AI agents call list_sessions to retrieve information from Luxxon 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 existing session data belonging to the caller. It performs a read operation only, returning information about sessions without creating, modifying, deleting, or executing any actions. The low severity reflects minimal blast radius—an agent misusing this tool could only gain visibility into the caller's own session history, which is low-impact information disclosure.
From the tool's definition Tool name 'list_sessions' and description 'List sessions in the caller' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
List sessions in the caller. It is categorised as a Read tool in the Luxxon MCP Server, which means it retrieves data without modifying state.
Register the Luxxon MCP server in PolicyLayer and add a rule for 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 Luxxon. Nothing to install.
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 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 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.
list_sessions is provided by the Luxxon MCP server (luxxon-dev/luxxon-sdk). 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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