Post Master: How to Write a Precise Brief for a Social Media Post
Post Master is a tool for writing post text for a specific platform and audience with a clear call to action. It does not publish posts itself or select images: you get one text result that you can copy or download as a plain TXT. Quality depends not on the model's 'magic' but on how precisely you describe the task in four fields: your text or idea, platform, audience, and style. Below is how to fill in these fields, how a bad brief differs from a good one, and how to check a finished post before publishing.
Open tool: Social post writer ↗What the tool does and does not do
Post Master accepts four text fields and produces one post variant in the selected language. The fields are simple: 'Your text or idea' (up to 8000 characters), 'Platform or application', 'Audience or experience level', and 'Tone, style or format'. There are no sliders, style presets, or level-of-change options in the interface—you describe everything in words. The result appears in a separate panel; you can copy it or download it as TXT.
It is important to understand the boundaries: the tool does not publish a post to a social network, does not send it by email, does not do batch processing, and does not save history automatically. It does not generate photorealistic images and does not create audio or video. If you need SRT subtitles or voiceover, those are separate functions with their own limitations and are not related to the text post.
The model can make mistakes: confuse facts, add unnecessary promises, or use inappropriate emojis. Therefore, a human always checks the post. The queue and availability of the tool may vary, and the result is a draft, not a final text ready for publication without edits.
Bad brief: 'Make a post about bread.' Good: 'The bakery “Testo” is launching a Saturday sourdough bread baking workshop. Need a post for Instagram, audience—local residents aged 25–45 who love local products. Goal—sign up for the first session on October 12. Tone warm, without pathos, up to 600 characters, one call: write in direct messages.'
Field 'Your text or idea': context matters more than embellishments
In the first field, paste raw information: what is happening, who is involved, when, where, what the person will get. You do not need to write beautifully—you need to write completely. The model will turn the facts into coherent text, but it cannot guess the date, price, or address if you did not specify them. If the price is unknown, honestly write 'we will clarify the price later'—then the post will not contain made-up numbers.
It is useful to immediately state the goal of the post: sign-up, click-through, comment question, save to bookmarks. The goal determines the call to action, and without it the model will come up with something generic like 'learn more'. Also specify constraints: length, required words, forbidden phrasing, whether partners need to be mentioned.
If you already have a draft, paste it and ask to rewrite it for the platform. If you have no ideas, describe the situation in one paragraph. The more specific the source, the fewer edits after generation.
Draft input: 'Bakery “Testo”, 14 Sadovaya St. Saturday, October 12, 11:00. Sourdough bread workshop, 2 hours, led by our baker Irina. Participants will take home their own loaf and starter. 10 spots. Sign-up in direct messages. Price 1500 rubles. Need a post for Instagram, warm tone, up to 600 characters.'
Field 'Platform or application': each platform has its own rules
The platform sets the length, structure, and acceptable techniques. For Instagram, short paragraphs, moderate emojis, and a call to write in direct messages are appropriate. For Telegram—calmer text, a link or button, less visual noise. For LinkedIn—business tone, value and conclusion, minimal slang. For VK—lively language, the ability to ask a question in comments.
Do not just write 'social media'. Specify: Instagram, Telegram channel, VK, LinkedIn, X. If a post is needed for several platforms, generate separately for each: one universal text almost always loses to an adapted one.
If you are unfamiliar with the platform, describe it in words: 'short posts up to 300 characters, audience reads on phone, links in first comment'. The tool does not know all the nuances of platforms, so your explanations matter more than the name.
For Telegram: 'Post up to 700 characters, no emojis, link to sign-up at the end, address as “you” (formal)'. For Instagram: 'Up to 600 characters, 2–3 emojis, question at the end, call to write in direct messages'.
Field 'Audience or experience level': whom you are writing to
The audience determines vocabulary and level of explanation. Local residents do not need to be told what sourdough is, and professional bakers are not interested in basic explanations. Describe age, interests, attitude to the topic, and what matters to them: price, time, benefit, status, safety.
It is useful to indicate what the audience already knows and what it does not know. For example: 'people who love home baking but have never worked with sourdough'. Then the model will explain the process in simple words and not overload with terms.
If the audience is mixed, choose the main group. A post for everyone at once sounds generic and appeals to no one. It is better to make two posts for two groups than one averaged one.
Audience: 'Local residents aged 25–45, love local products and weekend activities, not professional bakers, value clear benefits and specific time'.
Field 'Tone, style or format': how the text sounds
Describe tone with adjectives and examples: warm, friendly, businesslike, calm, with light irony. If the brand has its own voice, give a short sample phrase: 'We write like a neighbor who recommends a good place, without advertising pressure'. This works better than an abstract 'make it beautiful'.
Format is also important: list, short paragraphs, Q&A, first-person story, instruction. Specify length and structure: 'up to 600 characters, three short paragraphs, call to action at the end'. If hashtags are needed, say how many and which ones.
Constraints should be listed separately: no exclamation marks, no word 'unique', no promises of results, no pressure. This reduces the risk that the model adds template advertising phrases.
Style: 'Warm, calm, like an invitation from an acquaintance. Without pathos and exclamation marks. Up to 600 characters, three paragraphs, one call: write in direct messages. Two hashtags: #bakery #workshop'.
How to check the result before publishing
First, check the facts: date, time, address, price, number of spots, names. The model could have rearranged or rounded the data. Then check the call to action: it should be one, clear, and actionable. If the post has two different calls, the reader will not understand what to do.
Then assess compliance with the platform: length, structure, appropriateness of emojis and hashtags. Read it aloud—if a phrase sounds like an advertising cliché, replace it. Remove anything that promises a guaranteed result or pressures the reader.
And lastly: check for made-up details. If the model added something you did not specify, delete it or clarify the input and generate again. One or two passes of edits usually yield a working text.
Checklist: date and address correct; one call to action; length within platform limits; no promises or pressure; no facts that were not in the input; tone matches the brand voice.
Tool limitations and common mistakes
Post Master does not publish text, does not save history, and does not do batch processing. It does not generate photorealistic images, audio, or video. The model can make mistakes, and availability and queue may vary, so you should not build an entire campaign on one result.
A common mistake is too short an input. The phrase 'make a post about a discount' will produce generic text that will have to be rewritten. Another mistake is mixing several goals and audiences in one task. The third is not specifying constraints and then being surprised by template phrases.
Remember that this is a draft. The final decision to publish is made by a human, and responsibility for facts and promises lies with you. If the topic concerns finance, health, or law, the post should remain informational and not give personal recommendations.
Instead of 'make a post about a discount', write: '20% discount on all loaves on Saturday, October 12, bakery “Testo”, 14 Sadovaya St. Post for VK, audience—local residents, friendly tone, up to 400 characters, call: come before 18:00'.
A precise brief for Post Master is four specific answers: what is happening, for which platform, for whom, and in what tone. The more fully you describe the context, goal, and constraints, the fewer edits will be needed. Check the facts, keep one call to action, and remember that the tool produces a draft, while the decision to publish remains with you.
Open tool: Social post writer ↗Interface translations are machine-assisted and may need refinement.