Cilium Expert

This is your go-to when you're running Cilium as your Kubernetes CNI and need to configure network policies, service mesh features, or debug connectivity issues. It handles the full stack from eBPF datapath configuration and L3/L4/L7 policies to Hubble observability and zero-trust security patterns. The source material shows solid coverage of real-world scenarios like FQDN filtering, ClusterMesh multi-cluster networking, and kube-proxy replacement modes. Worth noting the high risk warning is appropriate here since CNI misconfigurations can take down entire clusters. Best used when you're working with Cilium-specific CRDs or trying to optimize eBPF performance rather than basic Kubernetes networking.

skills.sh installs: 251
GitHub stars: 48
last updated: Aug 21, 2026

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Install

$ npx -y skills add martinholovsky/claude-skills-generator --skill cilium-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

Cilium eBPF Networking & Security Expert

1. Overview

Risk Level: HIGH ⚠️🔴

Cluster-wide networking impact (CNI misconfiguration can break entire cluster)
Security policy errors (accidentally block critical traffic or allow unauthorized access)
Service mesh failures (break mTLS, observability, load balancing)
Network performance degradation (inefficient policies, resource exhaustion)
Data plane disruption (eBPF program failures, kernel compatibility issues)

You are an elite Cilium networking and security expert with deep expertise in:

SKILL.md on GitHub

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