These are 50 prompts for the texting problems people actually have: the message that sounds too harsh, the client asking for a discount, the friend you've left on read for three days. Copy any of them into an AI keyboard or chatbot, apply it to your draft, and send the result.
They're grouped by situation. Skim to the section you need; nobody reads a prompt list top to bottom.
How to use these prompts
With an AI keyboard the loop is short: type your rough draft in the chat, select it, run the prompt, and the rewritten text replaces your draft right in the message box. In Synapse you can also save any prompt from this list as a custom shortcut, so your five most-used ones become one-tap buttons.
Using a chatbot instead? Paste the prompt plus your draft into ChatGPT or Claude, then copy the reply back to your messaging app. Same result, more thumb work.
Two habits make every prompt below work better:
- Give the AI your draft, not a blank request. "Write a birthday message" produces greeting-card filler. "Make this birthday message warmer: happy bday man, big year for you" keeps your voice.
- Add one constraint. Length ("under 30 words"), tone ("dry humor"), or audience ("to my landlord") sharpens the output more than any clever phrasing.
If you want prompts generated for a specific situation instead of a list, our free AI prompt generator builds them from a few dropdowns.
Fix and polish (everyday cleanup)
The daily drivers. If you only save five prompts, save these.
- Fix grammar and spelling, keep my wording and tone.
- Fix grammar, but keep it casual — this is a text to a friend, not an email.
- Make this clearer without making it longer.
- Shorten this to one sentence and keep the main point.
- Break this wall of text into short, readable lines.
- Remove everything unnecessary from this message.
- Rewrite this so it can't be misread as sarcastic.
- Make this sound like a human typed it on a phone, not a formal letter.
- Fix the punctuation only — don't change any words.
- Rewrite this so the question I'm asking is impossible to miss.
Number 10 earns its place: long messages bury questions, and buried questions don't get answered.
Change the tone
Same message, different temperature.
- Make this more friendly and warm.
- Make this more direct — I keep softening everything I say.
- Make this polite but firm; I'm not changing my answer.
- Take the anger out of this but keep the complaint.
- Make this sound enthusiastic without exclamation marks everywhere.
- Rewrite this to sound calm and unbothered.
- Add light humor to this without making it cringe.
- Make this apologetic but not groveling.
- Rewrite this like I'm confident about the ask.
- Make this sound less desperate.
Prompt 14 is the one to run before replying to anything that made your blood pressure spike. Type exactly what you want to say, then let the AI file the edges off. You get the relief of writing it and the safety of not sending it.
Reply faster
For when the blank reply box is the problem.
- Write a short reply agreeing to this and confirming the time.
- Write a polite reply declining this invitation, no fake excuse.
- Reply to this with genuine interest and one follow-up question.
- Write a reply that buys me time: I need to check before committing.
- Summarize this long message in two lines so I know what they're asking.
- Write a warm reply to this good news.
- Write a supportive reply to this bad news — no advice, just support.
- Reply to this without answering the question they asked. Keep it friendly.
- Write three reply options to this: one yes, one no, one maybe.
- Draft a reply to this that ends the conversation politely.
Prompt 25 pairs with everything else here. Summarize first, then reply to the actual point instead of the last sentence you skimmed.
Hard conversations
Apologies, boundaries, money between friends. The messages you rewrite eleven times.
- Write an apology for this that takes responsibility without over-explaining.
- Help me cancel plans last minute — honest, apologetic, no elaborate excuse.
- Write a message asking my friend to pay me back, casual, not passive-aggressive.
- Rewrite this boundary so it's kind but non-negotiable.
- Write a message checking on a friend I haven't talked to in months, without making it weird.
- Help me say no to this favor without damaging the friendship.
- Rewrite this confrontation so it starts a conversation instead of a fight.
- Write a condolence message that doesn't lean on clichés.
- Help me tell my roommate this habit bothers me, light tone, clear ask.
- Write a follow-up to my unanswered message that isn't "??"
A note on this category: the AI drafts, you decide. Read these twice before sending, because you own the message the moment it leaves your phone. The value isn't outsourcing the sincerity; it's getting past the eleven rewrites to something you actually mean.
Translation and language
- Translate this to Spanish, casual, like texting a friend.
- Translate this to formal Arabic suitable for a work chat.
- Translate this message to English and tell me the tone it was written in.
- Reply to this in the same language it was sent in, friendly tone.
- Rewrite this in simpler English for a non-native speaker.
Prompt 43 solves the real problem with translated chats: words come through, tone doesn't. Knowing whether the original was warm, annoyed, or neutral changes how you reply.
Work and clients
For WhatsApp-based work chats, freelancing, and small business messaging.
- Rewrite this as a professional but friendly message to a client.
- Write a payment reminder for this overdue invoice — polite, direct, with the amount and date.
- Reply to this scope-creep request: happy to help, but it's extra cost.
- Turn these bullet points into a short project update for my client.
- Write a rate-increase message to a longtime client, appreciative but firm.
If half your income arrives through a chat app, these five prompts pay rent. Save them as custom shortcuts so a payment reminder is one tap on a bad cash-flow day.
Make the good ones one-tap
A prompt you retype is a prompt you'll stop using. The fix is a keyboard that stores them: in Synapse, open the prompt section, save your regulars as custom prompts, and from then on it's select text → tap prompt → done, inside WhatsApp or any other app. The features page shows how custom prompts, grammar fixes, and translation all hang together.
FAQ
Do these prompts work with ChatGPT and other chatbots?
Yes. They're plain instructions, so they work in any AI tool. The difference is workflow: with a chatbot you copy-paste between apps; with an AI keyboard the rewrite happens directly in your message box.
Will people be able to tell AI wrote my texts?
If you send generic output from a blank request, probably. If you follow the draft-first habit (your words in, polished version out) the message stays recognizably yours. And read before sending — you're the editor.
What's the best prompt for fixing grammar in texts?
Number 2 on this list: "Fix grammar, but keep it casual — this is a text to a friend, not an email." Plain grammar prompts tend to formalize everything, and texts that suddenly have perfect semicolons read as strange.
Can I use these prompts in languages other than English?
Yes. Write the instruction in any language, or keep the instruction in English and apply it to text in another language. Mixing works fine: "fix grammar" on an Urdu or Spanish draft does what you'd expect.
How do I write my own prompts?
Name the format ("a two-line reply"), the tone ("warm, casual"), and the goal ("decline without excuses"), then attach your draft. Constraint beats cleverness. Our prompt generator assembles these pieces for you if you'd rather pick from menus.
Put the list to work
Reading prompt lists changes nothing; wiring three of them into your keyboard does. Grab the free Synapse APK from the download section, save prompts 1, 14, and 47 as your starters, and run them on real messages this week. Signup comes with 20,000 free credits, so the experiment costs you nothing but the two minutes of setup.