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Network Protocol Diagnostics

Category: Security  ·  Sub-category: network-security  ·  Last updated:
type:debug
Diagnose modern network protocol failures with evidence, including HTTP version negotiation, QUIC and UDP reachability, TLS and ALPN, Alt-Svc, browser networking, WebRTC ICE/STUN/TURN, MoQ relay logs, proxies, CDNs, firewalls, NAT, packet captures, qlog, server logs, and stack-specific handoffs.
Security AStatic scan found no risk patternsHow grading works ›

What this skill does

Network Protocol Diagnostics is a community-contributed Claude Code skill in the network-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/network-protocol-diagnostics/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Network Protocol Diagnostics Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 184,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/network-protocol-diagnostics
curl -L https://claudskills.com/skills/network-protocol-diagnostics/SKILL.md \
  -o ~/.claude/skills/network-protocol-diagnostics/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/network-protocol-diagnostics/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/network-protocol-diagnostics/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\network-protocol-diagnostics\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Network Protocol Diagnostics Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/network-protocol-diagnostics/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Network Protocol Diagnostics skill do?
Diagnose modern network protocol failures with evidence, including HTTP version negotiation, QUIC and UDP reachability, TLS and ALPN, Alt-Svc, browser networking, WebRTC ICE/STUN/TURN, MoQ relay logs, proxies, CDNs, firewalls, NAT, packet captures, qlog, server logs, and stack-specific handoffs.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Network Protocol Diagnostics skill?
Use Network Protocol Diagnostics when your Claude Code task falls under the Security category — specifically in the network security area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Network Protocol Diagnostics" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Network Protocol Diagnostics skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Network Protocol Diagnostics is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
gaelic-ghost. (2026). Network Protocol Diagnostics [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/network-protocol-diagnostics/
BibTeX
@misc{network-protocol-diagnostics-2026,
  author    = {gaelic-ghost},
  title     = {Network Protocol Diagnostics [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/network-protocol-diagnostics/}
}

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Security scan

Grade A · scanned 2026-08-13 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/network-protocol-diagnostics/#security)

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More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
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