ChatGPT prompt builder for emails

Most disappointing emails from ChatGPT come from the same place: the request was too thin. Answer four questions here and you'll get a prompt that already says who the email is for, how long it should be, and what the AI must not make up. Then copy it.

What a thin request looks like

Most people start here:

write an email to my manager about time off

The built version names the reader, fixes the length, sets the tone, and tells the AI not to invent dates.

Build your prompt

Role Act as my writing assistant.

Task Write an email to my manager.

Context I haven't given you the details yet. Ask me what the email is about before you write it.

Format Give me just the email, with a subject line.

Constraint Keep it under 120 words. Keep the tone polite.

Guardrail Do not invent any facts, names, or dates. If something is missing, ask me instead of guessing.

Show as plain text 
Act as my writing assistant.
Write an email to my manager.
I haven't given you the details yet. Ask me what the email is about before you write it.
Give me just the email, with a subject line.
Keep it under 120 words. Keep the tone polite.
Do not invent any facts, names, or dates. If something is missing, ask me instead of guessing.

Why this prompt works

Role
Telling the AI who to be aims the voice before it writes a word. Skip this line and the draft tends to drift toward the flat, committee-written tone everyone recognizes on sight.
Task
One clear instruction, with one verb. A vague ask gets a vague answer, and most disappointing results start right here.
Context
The AI knows nothing about your situation. Anything you leave out, it fills in with a guess, and that guess is why so many drafts come back sounding like they were written for somebody else.
Format
This is the line that asks for bullets, or a subject line on top, or one idea per row. Leave it out and the answer usually arrives as a block of paragraphs you have to chop apart by hand before you can use any of it.
Constraint
Left to itself, the AI writes long and formal, so name the length and the tone you actually want.
Guardrail
This line names the two habits that waste the most of your time and asks the AI to skip them: inventing facts that sound right, and padding the answer to feel thorough. It will not always listen, but the asking costs you nothing.

Frequently asked questions

Why does ChatGPT write such generic emails?

Usually because the request left out who the email is for and how long it should be. With nothing to go on, it picks the safest middle: long, formal, and vague. Naming the reader and the length fixes most of it.

Do I have to use this exact prompt?

No. Copy it, then change any part that does not match your situation. The label on each line tells you what that line is doing, so you can edit it without breaking it.

Will ChatGPT make up details about my job?

It can, and that is why the last line of the prompt you build here tells it not to. If you leave out a date or a name, a model will often fill the gap with something plausible rather than ask you. That last line asks it to come back to you instead.

More on this: How to use ChatGPT to write emails, or pick another job on the prompt builder page.