Choose your app, then your task
A skill is a reusable workflow, usually organized around a SKILL.md file. It can include references or scripts. It does not guarantee correct results or supply tool access by itself.
The AI skills library shows current app logos and setup options. This guide replaces our older Windsurf-focused instructions; the article URL is retained so existing links still work.
Claude
In Claude, open Customize → Skills and choose Create skill to upload a ZIP. Availability depends on your account and workspace settings. See official Claude setup.
ChatGPT
If your account has Skills, open Plugins → Skills → Create → Upload from your computer. Availability depends on the product, plan and administrator settings. Otherwise, paste text instructions into a conversation and supply your brief. Pasting instructions does not install the package or include scripts and references. See official ChatGPT skill guidance.
Google Antigravity
Keep the complete skill folder under your project’s .agents/skills directory, with SKILL.md directly inside the named folder. Ask the agent to use it for the task. See official Antigravity setup.
Cursor and Claude Code
Cursor uses .cursor/skills/your-skill/SKILL.md for project skills. Claude Code uses .claude/skills/your-skill/SKILL.md. Keep supporting files in the same package and check the app settings. Invocation differs by app; there is no universal @skill command. Read the Cursor guide or .