AI agents call list_remote_clients to retrieve information from Claude C2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves/queries information about remote clients without modifying state. However, the 'medium' severity reflects that the information exposed (list of connected remote clients) could be sensitive reconnaissance data useful for lateral movement or privilege escalation in an adversarial context, particularly given the context of other tools on this server (amsi_bypass, bypassuac, defender_exclude)…
From the tool's definition Tool name and description indicate retrieval of connected client information: 'List all connected remote clients'. The description uses 'List', a read operation verb, and contains no language suggesting modification, deletion, or execution.
Attacks that exploit this kind of access
List all connected remote clients. It is categorised as a Read tool in the Claude C2 MCP Server, which means it retrieves data without modifying state.
Register the Claude C2 MCP server in PolicyLayer and add a rule for list_remote_clients: 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 Claude C2. Nothing to install.
list_remote_clients 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_remote_clients 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_remote_clients. 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_remote_clients is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_remote_clients is one line of Claude C2's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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