Create new Claude Code lifecycle hook (PreToolUse/PostToolUse/Stop/SessionStart) with bash + hooks.json. Triggers: create hook, lifecycle hook, PreToolUse, PostToolUse, hook event.
CI/CD: GitHub Actions, GitLab CI, Jenkins, caching, blue-green, canary. Triggers: CI, CD, pipeline, GitHub Actions, workflow YAML, release, canary, rollout.
Detect/generate/debug CI pipeline config (GitHub Actions, GitLab CI). Triggers: CI setup, build pipeline, GitHub Actions config, debug CI, GitLab CI.
C#/.NET: LINQ, async/await, DI, records, nullable refs, ASP.NET Core, EF Core, MediatR. Triggers: C#, .NET, dotnet, ASP.NET, EF Core, LINQ, record type, IServiceCollection.
Docker/K8s: Dockerfile, multi-stage, compose, manifests, Helm. Triggers: Docker, Dockerfile, container, Kubernetes, k8s, compose, Helm, pod.
SEO validator: meta/OG, Schema.org, hreflang, Core Web Vitals, crawlability. Triggers: SEO, meta tags, Schema.org, hreflang, LCP, INP, CLS, Core Web Vitals, sitemap, crawlability.
Systematic debugging via logs, health checks, hypothesis-driven investigation. Triggers: debug, error, trace root cause, fix bug, reproduce symptom, investigation.
Explains code/architecture with Mermaid diagrams and sequence flows. Triggers: what does X do, how does Y work, explain code, sequence diagram.