Everyone has one: the task you do every week that's too small to hire for and too annoying to keep doing by hand. Reformatting a vendor's CSV into your accounting layout. Renaming forty job-site photos. Turning a messy email into a clean work order. For years the answer was "just live with it." Not anymore.
What micro-software actually is
It's a single-purpose tool that does one thing, for you, forever. Not an app you sell. Not a system anyone else has to learn. Fifty lines of code — or a saved agent instruction — that takes the thing you hate and does it in two seconds. The shift is that you can now describe what you want in plain English and an AI assistant will write and run it. You don't read the code. You check that the output is right.
How to actually do it this afternoon
Open a tool like Claude or ChatGPT and describe the annoyance concretely: "I get a spreadsheet from my supplier with these columns. I need it rearranged into this format with the dates fixed. Build me something that does it." Paste a real example. The AI will produce a working tool, you'll test it on last week's file, and you'll go back and forth a couple of times until it's right. Then you save it and reuse it. The whole loop is usually under an hour for something you'd otherwise do weekly forever.
Pick the right first project
Don't start with the most important workflow in your business. Start with something low-stakes and repetitive where you can eyeball whether the result is correct — file renaming, simple reformatting, pulling a few fields out of a document. Win there, build confidence, then move up to things that matter more. The goal early on is a quick, obvious payoff that proves the approach.
The honest caveat
Micro-software is great for tasks where you can verify the output at a glance. It's a bad idea for anything where a silent error costs you — tax math, client billing, legal language — unless a human checks every run. These tools are reliable, not infallible, and a tool that's wrong 1% of the time is dangerous if you've stopped looking. Keep a human in the loop wherever the stakes are real.
The takeaway: Pick the one small task you grumble about most this week. Describe it to an AI, build the tiny tool, and never do it by hand again. That's the whole game.