Build 5 Custom Claude Code Skills That Save Hours Every Week

You type the same instructions into Claude Code every day. "Run the tests." "Check for security issues." "Summarize this PR." Every repeated prompt is wasted context and wasted keystrokes. Claude Code skills fix this. A skill is a markdown file with YAML frontmatter that turns any workflow into a reusable /slash-command . Type /deploy instead of explaining your deployment steps for the tenth time. Type /fix-issue 42 instead of copy-pasting your bug-fixing checklist. This article walks through 5 practical skills you can build right now. Each one takes under 10 minutes and works immediately after creating the file. How Skills Work A skill lives in a directory with a SKILL.md file as its entrypoint. The SKILL.md has two parts: YAML frontmatter that configures the skill, and markdown content with instructions Claude follows when the skill runs. ~/.claude/skills/my-skill/ ├── SKILL.md # Required — instructions + config ├── template.md # Optional — templates Claude fills in └── scripts/ └──