[Claude Code Learning Log #3] I made and released a tool that suggests hashtags for note

When I write articles on note, I always get stuck on choosing hashtags.
I spend about 5 minutes thinking, 'Is this okay?' or 'There must be better tags,' and end up deciding on something randomly.
For my own sake, I created a tool that suggests 5 to 10 hashtags.
The name is "Tag-kuru." You can use it for free starting today.

🔗Tag-kuru

I wrote that I 'made' it, but I'm a college student with no programming experience, and I barely wrote any code. When I asked Claude Code, something that actually works was created. I'll write about it step by step.

It started from playing around with a fictional company

#2 article As I wrote in the , I was playing around with creating my own fictional company using Claude Code.
The employees are animals. There are over 10 of them, and I set a job title and personality for each one.

• Hachi, the SEO Manager

• Tako (Octopus), in charge of hashtags

• Ookami (Wolf), Product Development Manager

…It’s completely a delusion.

One day, when I faced my usual '5-minute hashtag selection problem,' I suddenly thought, 'Wait, I have an octopus in my company,' and 'Let's ask the octopus.' As an extension of that conversation, I threw this at Claude Code:

An hour later, something that really worked was finished.

What kind of tool is it?

It's simple. You can use it in 3 steps.

1. Choose a genre
Choose from 8 options: Side Hustle, Investment, Essay, Business, Technology, Learning, Creation, and Health. When you choose one close to the article you want to write, the built-in dictionary switches to that category.

2. Paste the article text
Just the title is fine. The whole body text is also okay.

3. Press the button
5 to 10 hashtags will appear, balanced between topic tags, broad tags, medium tags, and niche tags. For each tag, it also explains 'why I chose this.'

Press the copy button to copy them all at once. Then just paste them into note and you're done.
At the very least, for me, this has eliminated the time I spend agonizing over hashtags.

The byproduct is probably greater

I'm happy I got the tool.
But I feel like what I gained in the process of making it was even bigger.

I touched HTML, CSS, and JavaScript. I can't write them. But I gained a sense of how they are written. I created my own repository on GitHub and was able to publish it. A week ago, I only had a vague understanding of the word 'repository'.

A week ago, I was someone who was intimidated by the black screen of the terminal.
Now, my own web service exists on the internet.
What happened?

I barely wrote any code

I didn't write a single line of code for this tool. Everything was written by Claude Code.
What I did was something like this:

• 'For the side hustle genre template, include more specific tags.'

• 'When opened on a smartphone, the buttons are hard to press, so fix that.'

• "I want to be able to edit the dictionary"

I convey my requests in Japanese. Code comes out. I run it. For the parts that don't work, I say "this part isn't working." A corrected version comes out. By repeating this process, it took shape.

I'm not even sure if I should say I "created" it.
However, as a result, there is something that works, and it is now in a state where anyone can use it. That is a fact.

People I want to use this

• People who write articles on note and pause a little every time they choose hashtags

• People who tend to overlook the existence of theme tags or contest tags

Completely free, no registration required, and data stays within the browser.
🔗Tag-kuru
You can also customize the dictionary for yourself. You can add your favorite tags or delete tags you don't need.

From here on

I've come this far on momentum. I haven't decided what to do next yet.
I could add an AI analysis mode, or keep developing it as is. I could also move on to a different tool.

If you have any impressions, requests, or bugs after using it, I would be happy if you could let me know via comments or on X.

Only after I turned to the side of creating things did I realize how grateful I am for every single piece of feedback.