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MCP server for analyzing network packets captured by Wireshark, providing tools to list network interfaces, retrieve packet summaries, and manage packet capture files.
This server exhibits critical deficiencies across naming, description quality, schema completeness, and parameter documentation. While tool names start with appropriate verbs (list_, get_, clear_), descriptions are minimal and lack context about when to use each tool. Most critically, three of four tools have NO input parameters defined despite being valid JSON Schema objects (empty {}), violating the schema requirement. The one tool with a parameter (get_interface_details_tool) has a parameter but no type declaration in the schema shown. Error handling is minimal, tools return raw exception strings rather than recovery guidance. No output schemas are documented. Security concerns include hardcoded Windows paths, subprocess calls without injection prevention, and file operations that could fail silently.
MCP tool to clear the packet capture file
MCP tool to get detailed information about a specific interface
MCP tool to retrieve packet summaries
MCP tool to list network interfaces
Three tools (list_interfaces, get_packet_summary, clear_packet_file) have empty input schemas '{}' with no parameter definitions. Per HARD SCORING RULES, tools with NO input schema elements must score 0 on schema dimension.
Tool descriptions are generic and lack context. 'MCP tool to list network interfaces' does not explain WHEN to call it, what it returns, or why an agent should prefer it. Descriptions under 20 chars cannot exceed score of 40.
No output schemas documented. LLMs cannot plan downstream operations or extract typed fields from responses. All tools return raw strings (str) with no structured object definition. Violates pattern:tool requirement.
Inferred effective spec: <=2025-11-25.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-22 | F | 38 | <=2025-11-25 | v2 |
| 2026-03-09 | F | 25 | - | v1 |
Error handling returns raw exception messages ('Error reading packet file: [exception]') rather than actionable recovery guidance. Per pattern:recovery-guide, errors must tell the LLM what to do next, not just echo the exception.
Hardcoded Windows paths (C:\Users\Wireshark\Downloads\) in CONFIG dict are inflexible and prevent deployment to other systems. Paths should be configurable via environment variables. Also poses risk if these paths are not writable or don't exist.
get_interface_details_tool has confusing name, 'tool' suffix is redundant and non-standard. Compare against baseline: clear, action-first names like get_interface_details are preferred. Name does not follow verb_noun convention cleanly.
No distinction between similar tools. get_packet_summary returns recent packets from file; list_interfaces returns interfaces. Naming is clear, but descriptions do not explain why an agent would call one vs the other or what the relationship is.
clear_packet_file is DESTRUCTIVE (deletes data) but description makes no mention of irreversibility. Per pattern:command-tool, destructive operations must explicitly state what is destroyed. No confirmation or dry-run pattern offered.
Subprocess calls (wmic, tshark) lack injection prevention. An LLM could pass an interface name like 'test"; rm -rf / #' to get_interface_details_tool and execute arbitrary commands. LLM-provided input must be sanitized.
No pagination for get_packet_summary. If packet file contains thousands of lines, LLM context window could be exhausted. Per pattern:paginated-result, tools returning lists should support limit and offset/cursor parameters.