Exercise 9: Create a Project, Gem, or Custom GPT
Every time you start a new chat with an AI, it knows nothing about you. You have to re-explain who you are, what you need, and how you like things. It's like calling a doctor's office every time and having to repeat your entire medical history before asking a question.
Projects, Gems, and Custom GPTs solve this. They let you create a saved version of an AI assistant that already knows your context — and remembers it every single conversation.
| Tool | Feature name | Where to find it |
|---|---|---|
| Claude | Projects | Left sidebar → Projects → New Project |
| ChatGPT | Projects | Left sidebar → Projects → New Project |
| Gemini | Gems | Left sidebar → Gems → New Gem |
| ChatGPT | Custom GPTs | Explore GPTs → Create (more advanced, shareable) |
Once set up, you open your project or gem instead of starting a regular chat — and the AI picks up exactly where you left it, already knowing your situation.
When it's worth setting one up
The sweet spot is anything you return to regularly. If you find yourself re-explaining the same background more than twice, it's time for a project.
The exercise: build your setup instructions
The hardest part of creating a project is writing the instructions — the paragraph that tells the AI who you are and what you need. Use the prompt below to have AI write those instructions for you.
Prompt
I want to create a [tool] called '[name]' to help me with [use case]. Write the setup instructions I should paste into it — a short paragraph that tells the AI who I am, what I need help with, what context it should always have, and how I want it to respond. Make it specific and practical, not generic.
Copy the output and paste it directly into your project's instructions field. Then customize anything that isn't quite right. You can always update the instructions later — a project isn't set in stone.
How to set it up (step by step)
In Claude:
- Click Projects in the left sidebar
- Click New Project and give it a name
- Paste your instructions into the Project instructions field
- Optionally upload relevant documents (medical records summary, family notes, etc.)
- Start chatting — Claude will use your instructions in every conversation in that project
In Gemini:
- Click Gems in the left sidebar
- Click New Gem and give it a name
- Paste your instructions into the instructions field
- Save, then open your Gem to start chatting
In ChatGPT:
- Click Projects in the left sidebar
- Click New Project, give it a name
- Click the settings icon to add custom instructions
- Paste your instructions and save
Projects and Gems are private to you — no one else can see them. You can create as many as you like, and delete them just as easily.