You're building with AI. You've heard about prompts. You've heard about agents. Now everyone's talking about skills. Claude Code has .claude/skills/. Cursor has similar concepts. Every AI coding tool is adopting some version of the pattern. But what actually is a skill? How is it different from a prompt? Where does an agent fit? And which one should you use for your specific problem? This article cuts through the confusion. No marketing fluff, no hand-waving — just clear definitions, concrete...
