Low Risk

expert_info

Run tshark expert analysis on a pcap file. Returns warnings, errors,

How to control expert_info ↓

What expert_info does on Mcp Wireshark

AI agents call expert_info to retrieve information from Mcp Wireshark without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why expert_info needs a policy

The expert_info tool analyzes and reports on packet capture data without creating, modifying, deleting, or executing arbitrary code. It performs passive inspection similar to other diagnostic tools (decode_protocol, protocol_stats) on the same server. The blast radius of misuse is minimal — an agent cannot cause harm by analyzing packets.

From the tool's definition Tool runs tshark expert analysis on a pcap file and 'Returns warnings, errors' — a read-only inspection operation that parses existing packet capture data without modification or external side effects.

Documented attack patterns abuse exactly the kind of access expert_info gives an agent:

How to control expert_info

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Wireshark, and nothing reaches the server without passing your rules. This is the rule we recommend for expert_info:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "expert_info": {}
  }
}

expert_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Mcp Wireshark — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about expert_info

What does the expert_info tool do? +

Run tshark expert analysis on a pcap file. Returns warnings, errors,. It is categorised as a Read tool in the Mcp Wireshark MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on expert_info? +

Register the Mcp Wireshark MCP server in PolicyLayer and add a rule for expert_info: 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 Mcp Wireshark. Nothing to install.

What risk level is expert_info? +

expert_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit expert_info? +

Yes. Add a rate_limit block to the expert_info 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.

How do I block expert_info completely? +

Set action: deny in the PolicyLayer policy for expert_info. 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.

What MCP server provides expert_info? +

expert_info is provided by the Mcp Wireshark MCP server (khuynh22/mcp-wireshark). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Wireshark tool call.

Start from Mcp Wireshark, 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.

13 Mcp Wireshark tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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