Prompts lists every prompt in your workspace, with its product, type, status and current version. Each prompt keeps a full history: every time you save a change to the prompt, model or settings, Nucleus adds a new version and keeps the ones before it, so you can compare them or go back. Use the search box and the product, type and status filters above the list to find a prompt, then select it to open it.
Before you start
Tenant Owners and Workspace Admins can create prompts, go back to an earlier version and turn a prompt off. Workspace Members can open, edit and try them. Every prompt is filed under a product and a type, which Tenant Owners and Workspace Admins set up in Nucleus settings.
Create a prompt
Start a prompt
Select Prompts, then New prompt.
Name it
Enter a Prompt Name your team will recognise.
Choose the product
Choose the Product.
Choose the type
Choose the Type.
Describe it
Add a Description if you want one. It shows under the name in the list.
Write the prompt
Under Content, write the instruction.
Mark what changes
Put anything that changes from one use to the next in double braces, such as {{ticket}}.
Create it
Select Create Prompt.
To put the first version in dev or staging straight away, choose Dev or Staging under Environment before you create it. Otherwise leave it at None.
The prompt now appears in Prompts as Active. Next, try it in the playground.
To insert a variable without typing the braces, select Variables.
Try a prompt in the playground
The playground sends the prompt to the AI model and shows you the answer, without changing the prompt.
Open the prompt
Select Prompts, then the prompt.
Open the playground
Select Run in playground.
Fill in the variables
Enter a value for each variable the prompt uses.
The answer appears under Output, with the model used and how long it took. Each run is a real request to the model. Next, save a new version if you want to change the prompt.
Save a new version
The Model list shows the models your workspace allows for Nucleus. Tenant Owners and Workspace Admins manage them in Studio settings, under AI Models.
Open the prompt
Select Prompts, then the prompt. The newest version opens in the editor.
Change the prompt
Edit the text under Prompt if you want to change it.
Change the model
Change the Model if you want.
Change the temperature
Change the Temperature if you want.
Change the max tokens
Change the Max tokens if you want.
Say what changed
Enter a Commit message, such as “Asks for a reason with each priority”.
The new version appears at the top of Version history, marked Current, with your message and your name. Next, compare it with the version before, or release it.
Select Expand above the prompt to edit it full screen. Press Escape to close it.
Compare two versions
Open the comparison
On the prompt, select Compare.
Pick the first version
Choose a version in the first list.
Pick the second version
Choose a version in the second list. Nucleus highlights what changed in the prompt, the model, the settings and the commit message.
Choose the view
Select Split to see the versions side by side, or Unified to see them in one column.
You are back in the editor. Next, go back to an earlier version if the older one was better.
While comparing, press the up and down arrow keys, or J and K, to jump between changes.
Go back to an earlier version
Select any version in Version history to read it. Older versions are read-only. Tenant Owners and Workspace Admins can bring one back.
Find the version
In Version history, find the version you want back.
Revert
Select Revert on that version.
Confirm
Confirm that you want to revert.
Nucleus adds a new version with the older content and makes it current, so nothing in the history is lost. Next, release it.
Turn a prompt off
Tenant Owners and Workspace Admins can turn a prompt off and on again.
Open the prompt
Select Prompts, then the prompt.
Deactivate it
Select Deactivate.
Confirm
Confirm that you want to deactivate it.
The prompt now shows as Inactive. It stays in your list with all its versions.
To turn it back on:
Open the prompt
Select Prompts, then the prompt.
Activate it
Select Activate.
Next, check the health of your active prompts.
Troubleshooting
Change the prompt, the model or a setting, and enter a Commit message. Nucleus only saves a version that differs from the one before.
A Reason to start in Staging box appears
A new prompt has no evaluation yet, so it has not passed the quality check for staging. Write why it should start there, or choose Dev instead.
Nucleus says "Prompt name already exists"
Another active prompt in your workspace has that name. Choose a different Prompt Name.
Nucleus says "This name is reserved by a platform prompt"
The name belongs to one of Studio’s built-in prompts. Choose a different Prompt Name.
The Type list says "No types in this product"
Ask a Tenant Owner or Workspace Admin to add a type for that product in Nucleus settings.
The Model list says "No models configured"
Your workspace has no models allowed for Nucleus yet. Ask a Tenant Owner or Workspace Admin to allow one in Studio settings, under AI Models.
Only Tenant Owners and Workspace Admins can create prompts. Ask one of them to create it, then you can edit it.