Installation / ChatGPT
○OpenAI · Custom GPT / Chat
Install a skill in ChatGPT
ChatGPT doesn't read project files from disk, so there's no path to resolve — a skill lives in a Custom GPT's instructions for repeat use, or pasted into a chat for one-off use. (For OpenAI's file-based agent, see Codex.)
Two ways to load a skill
Pick based on whether you'll reuse the skill.
A
Custom GPT — best for a skill you'll reuse across clients.
1. ChatGPT → Explore GPTs → Create
2. In "Instructions", paste the full skill markdown
3. Name the GPT after the skill
4. Save → it gates for inputs every time you open itB
Single chat — fastest for a one-off run.
Paste the skill markdown as your first message, then add:
"Use the skill above. Ask me for any inputs you need first."Gotcha: a skill pasted into a normal chat only lasts that conversation. For anything you'll run more than once, build the Custom GPT — it persists and behaves like the file-based setups.