How to Setup AI Agent Skills for Better Code | TRAE SOLO

AI agent skills are reusable, named workflows stored as markdown files that AI coding tools can dynamically look up and execute when needed — rather than loading all instructions into context at once. Using Trae Solo as a demo platform, the tutorial walks through installing pre-built skills from a marketplace, generating custom skills via prompts (e.g., a FastAPI backend skill with routing conventions, a test-API skill using curl, a frontend UI skill), and running them to build a full CRUD library app. The video also covers creating non-coding skills like a daily AI news brief, and clarifies the difference between skills (dynamically loaded, task-specific), rules (always loaded at chat start), and MCP servers (tool exposure).