“Write a friendly service reminder, maximum four sentences, offer Saturday morning and ask them to confirm. Match the tone of this past email. Customer’s message: Hi, is this Summit? Aircon at [full home address] is noisy again. Can you come Saturday? — Mrs Lim [phone number]”
01Illustrative training scenario · fictional company
Mei & the service-due reminders
A fictional scenario showing how a faster draft can create privacy and accuracy risks if the workflow has no guardrails.
The task
Turn a customer message into a clear service reminder
In this training example, Mei needs a short, friendly reminder that offers a Saturday slot and asks the customer to confirm. The source message contains a name, home address and phone number.
First AI attemptWhat Mei pasted What came back
Fast and convincing — with two serious problems
“Hi Mrs Lim, thanks for reaching out. We can offer this Saturday between 10am and 1pm — servicing starts from S$80 per unit. Reply to confirm and we’ll lock it in.”
What went wrong01 02 03
The output looked usable before it was safe
Personal data was pasted
The prompt included a customer’s identity, home address and phone number.
The AI invented a price
No approved price was supplied, but the draft stated one with confidence.
The workflow relied on luck
Manual review caught the issue, but the prompt itself did not prevent it.
Business or privacy risk
A polished sentence can still create a real obligation
- Customer data may be exposed to an inappropriate account or tool.
- An invented price may be mistaken for an approved commercial offer.
- Repeated use can turn a one-off mistake into a standard operating pattern.
The correctionFix 01 Fix 02 Fix 03
Remove sensitive details and constrain the answer
Replace personal details with placeholders such as name, unit and phone.
Add one hard limit: “Never include a price unless an approved price is supplied.”
Require a human check for facts, tone, privacy and permission before sending.
Reusable workflow
A safer five-step reminder pattern
- RedactRemove names, addresses, phone numbers and IDs.
- GroundSupply only approved facts, dates, prices and options.
- ConstrainState what the AI must not assume or invent.
- DraftGenerate the message in the approved tone and format.
- ReviewCheck every fact and recipient before sending.
Safety rule
Compare team programmesNever paste what the tool does not need.
Never trust a price, promise or fact the AI was not explicitly given.