Network diagnostics

Network diagnostics is a skill for Claude Code, Codex from zmustafa/AzureSupportAgent. It costs 29 tokens per session (226 once invoked), scanned A, original, MIT.

A step-by-step method for finding where a network connection fails, from name lookup and routing through security controls, encryption, and the application.

In plain words
What is it for?
It helps investigate DNS, TCP, TLS, HTTP, private endpoints, firewalls, routing, load balancers, and related cloud network settings.
Why use it?
It narrows a connectivity problem to the failing layer instead of treating every failure as a general network outage.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps investigate DNS, TCP, TLS, HTTP, private endpoints, firewalls, routing, load balancers, and related cloud network settings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zmustafa/azuresupportagent/network-diagnostics
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add zmustafa/AzureSupportAgent --skill network-diagnostics
Clone the repo
git clone --depth 1 https://github.com/zmustafa/AzureSupportAgent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Network diagnostics

README.md
[![agentmods](https://agentmods.dev/badge/skills/zmustafa/azuresupportagent/network-diagnostics.svg)](https://agentmods.dev/skills/zmustafa/azuresupportagent/network-diagnostics)
Your own site
<a href="https://agentmods.dev/skills/zmustafa/azuresupportagent/network-diagnostics"><img src="https://agentmods.dev/badge/skills/zmustafa/azuresupportagent/network-diagnostics.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 226 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.00226
Opus 5 $0.00015 $0.00113
Sonnet 5 $0.00006 $0.00045
Haiku 4.5 $0.00003 $0.00023

Measured 8d ago against content hash 234b1be9ec5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

Network diagnostics scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

backend/app/agent/skills/network-diagnostics/SKILL.md · 16 lines

What it actually says

Network diagnostics

  1. Define source, destination, protocol, port, SNI/host header, path, expected resolution, and failure time.
  2. Test in layers: DNS, route, ICMP when meaningful, TCP, TLS, then HTTP/application behavior.
  3. Correlate effective routes, NSGs, Azure Firewall, peering, private DNS links, private endpoints, load balancers, and application gateways.
  4. Prefer a sandbox inside the workload VNet for private-path evidence; public platform probes cannot prove private reachability.
  5. Treat ping loss as inconclusive where ICMP is blocked; a successful TCP/TLS probe is stronger evidence.
  6. Record exact observed status, address, certificate/SNI result, and failing hop/control.
  7. Recommend the smallest reversible correction and keep network mutations behind approval.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 16 lines · 29 tokens per session scan A 234b1be9ec5d

Subscribe to this mod's changes

Network diagnostics is a skill published in the GitHub repository zmustafa/AzureSupportAgent (45 stars, last pushed 2d ago), licensed MIT. It adds 29 tokens to every session and 226 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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