List all saved session snapshots in memory.
AI agents call list_session_states to retrieve information from JS Reverse Strong MCP 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 state data without side effects. It is a non-destructive read operation that inventories saved snapshots. The blast radius is minimal—it only exposes what snapshots exist in memory, which aids debugging but does not alter system state or data.
From the tool's definition Tool name 'list_session_states' and description 'List all saved session snapshots in memory' indicate a query/retrieval operation with no modification of state.
Documented attack patterns abuse exactly the kind of access list_session_states gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and JS Reverse Strong MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_session_states:
{
"version": "1",
"default": "deny",
"tools": {
"list_session_states": {}
}
}list_session_states is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all saved session snapshots in memory. It is categorised as a Read tool in the JS Reverse Strong MCP MCP Server, which means it retrieves data without modifying state.
Register the JS Reverse Strong MCP server in PolicyLayer and add a rule for list_session_states: 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 JS Reverse Strong MCP. Nothing to install.
list_session_states 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_session_states 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_session_states. 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_session_states is provided by the JS Reverse Strong MCP server (lwjjike/jsreverser-strong-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from JS Reverse Strong MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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85 JS Reverse Strong MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.