AI agents call vaultit_list_sessions to retrieve information from Vaultit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates existing sessions without creating, modifying, deleting, or executing any operations. It is a pure read operation with minimal blast radius—an AI agent listing sessions cannot cause harm beyond exposing session metadata. Severity is low because session enumeration is informational only and does not affect system state.
From the tool's definition Tool name 'vaultit_list_sessions' and description 'List all sessions for the current project' indicate a query/retrieval operation with no modification or destructive capability.
Attacks that exploit this kind of access
List all sessions for the current project. It is categorised as a Read tool in the Vaultit MCP Server, which means it retrieves data without modifying state.
Register the Vaultit MCP server in PolicyLayer and add a rule for vaultit_list_sessions: 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 Vaultit. Nothing to install.
vaultit_list_sessions 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 vaultit_list_sessions 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 vaultit_list_sessions. 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.
vaultit_list_sessions is provided by the Vaultit MCP server (vaultit). 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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