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Browser extensionChrome Web Store listing coming soon

Your best prompts, one // away

Save a prompt once, then type // in ChatGPT, Claude, Gemini or Grok to put it in the message box.

The extension is not in the Chrome Web Store yet. The install link goes here when the listing is live. Your shortcuts are saved to your account in the meantime.

How it works

  1. 01

    Save a prompt

    Find one on Deftro and choose Add to my shortcuts, or add one you wrote. Each shortcut gets a short name, like //linkedin.

  2. 02

    Type // in the chatbot

    In the message box, type // and the start of the name, then pick it with Enter. Ctrl+Shift+K (Cmd+Shift+K on a Mac) opens the list too.

  3. 03

    Fill in the blanks, then send

    If the prompt has blanks like [TOPIC], a short form asks for them. The text goes into the box and waits there: nothing is sent until you press send.

Works on

The extension runs on these chatbot websites and nowhere else.

  • ChatGPTchatgpt.com
  • Claudeclaude.ai
  • Geminigemini.google.com
  • Grokgrok.com

Prompts worth a shortcut

Anything you paste into a chatbot more than once. These four are made-up examples, to show the idea.

  • Presentation outline

    //slides

    Outline a 10-slide presentation about [TOPIC] for [AUDIENCE]. One title and three short points per slide.

  • Image prompt

    //image

    A [STYLE] illustration of [SUBJECT], soft natural light, plain background, wide 16:9 frame.

  • LinkedIn post

    //linkedin

    Write a LinkedIn post about [NEWS]. Friendly, under 120 words, no hashtags, end with a question.

  • Email reply

    //reply

    Reply to the email below. Say [ANSWER], keep it under 80 words and sign off as [NAME].

What it can see

  • It looks only at the few characters before your cursor, to notice //. It does not read your conversations or the chatbot's answers.
  • It runs only on the sites listed above, keeps no browsing history and has no analytics.
  • It inserts text and never sends a message for you.
  • Its sign-in can read and add your shortcuts and search, but cannot rename, remove or publish anything. Revoke it any time in Settings.

Read what the extension stores and sends for the details, and manage your shortcuts in account settings.