AI agents call analyze_pcap_file to retrieve information from Tshark without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
PCAP analysis is fundamentally a read operation that examines network traffic data. The tool retrieves and analyzes packet information without creating, modifying, or deleting data. Even though TLS decryption is mentioned in server capabilities, this specific tool appears to perform post-hoc analysis rather than active capture/decryption.
From the tool's definition Tool name 'analyze_pcap_file' indicates reading and analysis of packet capture files. No description provided, but context from server description ('network packet analysis', 'PCAP analysis') and sibling tools (all query/extract/analyze operations) suggests…
Attacks that exploit this kind of access
analyze_pcap_file. It is categorised as a Read tool in the Tshark MCP Server, which means it retrieves data without modifying state.
Register the Tshark MCP server in PolicyLayer and add a rule for analyze_pcap_file: 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 Tshark. Nothing to install.
analyze_pcap_file 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_file 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_file. 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_file is provided by the Tshark MCP server (ouonet/tshark-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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