AI Agent Updates My Site Faster Than SNS! —— Antigravity × GitHub Pages

Introduction: Why This Blog Isn't Note or WordPress

This very article was written entirely through simple chat commands. An AI agent structured the text, generated the HTML, and pushed it to GitHub to publish. All I did was provide the vision and check the final output.

So why did I start this blog on a static site instead of Note, WordPress, or even X (formerly Twitter)? The answer is simple: with AI agents, updating my own site is actually faster and easier than writing an SNS post. And there is one more thing—a quiet but deliberate strategy to let my own content build up as long-term SEO assets.

The Reality: The Friction of SNS Posting and the Agent Breakthrough

In 2026, using AI to write code or draft prose is nothing new. Fire up a web app like ChatGPT or Claude, and anyone can get decent results.

However, the biggest hurdle for indie developers with zero IT experience wasn't the AI's answer itself—it was the massive friction of reflecting that answer in their actual project.

Looking back, tools like GitHub Copilot and Gemini in VSCode were already well-established by 2025. In game engines like Ren'Py, having the AI suggest the next line of code was indeed convenient.

But that was merely "an assistant inside the editor." Creating the files yourself, copy-pasting the AI's output, saving, managing it with Git, and deploying—this invisible wall between "the AI and the local files" remained tall and incredibly tedious for IT novices.

The turning point came between February and March of 2026, when I invited the AI agent "Antigravity" into my repository to write a novel for the Hayakawa SF Contest.

What I experienced was a profound "capacity for context retention" that web-based AI apps could never hope to match. No need to copy-paste past reference materials every single turn. No risk of the AI losing track of the overall project architecture. The agent moved freely within my repository, reading docs, updating drafts, and building out the structure autonomously.

"It's just incredible to watch the AI read, create, and update scripts right on my local PC. Scares me a little, though, lol."

Even more revolutionary is the agent's ability to operate a browser (Chrome) just like a human. It doesn't just run search queries; if needed, it boots up the browser, navigates sites, gathers data, and integrates it directly into the project. This is a level of capability unique to an agent with "hands and feet," something a web app simply cannot do.

Of course, this isn't a magical, foolproof solution. The agent's context window still has limits. It is absolutely essential for the human to steer the reins, prompt correctly, and supply the right reference documents. I still use web-based apps and NotebookLM depending on the task.

Yet, by centering Antigravity in the project, the massive hours previously wasted on copying and pasting have shifted entirely into meaningful, high-level creative experimentation.

The Discovery: Reversing the Effort of Site Updates vs. SNS

After submitting the novel, I transitioned back to my ongoing mystery game project, Kamiya Detective Agency. Here, another eye-opening experience was waiting.

Usually, when sharing updates, people flock to platforms like Note or X. But for someone like me who isn't a natural writer, staring at external posting forms, copy-pasting AI text, and formatting it was surprisingly stressful.

Yet, in the Antigravity ✕ GitHub Pages environment? All I do is chat: "Write up my thoughts on this latest dev run and publish it using the usual template." The AI generates the HTML, organizes the directories, commits, and pushes it out to the world.

"Updating my own site via AI is actually vastly easier than copy-pasting into an external SNS." A complete, unbelievable reversal of effort.

The Core: Why GitHub Pages ✕ AI Is the Ultimate Deployment Architecture

Why GitHub Pages now? Because the platform's extreme simplicity aligns perfectly with the core characteristics of AI agents.

Trying to get an AI to manage traditional hosting or a complex CMS (like WordPress) introduces a wall of fragile steps: logging in, filling out forms, handling databases, and managing FTP transfers. These systems were built for humans using graphical interfaces. To an AI, they are clumsy, prone to breaking, and highly risky.

On GitHub Pages, however, the act of "publishing" is unified into a single, elegant command: `git push`.

Creating a file, placing it in a folder, committing, and pushing. To an AI agent, this is simply a natural extension of file system manipulation—its absolute strongest suit. By raising the abstraction level to the extreme, editing a Git repository became a far safer, faster, and more robust deployment method for the AI than tapping into a graphical admin dashboard.

We simply give the order in chat: "Update this article." The AI handles the writing, asset processing, HTML formatting, and pushes the changes behind the scenes. The once-tedious routine of "blog maintenance" quietly vanishes from our consciousness. This is the true power of the AI Agent ✕ GitHub Pages architecture.

Naturally, not everything is a walk in the park. For instance, translating my Steam store page into 18 languages—even with all master data cleanly formatted in JSON—turned into a massive copy-paste nightmare because of the sheer volume of UI-specific inputs not covered by the JSON. I suppose Antigravity's browser operation could automate it, but letting the AI loose on highly critical settings where a single mistake could cause a catastrophe still feels "terrifying." Keeping a human hand on the brakes is a very real part of our current development landscape.

SEO: Building Up Content as Long-Term Assets

Operating a static blog on my own domain serves another quiet, strategic purpose: building up long-term SEO assets.

Posts on Note or X can vanish at the whim of the platform. An algorithm shift can wipe out your reach overnight, and if the service shuts down, everything is gone. But content built up on your own domain gains authority in the eyes of Google over time, serving as a stable, permanent gateway for search traffic.

This very article is the first step in that experiment. A slow, steady compounding strategy to gain traction under keywords like "AI Agent," "GitHub Pages," and "Indie Dev." Deeper technical topics like surviving the Steam review process and our 18-language localization workflow will follow in future articles.

Conclusion: AI as a Project Partner

Indie game development in 18 languages and the lightning-fast construction of modern websites—all achieved by someone without specialized IT training. This has been realized because I treat AI not as a mere helper, but as a true partner that shares the project and handles the actual execution.

Yes, letting an AI freely manipulate files on your local machine carries risks and fears. The human must keep a firm grip on the reins through version control and offsite backups. But the sheer speed of this workflow more than compensates for the anxiety.

AI has completely dismantled the barrier of technology. Now, all that is asked of me is the creative decision-making of "what to make interesting next." If you are starting to tire of endless copy-pasting, or if you are hesitating because you are "not an IT expert," I highly recommend inviting an agent into your repository. A future of individual development that is far more liberated—and far less lonely—is waiting for you.

"Though relying on AI this much might make me feel lonely in a different way, lol."