Replying to YouTube comments sounds simple until the comments start piling up. Some deserve more than a quick "thanks," but by the time you are done recording, editing, posting, and answering people, it can be hard to keep the same level of energy for every thoughtful response.
That is the problem I wanted to solve: not replacing real replies, but creating a shortcut that gives me a useful first draft so I can stay engaged with people without staring at a blank reply box every time.
Quick Answer
The shortcut I built uses Apple Shortcuts, AppleScript, Safari, and Gemini to create AI-assisted YouTube comment replies. I select a comment on the YouTube page, run the shortcut with a keyboard shortcut, and it sends the selected comment plus the video URL into Gemini with a prompt that asks for a personal two- or three-sentence reply.
The important part is that I still review and edit the response before posting. This is not full automation. It is a head start for creator engagement, especially when I want to answer people thoughtfully but do not want every reply to start from scratch.
What The Shortcut Does
The workflow starts on the YouTube comments page. I open the relevant video, scroll down to the comments, and select the text of the comment I want to answer.
From there, I run the shortcut using a keyboard shortcut. The script grabs the selected comment and the current page URL, then opens Gemini and drops in a prepared prompt.
The prompt asks Gemini to respond in a personal tone as if I am the content creator. It also tells Gemini to acknowledge the sentiment in the comment, keep the reply to two or three sentences, and avoid sounding like it is talking about the video from the outside.
- Select the YouTube comment text.
- Run the Apple Shortcut.
- Send the comment and video URL to Gemini.
- Generate a short suggested reply.
- Review, tweak, and post manually.
Why I Do Not Fully Automate Replies
The goal here is not to let AI answer every comment for me. That would miss the point of replying in the first place. People leave comments because they are reacting to something specific, asking a question, or sharing their own experience.
What I want is a starting point. When comments build up, it is easy to put off responding because every answer takes a little mental energy. A draft gives me something to react to, edit, and make my own.
In the demo, Gemini produced a reply that was close but not quite right. One phrase it used was something I would not normally say, so I would change it before posting. That is exactly why this workflow works best as an assistant, not an autopilot.
What The Prompt Handles
A big part of making this useful was tightening the prompt. Through trial and error, I had to give Gemini a few clear rules so the response felt more like a real comment reply and less like a generic summary.
The prompt tells it to write in a personal tone, acknowledge what the commenter said, and keep the answer short. It also tells Gemini not to mention the video directly, because a comment reply should feel like a conversation with the person, not a recap of the upload.
That wording matters. Without those guardrails, AI replies can become too polished, too long, or too detached from the actual conversation.
How I Built It
The shortcut runs an AppleScript inside Apple Shortcuts. I made the prompt a variable at the beginning so it is easy to tweak without digging through the whole script every time.
The script works with Safari, grabs the needed pieces from the page, sets up the clipboard, and uses keystrokes to place the generated prompt into Gemini. I also ran into a small limitation where Command-V did not work the way I wanted, so I used keystrokes instead.
This is not meant to be a polished product. It is a practical desktop workflow that gets the job done with the tools already available on my Mac.
Free Tools Versus Paid APIs
One reason I approached it this way was cost. There are paid APIs and services that can help with YouTube transcript access, but I wanted to keep this workflow free if possible.
The tricky part is that YouTube transcript access is not as straightforward as it seems. Some free options do not work smoothly, and some sites expose endpoints that could be used, but I do not want to build something that leans on someone else's service in a way that could cost them money.
In this version, the workflow uses Google's own site behavior rather than a paid transcript API. It is a practical workaround, but it also comes with the usual caveat: workflows that depend on web pages can break if the page changes.
Where This Helps Most
This kind of shortcut is most useful for comments that deserve a real response but do not need a brand-new essay. If someone shares that an update caused problems, asks about a workflow, or explains what worked for them, the shortcut can help draft a friendly reply that I can shape into something more personal.
It is less useful for sensitive comments, detailed technical troubleshooting, or anything where I need to verify facts before answering. In those cases, I would rather slow down and write the reply myself.
The best use case is reducing friction. It helps me keep up with engagement while still leaving the final judgment, tone, and posting decision in my hands.
Key Takeaways
- The shortcut uses Apple Shortcuts, AppleScript, Safari, and Gemini to draft YouTube comment replies.
- It works by selecting a comment, grabbing the video URL, and sending both into Gemini with a prepared prompt.
- The workflow is meant to create a starting point, not fully automate creator replies.
- AI-generated replies still need review because the wording may not sound like you.
- Keeping the prompt editable makes it easier to adjust tone and structure over time.
- Free transcript and YouTube data workflows can be useful, but they may be less reliable than paid API-based options.
Watch the Video
The video above above to see the shortcut run on a real YouTube comment, including how the prompt is passed into Gemini and how I decide what to edit before posting.
