Lista todas las sesiones activas con información detallada.
AI agents call list_active_sessions to retrieve information from MCP Selenium WebDriver without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays information about active browser sessions. It has no side effects, does not modify data, and does not execute code or trigger external operations. It is a pure read operation that queries the state of existing sessions.
From the tool's definition Tool name 'list_active_sessions' and description 'Lista todas las sesiones activas con información detallada' (Lists all active sessions with detailed information) indicate a query/retrieval operation with no data modification or external effects.
Attacks that exploit this kind of access
Lista todas las sesiones activas con información detallada. It is categorised as a Read tool in the MCP Selenium WebDriver MCP Server, which means it retrieves data without modifying state.
Register the MCP Selenium WebDriver MCP server in PolicyLayer and add a rule for list_active_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 MCP Selenium WebDriver. Nothing to install.
list_active_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_active_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_active_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_active_sessions is provided by the MCP Selenium WebDriver MCP server (nixon-suarez/mcp-selenium-webdriver). 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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