session_memory_list_open_sessions
AI agents call session_memory_list_open_sessions to retrieve information from IMS 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 a list of currently open sessions. It has no side effects, does not modify or delete data, and does not execute arbitrary code. Listing sessions is a passive information-gathering operation, consistent with the Read category. Confidence is slightly reduced (0.85 rather than higher) due to the empty description, but the name provides strong evidence of read-only list behavior.
From the tool's definition Tool name 'session_memory_list_open_sessions' indicates listing/querying open sessions. The verb 'list' is a retrieval operation with no modification. Description is empty, but the name alone clearly suggests a read-only enumeration of session state.
Attacks that exploit this kind of access
session_memory_list_open_sessions. It is categorised as a Read tool in the IMS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IMS MCP Server MCP server in PolicyLayer and add a rule for session_memory_list_open_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 IMS MCP Server. Nothing to install.
session_memory_list_open_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 session_memory_list_open_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 session_memory_list_open_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.
session_memory_list_open_sessions is provided by the IMS MCP Server MCP server (jdelon02/ims-mcp). 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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