Building Small Tools With AI: From Simple Scripts to Useful Utilities

4 minutes
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There is a strange category of computer problems that nobody wants to solve properly.

You have 600 files with terrible names. You need to change one thing in a spreadsheet every Friday. You want to grab some information from a website and put it into a table.

There is probably a program for it somewhere.

Finding that program can take longer than doing the job manually.

This is where small scripts become useful. And AI has made writing them much less intimidating, even if programming is not really your thing.

The Little Scripts That Actually Get Used

One of the easiest examples is file management.

You can ask for a Python script that takes everything in a folder and renames the files according to a specific pattern. Then you realize you also want to keep the original extension. Then you notice that some files already have the new name.

So you change the script.

This sort of back-and-forth is often more useful than trying to explain the entire project beforehand. You run it, see what is wrong, tell the AI what happened, and adjust the code.

The finished program might be tiny. Maybe 30 lines. But if you use it every week, those 30 lines are suddenly pretty valuable.

Games Have Plenty of These

Games are actually a pretty good place to start.

Take a big Minecraft modpack. You might need to find which mods are installed twice, check a pile of config files, or pull item data out of several files at once. A small script can handle that without turning it into a whole project.

The same thing happens with other games. A damage calculator, a build planner, a tool for editing game files in bulk — these can all start as a simple script made for one very specific problem.

And once you get used to doing this, it stops being just a gaming thing. The exact same approach works for files, spreadsheets, logs and all those other little computer tasks that are annoying enough to automate, but not annoying enough to spend three days building software for.

The Nice Part Is Being Specific

The more annoying and specific the task is, the more interesting this gets.

"I need a spreadsheet tool" is not particularly useful.

"I have 15 CSV files with the same columns. Take the rows from all of them, remove duplicates based on the email column and save the result as one file" is much better.

You already know what the tool should do. You just need help turning that description into something a computer can actually run.

That also makes fixing mistakes easier. If the script puts something in the wrong column, you can point at the result and say exactly what happened.

No need to pretend you understand every line of code.

It Can Get More Complicated

Small projects have a habit of growing.

The file-renaming script eventually gets a little interface. The spreadsheet tool starts reading three different formats. Your game calculator gets a database of items. Suddenly that five-minute experiment has become something you actually use.

This is usually where you start learning more about the code, because now it is worth understanding.

AI can still write parts of it, explain an unfamiliar function or help track down an error. You just have a much better reason to care about what the code is doing.

What Does It Cost?

There is no particular reason to pay for an AI subscription if you ask it for a script twice a year.

For someone using AI almost every day, the calculation is different. Coding, rewriting files, checking errors and building small utilities can turn it into a regular part of working with a computer.

That makes claude pricing one of the things worth looking at when choosing a tool. Not because a more expensive plan magically produces better scripts, but because usage limits start to matter when you actually use the thing a lot.

And that is probably the bigger change here.

A few years ago, making a custom tool often meant either knowing how to program or spending an evening searching for software that almost did what you wanted.

Now you can just try making the thing yourself.

Sometimes it takes ten minutes.

Sometimes it takes the entire evening anyway.

But at least you have something useful at the end.

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