Agent Skills guides

The definition, how skills load in three tiers, and how they differ from prompts and MCP servers.

The four Claude Code primitives separated, with a comparison table and decision tree.

The shorter three-way primer for when you do not need subagents in the picture.

The install command for each agent — Claude Code, Cursor, Codex, Gemini CLI, Antigravity.

Write your own SKILL.md — folder, trigger-rich description, instructions, and a copy-paste template.

The frontmatter fields, when to add scripts, and the description pattern that makes a skill trigger.

The best agent Skills for reviewing code before merge — structured, severity-tagged reviews and security-first passes across Claude Code, Cursor, and Codex.

The best agent Skills for security review and vulnerability detection — firm-grade static analysis (CodeQL, Semgrep), Kubernetes hardening, and real-exploit validation.

The best agent Skills for writing and running tests — Playwright web-app testing, browser automation patterns, and test-driven-development workflows.

The best agent Skills for DevOps work — CI/CD, containers, blue-green and canary deploys, Terraform, and Kubernetes hardening across AWS, GCP, and Azure.

The best agent Skills for building production-grade UIs — distinctive design direction, brand systems, theming, and shadcn/Tailwind defaults that avoid generic AI output.

The best agent Skills for SEO and content ops — keyword research, technical audits, GEO/AEO for AI search, blog drafting, and AI-text humanization.

The best agent Skills for marketing teams — landing-page CRO, copywriting, LinkedIn content, email sequences, and the SEO/GEO bundle that powers organic growth.

The complete guide to deploying and publishing a website from chat using SKILL.md agent Skills — which skill to use per host (Vercel, Netlify, Cloudflare, Firebase, GitHub Pages), per agent, with step-by-step and a platform matrix.

The six best verified agent Skills for deploying and publishing websites in 2026, ranked by what they deploy, who maintains them, and which agents they support.

Use the vercel-deploy-claimable Skill to ship a site to a live Vercel URL from Claude Code or Cursor, then claim it into your own account.

Use Netlify's first-party netlify-deploy Skill to authenticate, create Deploy Previews, and promote a production deploy from Claude Code.

Use Cloudflare's first-party platform Skill to deploy Workers and Pages, configure Wrangler, and manage KV/D1/R2 from chat.

Use the github-pages Skill to enable Pages, generate the GitHub Actions workflow, and set up a custom domain for a static site straight from a repo.