List all active sessions.. Shows all active sessions for the current user.
AI agents call mittwald_user_session_list to retrieve information from Mittwald MCP Server 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 data about existing sessions with no side effects. It does not create, modify, delete, or execute operations. While session data can be sensitive (potentially revealing login times or device info), the tool itself is read-only and non-destructive, warranting a low severity classification.
From the tool's definition Tool name contains 'list' and description states 'List all active sessions' and 'Shows all active sessions' — purely retrieves session information without modification, deletion, or execution.
Attacks that exploit this kind of access
List all active sessions.. Shows all active sessions for the current user. It is categorised as a Read tool in the Mittwald MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Mittwald MCP Server MCP server in PolicyLayer and add a rule for mittwald_user_session_list: 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 Mittwald MCP Server. Nothing to install.
mittwald_user_session_list 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 mittwald_user_session_list 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 mittwald_user_session_list. 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.
mittwald_user_session_list is provided by the Mittwald MCP Server MCP server (mittwald/mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →