/querying operation. Sibling tools on this server (get_bill, get_bill_amendments, get_bill_history, batch_get_entities, find_path) are all read-only data retrieval functions.
Attacks that exploit this kind of access
list_session_bills. It is categorised as a Read tool in the Umbrella Terminal MCP MCP Server, which means it retrieves data without modifying state.
Register the Umbrella Terminal MCP server in PolicyLayer and add a rule for list_session_bills: 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 Umbrella Terminal MCP. Nothing to install.
list_session_bills 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 list_session_bills 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 list_session_bills. 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.
list_session_bills is provided by the Umbrella Terminal MCP server (theblackcompany/umbrella_terminal_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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