Using Prompts
Prompts are reusable instructions you can apply to your conversations. Instead of repeating yourself every time, you save your instructions once and activate them whenever you need them.
Two types of prompts
System prompts set the AI’s personality and behavior. When you activate a system prompt on a conversation, it acts as a persistent persona: the AI will follow those instructions for every message in the conversation. Use system prompts when you want the AI to always respond in a specific role, tone, or style (for example, “You are a concise code reviewer” or “Respond only in formal French”).
User prompts are templates for tasks you do repeatedly. They appear in the chat input so you can send them as a message with one click. Use user prompts for things like “Summarize the key points of the text I’m about to share” or “Write unit tests for the code below.”
The prompt library
The library at /prompts is where all your prompts live, along with prompts shared publicly by other Magus users.
Browsing and searching
Use the search bar at the top of the library to find prompts by name or description. You can also filter by tags to narrow down to a specific topic or use case.
Each prompt card shows the name, a short description, and any tags. Click a card to see the full content before deciding to use it.
Favorites
Click the star icon on any prompt to add it to your favorites. Favorited prompts show up in a dedicated section at the top of the library and are also accessible directly from the prompt selector inside a conversation. This makes it quick to activate the prompts you use most often.
Activating a prompt on a conversation
Activating a system prompt
To give the AI a persona for an entire conversation, open the conversation settings (the gear icon in the conversation header) and select a system prompt. The prompt will be applied immediately and persist for all subsequent messages.
You can also activate a system prompt from the library: open a prompt and click Activate on conversation, then choose which conversation to apply it to.
To remove the system prompt, go back to conversation settings and clear the selection.
Using a user prompt
User prompts are inserted into the chat input. From inside a conversation, click the prompt selector (the lightning bolt or bookmark icon near the chat input) to browse and search your library. Click any user prompt to insert its text into the input field, where you can edit it before sending.
Tags and filtering
Tags help you organize and find prompts. In the library, click any tag to filter the list to prompts with that tag. You can combine a tag filter with a search query to narrow down further.
When creating or editing a prompt, you can add multiple tags to make it easier to find later.