What is Single Responsibility?
A class or module should have one reason to change. Split mixed jobs into focused pieces.
ui changed · export keeps printing
Single responsibility means one…
Write it in your own words in the app.
In real work
Single responsibility: we split UserExporter out of UserProfileView so UI edits do not break CSV export.
In the illustration
A splitting wedge separates the shared base; the display head is unbolted and swapped for a new one while the printer keeps feeding out CSV sheets without a stutter.
Split UserManager in your coding agent by single responsibility: one type validates input, one talks to the database, one sends email. Show the before and after file list.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.
Learn the next term tomorrow.
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews. Then it quizzes you until the word sticks. One term a day on iPhone.
