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bx33661

Wireshark MCP

by bx33661

wireshark_analyze_protocol

Read-only

Analyze one protocol from a pcap file with preset fields and filters. Returns a summary and limited rows for that protocol.

Instructions

[Protocol] Analyze one protocol with preset fields and filter. Returns a summary and bounded rows; RTP/SMB use fixed tables.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
protocolYes
pcap_fileYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv2.0.0

TDQS

B3/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds useful behavior beyond that – bounded row output, preset fields, and fixed tables for RTP/SMB – but says nothing about pagination, what 'bounded' means relative to the limit param, or the return shape.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two compact sentences with zero filler, and the core action plus output note are front-loaded. Slightly terse given the undocumented parameters, but nothing is wasted.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read-only analysis tool with no output schema, the description is minimally adequate: it conveys the operation, bounded output, and the special protocol handling. However, with 0% parameter coverage and no return-value detail, an agent lacks enough to call it confidently across the 20-value protocol enum.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must carry the load and largely does not. It mentions 'one protocol' and the RTP/SMB table quirk, but never explains the limit parameter's role or bounds, nor adds meaning to the pcap_file input, leaving all three parameters effectively undocumented.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource ('Analyze one protocol') and adds scope detail ('with preset fields and filter'), plus a special-case note for RTP/SMB fixed tables. It is clear what the tool does, though it never names a sibling (e.g. wireshark_extract_fields or wireshark_stats_protocol_hierarchy) that an agent might otherwise confuse it with.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no explicit when-to-use or when-not-to-use guidance, and no alternative tool is named despite many overlapping siblings (extract_fields, search_packets, stats_protocol_hierarchy). Usage is only weakly implied by 'Analyze one protocol'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.