Prompt Workshop
Why it is written this way
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I run a {{account profile type}} account. I want to write a short post for Threads. Readers are quickly scrolling through their feed, and if a post looks like an ad, they will scroll past the first line immediately.
Please write five short posts about {{main central topic}}. Each of the five must take a distinct angle. Arrange them in this specific order: a personal anecdote, a personal opinion, an open question, a minor observation, and a mistake or failure.
Keep each post within 3 lines and under 200 characters. Start the first line directly with a concrete scene or a single statement without any background setup, and end the final line with an open thought that leaves room for replies.
Do not use hashtags or emojis. Avoid generic intros like "Hello everyone" or "Today, let's talk about...". Do not invent fabricated facts, personal stories I didn't experience, or unverified statistics. Ensure the final line does not end with promotional calls to action like "Please buy our products."
Here is an example of the desired format and tone. Please write in the exact same structure and style. Example: I was the one who insisted on letting the dough rest an extra 30 minutes, and I was also the one who was late this morning. The bread turned out better, but the store opened 10 minutes late. If you had to sacrifice one, would you choose product perfection or opening on time?
- Material What the AI needs to know ×2
- Work What to do, and how ×1
- Output What comes back, in what shape ×2
If you simply ask an AI to "write a short Threads post," it will produce generic marketing one-liners. When given only a brevity constraint, AI defaults to promotional taglines because they are the most condensed text format. What makes short-form social posts work is not raw compression, but the conversational breathing room that invites others to reply.
Read the full explanation · 3 paragraphs
Context sets the stage by defining who the account belongs to and the reader's current mindset. A single phrase like "quickly scrolling through their feed" changes the punchiness of the hook. In the Task paragraph, specifying five distinct angles prevents the AI from repeating the exact same thought five times with slight phrasing changes.
Setting a 3-line / 200-character Constraint along with the rule to "leave room for replies" is the core engine of this prompt. Sales-driven CTAs close conversations, whereas open questions or unresolved dilemmas invite responses. Banning hashtags and greeting intros serves the exact same purpose: the moment those appear, the post feels like a corporate broadcast rather than an authentic personal note.
Providing an Example in the final paragraph is the fastest way to anchor the voice. Describing tone abstractly ("understated", "relatable") leads to varied interpretations, but providing a single concrete example is clearer than a dozen adjectives. Instead of using the default example provided here, replacing it with one of your own past high-performing posts will make the generated output sound even more like your authentic voice.
Compared with a bad example
Write a short Threads post for a bakery. Topic: why we don't do end-of-day sales.
A vague request like this results in lifeless copy such as: "Baked fresh with honest ingredients every single day 🥖 #BakeryLife". While not incorrect, it sounds so generic that it could belong to any account, meaning nobody will comment on it. Even if you ask for five variations, they will all share the same generic angle, forcing you to discard them and write by hand.
Variations
Reply-focused questions only
Throwing out a standalone question feels like an impersonal survey. Grounding it with a brief scene in the first line significantly boosts comment rates.
Show prompt
I want to start a conversation on my {{account profile type}} account regarding {{main central topic}}. Please write five short posts that end with a question. The question should not be a simple yes/no, but one that encourages people to share their own personal experiences. Keep each post under two lines, and place a short scene or observation in the first line so the question is not left without context.
Ultra-short format for X (Twitter)
Content on X tends to be shorter and more punchy than on Threads. This variation tightens character and line-break constraints.
Show prompt
Write five short posts about {{main central topic}} for an X account focusing on {{account profile type}}. Each post must be within 140 characters and 1–2 sentences, with at most one line break. Across the five posts, include two assertive statements, two observations, and one question. Do not use hashtags or emojis.
Model notes
AI models occasionally exceed the "under 3 lines" constraint. If the output runs long, follow up with: "Shorten each post to exactly 3 lines and display the line count for each," which usually resolves the issue.
Last updated 2026-09-02 · Found a mistake? Let us know