List all active terminal sessions with their status and metadata
AI agents call terminal_list_sessions to retrieve information from Mcp Shellkeeper without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves session metadata and status information without side effects. It performs a passive query operation typical of Read category tools. While the broader server (Shellkeeper) offers Execute and potentially Destructive capabilities via sibling tools like terminal_execute and terminal_close_session, this specific tool only lists and enumerates existing sessions.
From the tool's definition Tool name 'terminal_list_sessions' and description 'List all active terminal sessions with their status and metadata' indicate a read-only operation that queries and retrieves information about existing sessions without modifying or executing anything.
Attacks that exploit this kind of access
List all active terminal sessions with their status and metadata. It is categorised as a Read tool in the Mcp Shellkeeper MCP Server, which means it retrieves data without modifying state.
Register the Mcp Shellkeeper MCP server in PolicyLayer and add a rule for terminal_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 Mcp Shellkeeper. Nothing to install.
terminal_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 terminal_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 terminal_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.
terminal_list_sessions is provided by the Mcp Shellkeeper MCP server (mcp-shellkeeper). 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.
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