AI agents call scan_capture_for_threats to retrieve information from Wireshark MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to perform analysis and threat detection on captured packets—a read operation that queries data for security insights. Although the description is empty (lowering confidence), the name and server context (Wireshark, a passive network analyzer) strongly suggest this is a non-destructive inspection tool.
From the tool's definition Tool name 'scan_capture_for_threats' and sibling tools (analyze_pcap_file, check_ip_threat_intel, follow_tcp_stream, export_packets_*) indicate packet inspection and analysis operations.
Documented attack patterns abuse exactly the kind of access scan_capture_for_threats gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Wireshark MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for scan_capture_for_threats:
{
"version": "1",
"default": "deny",
"tools": {
"scan_capture_for_threats": {}
}
}scan_capture_for_threats is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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scan_capture_for_threats. It is categorised as a Read tool in the Wireshark MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Wireshark MCP Server MCP server in PolicyLayer and add a rule for scan_capture_for_threats: 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 Wireshark MCP Server. Nothing to install.
scan_capture_for_threats 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 scan_capture_for_threats 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 scan_capture_for_threats. 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.
scan_capture_for_threats is provided by the Wireshark MCP Server MCP server (mixelpixx/wireshark-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Wireshark MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
19 Wireshark MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.