Skill Claude CodeCodex
Systematic diagnosis of Kubernetes pod failures — CrashLoopBackOff, OOMKilled, Pending, ImagePullBackOff, and service connectivity issues. Use when the user encounters pods not starting, container restart loops, scheduling failures, or service unreachability in a K8s cluster.
Skill Claude CodeCodex
Design minimal-privilege RBAC for workloads, operators, and human access in multi-tenant clusters.
Skill Claude CodeCodex
Right-size pod resources, configure HPA/VPA/KEDA, and eliminate resource waste in Kubernetes.
Skill Claude CodeCodex
DNS management for Kubernetes — CoreDNS tuning, external-dns automation, split-horizon DNS, and bare-metal DNS design.
Skill Claude CodeCodex
NGINX Ingress Controller patterns — TLS, rate limiting, CORS, rewrites, path-based routing, and MetalLB for bare-metal.
Skill Claude CodeCodex
Implement service mesh for mTLS, traffic management, and observability — Istio and Linkerd patterns for Kubernetes.
Skill Claude CodeCodex
Configure TLS termination with cert-manager — Let's Encrypt, internal CA via Vault PKI, wildcard certs, mTLS between services.
Skill Claude CodeCodex
Design cloud-agnostic private networks — subnet layout, CIDR allocation, zone redundancy, routing, and bare-metal equivalent.
Skill Claude CodeCodex
Implement distributed tracing with OpenTelemetry, Tempo/Jaeger — instrumentation, sampling, and trace-to-log correlation. Use when the user asks about distributed tracing, OpenTelemetry setup, span instrumentation, trace propagation, or connecting traces to logs and metrics.
Skill Claude CodeCodex
Design and maintain Grafana dashboards — service overview panels, SLO tracking, variable templates, dashboard-as-code with Grafonnet/Jsonnet.
Skill Claude CodeCodex
Set up Loki or ELK log aggregation for K8s workloads — structured logging, log routing, and log-based alerting.
Skill Claude CodeCodex
Write production-quality Prometheus alert rules, recording rules, and Alertmanager routing configs.
Skill Claude CodeCodex
Implement SLOs end-to-end in Prometheus — recording rules, burn rate alerts, error budget dashboards, and Sloth/pyrra integration.
Skill Claude CodeCodex
Forecast infrastructure capacity needs — traffic projection, resource headroom calculations, node pool sizing, K8s cluster capacity.
Skill Claude CodeCodex
Design and run chaos experiments in Kubernetes — pod failures, network partitions, resource pressure with LitmusChaos and manual chaos.
Skill Claude CodeCodex
Structured incident command for P0/P1 — roles, timeline, communication templates, and mitigation-first approach.
Skill Claude CodeCodex
Write blameless postmortems with 5-whys RCA, actionable follow-ups, and systematic prevention measures.
Skill Claude CodeCodex
Define SLIs, SLOs, and error budgets; implement burn rate alerts; integrate with Prometheus.
Skill Claude CodeCodex
Design and implement REST APIs with consistent conventions, versioning, error contracts, and security.
Skill Claude CodeCodex
Design and implement async task queues, message consumers, and background job patterns.
Skill Claude CodeCodex
Design relational schemas, write efficient queries, plan indexes, and implement safe migrations.
Skill Claude CodeCodex
Implement structured logging, distributed tracing, and metrics for production-ready backend services.
Skill Claude CodeCodex
Systematic backend debugging — reproduce, isolate root cause, implement fix with regression test.
Skill Claude CodeCodex
When designing a warehouse schema, choosing between modeling approaches, or refactoring an existing model.