Export packets from PCAP to structured JSON format.
AI agents call export_packets_json 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.
This tool reads existing packet capture data from a PCAP file and converts/exports it to JSON format. It does not modify, delete, or execute anything — it simply transforms and outputs pre-existing capture data in a different structure. This is a read/conversion operation with minimal blast radius.
From the tool's definition Export packets from PCAP to structured JSON format
Documented attack patterns abuse exactly the kind of access export_packets_json 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 export_packets_json:
{
"version": "1",
"default": "deny",
"tools": {
"export_packets_json": {}
}
}export_packets_json is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Export packets from PCAP to structured JSON format. 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 export_packets_json: 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.
export_packets_json 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 export_packets_json 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 export_packets_json. 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.
export_packets_json 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.