AI agents call analyze_pcap to retrieve information from Wireshark MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes data from pcap (packet capture) files without any side effects. It performs queries and statistical analysis on existing network traffic data, which is a classic Read operation. The tool has no ability to modify files, execute code, or cause destructive changes.
From the tool's definition Tool name 'analyze_pcap' and description '分析 pcap 文件' (analyze pcap file) indicate reading and analysis of network capture files.
Documented attack patterns abuse exactly the kind of access analyze_pcap gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Wireshark MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for analyze_pcap:
{
"version": "1",
"default": "deny",
"tools": {
"analyze_pcap": {}
}
}analyze_pcap is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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分析 pcap 文件. It is categorised as a Read tool in the Wireshark MCP MCP Server, which means it retrieves data without modifying state.
Register the Wireshark MCP server in PolicyLayer and add a rule for analyze_pcap: 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. Nothing to install.
analyze_pcap 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 analyze_pcap 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 analyze_pcap. 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.
analyze_pcap is provided by the Wireshark MCP server (jayimu/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, 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.
10 Wireshark MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.