implementing-zero-trust-network-access

implementing-zero-trust-network-access is a skill for Claude Code, Codex from xalgorix/xalgorix. It costs 59 tokens per session (3,333 once invoked), scanned A, original, Apache-2.0.

A guide to Zero Trust Network Access, an approach that checks a user's identity, device, and context before allowing access to cloud resources. It replaces broad network access such as a traditional VPN with narrower, identity-based access.

In plain words
What is it for?
Use it to configure identity-aware proxies, divide cloud networks into smaller protected areas, and create access rules based on identity, device health, and location.
Why use it?
It reduces the chance that a stolen account or compromised device can reach unrelated systems. It also helps keep cloud workloads private instead of exposing them directly to the internet.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/xalgorix/xalgorix/implementing-zero-trust-network-access
Any agent
npx skills add xalgorix/xalgorix --skill implementing-zero-trust-network-access
Clone the repo
git clone --depth 1 https://github.com/xalgorix/xalgorix

Made for: Claude Code, Codex.

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README.md
[![agentmods](https://agentmods.dev/badge/skills/xalgorix/xalgorix/implementing-zero-trust-network-access.svg)](https://agentmods.dev/skills/xalgorix/xalgorix/implementing-zero-trust-network-access)
Your own site
<a href="https://agentmods.dev/skills/xalgorix/xalgorix/implementing-zero-trust-network-access"><img src="https://agentmods.dev/badge/skills/xalgorix/xalgorix/implementing-zero-trust-network-access.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,333 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00059 $0.03333
Opus 5 $0.00030 $0.01666
Sonnet 5 $0.00012 $0.00667
Haiku 4.5 $0.00006 $0.00333

Measured 2d ago against content hash 9fa603d8357c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implementing-zero-trust-network-access 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 2d 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.

internal/tools/skills/data/cloud-security/implementing-zero-trust-network-access/SKILL.md · 369 lines

How it starts

The opening of the file, as written. The whole thing — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implementing Zero Trust Network Access

When to Use

  • When replacing traditional VPN-based remote access with identity-based access controls
  • When implementing micro-segmentation to limit lateral movement within cloud networks
  • When compliance or security strategy requires zero trust architecture adoption
  • When providing secure access to cloud workloads without exposing them to the public internet
  • When building context-aware access policies based on user identity, device health, and location

Do not use as a complete replacement for network security controls (ZTNA complements but does not replace firewalls and network ACLs), for protecting internet-facing public applications (use WAF), or for IoT device access where identity-based authentication is not feasible.

Common Misconfigurations & Verification

  • Private Endpoint created but public access left on: an Azure Private Link endpoint doesn't isolate the service unless publicNetworkAccess is Disabled on the PaaS resource. Verify with az webapp show --query publicNetworkAccess; resolve the privatelink DNS name from inside the VNet and confirm the public hostname no longer maps to a routable IP.
  • NetworkPolicy the CNI never enforces: kind: NetworkPolicy is silently ignored on clusters using a non-enforcing CNI (plain kubenet). Confirm Calico/Cilium is installed, then prove enforcement by kubectl exec from a non-web-frontend pod against api-server:8080 and watch it time out.
  • Ingress-only segmentation: a policy with policyTypes: [Ingress] and no egress rule still lets a compromised pod exfiltrate outbound. Add an explicit egress allowlist and test that arbitrary outbound connections are dropped.
  • Verified Access endpoint with no real group policy: an endpoint attached to a group whose policy-document is missing or Allow * grants everyone access. Verify the policy gates on verified-access:user/groups and test with a user outside that group (expect deny).
  • Continuous verification that never re-prompts: a SignInFrequency of 4h only matters if persistent browser sessions are off. Confirm persistentBrowser/token lifetime actually forces re-auth, and check /verified-access/access-logs for decision = "deny" entries.
  • Don't decommission the VPN until every app refuses traffic that bypasses the proxy, micro-segmentation drops a tested lateral connection, and break-glass access still works while the IdP is simulated down.

Read the full file on GitHub · 369 lines

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. 2d ago First seen · 369 lines · 59 tokens per session scan A 9fa603d8357c

Subscribe to this mod's changes

implementing-zero-trust-network-access is a skill published in the GitHub repository xalgorix/xalgorix (955 stars, last pushed today), licensed Apache-2.0. It adds 59 tokens to every session and 3,333 once invoked, about $0.0003 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 2026-09-03.

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