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Selected allows you to customize commands in two ways:
  1. Customize built-in commands - Modify the prompts of any of the customizable built-in commands with your own version to fulfill your specific needs. You can reset them to default at any time.
  2. Create custom commands - Build entirely new commands for your daily tasks that aren’t covered by the built-in commands.

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Command Structure

Each command consists of two key components:
  • System prompt - Defines the overall behavior and role of the command
  • User prompt - Specifies what to do with the input (selected text, attachments, custom prompt)
You can use variables in your prompts to reference:
  • Selected text ({{selectedText}})
  • Attachment text ({{attachmentText}})
  • Custom input from the user ({{inputtedText}})
All available variables can be found in the Variables section of the Commands tab. You can add your own ones if needed.

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Example: Prompt Optimizer

Here’s an example of a custom command that optimizes prompts for AI models:
Custom Commands settings showing command customization interface
  1. Name: Prompt Optimizer
  2. Icon: Choose an icon that represents your command
  3. Conditions:
    • Selected text: required
    • Attachment: ignored
    • Inputted text (Custom prompt): ignored
  4. System prompt: 
    You're a great LLM Prompt Optimizer! Help me optimize the
following prompt:
  5. User prompt: 
    The raw prompt to be optimized is as:

{{selectedText}}
Last modified on December 30, 2025