What is Guardrail?
A rule that prevents an AI from producing harmful or off-topic output. Guardrails can be built into the model or added via your system prompt.
off-line ball · kept on lane
A guardrail prevents the AI from...
Write it in your own words in the app.
In real work
Add a guardrail: never suggest deleting files without confirmation. Always warn the user before any destructive action.
In the illustration
The bumpers rise and a wild ball bounces back toward the pins instead of into the gutter.
Add a guardrail in your model so the assistant refuses to quote prices that are not in the price list file, and says what it would need to answer.
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.
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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.
