configuring-microsegmentation-for-zero-trust

configuring-microsegmentation-for-zero-trust is a skill for Claude Code from 26zl/cybersec-toolkit. It costs 50 tokens per session (1,663 once invoked), scanned A, original, MIT.

A method for splitting access between individual applications or workloads, rather than trusting everything on the same network. Policies use workload identity and enforce least-privilege communication in zero-trust systems.

In plain words
What is it for?
Use it to design, enforce, and test workload-to-workload access policies with platforms such as VMware NSX, Illumio, Guardicore, or Calico.
Why use it?
It prevents an attacker who gets into one workload from freely reaching others. This provides finer control than broad network segments such as VLANs.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the cybersec-toolkit plugin — 197 skills, 2 hooks, 1 MCP server shipped together

Good fit Use it to design, enforce, and test workload-to-workload access policies with platforms such as VMware NSX, Illumio, Guardicore, or Calico.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust
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 26zl/cybersec-toolkit --skill configuring-microsegmentation-for-zero-trust
Clone the repo
git clone --depth 1 https://github.com/26zl/cybersec-toolkit

Made for: Claude Code.

Or install cybersec-toolkit, the plugin that ships this one along with the rest of its 197 skills, 2 hooks, 1 MCP server.

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 configuring-microsegmentation-for-zero-trust

README.md
[![agentmods](https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust/github.svg)](https://agentmods.dev/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust)
Your own site
<a href="https://agentmods.dev/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust"><img src="https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for configuring-microsegmentation-for-zero-trust

Your own site · 80×15
<a href="https://agentmods.dev/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust"><img src="https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/configuring-microsegmentation-for-zero-trust.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,663 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 $0.00050 $0.01663
Opus 5 $0.00025 $0.00831
Sonnet 5 $0.00010 $0.00333
Haiku 4.5 $0.00005 $0.00166

Measured 8d ago against content hash 3f60a7fda2de, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

configuring-microsegmentation-for-zero-trust 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/agent.py, scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/configuring-microsegmentation-for-zero-trust/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Configuring Microsegmentation for Zero Trust

Prerequisites

  • Understanding of zero trust principles (NIST SP 800-207)
  • Knowledge of network segmentation concepts
  • Familiarity with firewall and SDN technologies
  • Experience with VMware NSX, Illumio, Guardicore, or Cisco ACI

Overview

Microsegmentation divides a network into granular security zones, enforcing least-privilege access between workloads at the application layer rather than relying on traditional VLAN-based segmentation. In a zero trust architecture, microsegmentation eliminates implicit trust between workloads within the same network segment, preventing lateral movement even after an attacker gains initial access.

This skill covers designing microsegmentation policies using workload identity, implementing host-based and network-based enforcement, and validating segmentation effectiveness with tools like Illumio Core and VMware NSX.

When to Use

  • When deploying or configuring configuring microsegmentation for zero trust capabilities in your environment
  • When establishing security controls aligned to compliance requirements
  • When building or improving security architecture for this domain
  • When conducting security assessments that require this implementation

Prerequisites

  • Familiarity with zero trust architecture concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Architecture

Microsegmentation Models

  1. Network-Based (VMware NSX, Cisco ACI): Distributed firewall rules enforced at the hypervisor or network fabric level
  2. Host-Based (Illumio, Guardicore): Agent-based enforcement at the OS level using iptables/WFP rules
  3. Container-Based (Calico, Cilium): Network policies enforced at the pod/container level in Kubernetes
  4. Application-Based (Zscaler Workload Segmentation): Identity-based segmentation based on software identity rather than IP addresses

Read the full file on GitHub · 179 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 179 lines · 50 tokens per session scan A 3f60a7fda2de

Subscribe to this mod's changes

configuring-microsegmentation-for-zero-trust is a skill published in the GitHub repository 26zl/cybersec-toolkit (54 stars, last pushed today), licensed MIT. It adds 50 tokens to every session and 1,663 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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