Updated Assistants page

docs/src/pages/docs/assistants.mdx

@@ -20,15 +20,49 @@ keywords:
 import { Callout, Steps } from 'nextra/components'
 
 # Assistants
-This guide explains how to set the Assistant instructions in the Jan application.
+Assistant is a configuration profile that determines how the AI should behave and respond to your inputs. It consists of:
+- A set of instructions that guide the AI's behavior
+- Model settings for AI responses
+- Tool configurations (like [knowlegde retrieval](/docs/tools/retrieval) settings)
+
+Currently, Jan comes with a single default Assistant named **Jan**, which is used across all your threads. We're working on the ability to create and switch between multiple assistants. 
+
+## Set Assistant Instructions
+By modifying assistant instructions, you can customize how Jan understands and responds to your queries, what context it should consider, and how it should format its responses.
+
+1. In any **Thread**, click the **Assistant** tab in the **right sidebar**
+2. Enter your custom instructions in **Instructions** input field
+3. Your instructions will be applied to the current thread right after you click out of the instruction field .
+
+![Set Instructions](./_assets/quick-start-02.png)
+
+**Best Practices for Instructions:**
+- Be clear and specific about the desired behavior
+- Include any consistent preferences for formatting, tone, or style
+
+**Examples:**
+
+Here are some example instructions you might set:
+```
+Act as a software development mentor focused on Python and JavaScript. 
+Provide detailed explanations with code examples when relevant.
+Use markdown formatting for code blocks.
+```
+```
+Respond in a casual, friendly tone. Keep explanations brief and use simple language.
+Provide examples when explaining complex topics.
+```
+
+
+## Apply Instructions to New Threads
+You can save Assistant instructions to be automatically applied to all new threads:
+
+1. In any **Thread**, click the **Assistant** tab in the **right sidebar**
+2. Toggle the **Save instructions for new threads** slider 
+3. When enabled, all **new threads** will use these instructions as their default, old threads are not affected
 
-## Applied the Instructions to All Threads
-To apply the instructions to all the new threads, follow these steps:
-1. Select a **Thread**.
-2. Click the **Assistant** tab.
-3. Toggle the **slider** to ensure these instructions are applied to all new threads. (Activate the **Experimental Mode** feature to enable this option.)
 <br/>
 
-![Assistant Slider](./_assets/assistant-slider.png)
+![Assistant Slider](./_assets/assistant-01.png)
 
 <br/>