22 Copilot prompts for LinkedIn posts
Copilot's advantage is that your actual work already sits inside it. That is also the risk, so this set starts with the confidentiality pass and ends with the case against posting.
Everyone writing about Copilot for LinkedIn treats it as a chat window that happens to be blue. That misses the only thing about it that matters. Microsoft 365 Copilot can see your work: your documents, your emails, your meetings, whatever you already have permission to open, according to Microsoft's own description of how it works.
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For LinkedIn that is close to ideal, because the posts that work on LinkedIn are the ones made of real work, and your real work is sitting in the tenant. It is also the reason this article opens with a rule rather than a prompt.
One thing to know before you write anything: LinkedIn rebuilt how the feed chooses posts in March 2026, and it now matches on meaning rather than on words. We have gone through what its own engineers said changed, and the short version is that repeating a keyword to catch the algorithm has stopped doing anything at all.
First, which Copilot are you using
Microsoft's naming has caused more confusion here than the technology has. The short version is that one of them can see your organisation's data and one of them cannot.
| Microsoft 365 Copilot | Copilot Chat, and the free consumer app | |
|---|---|---|
| Sees your work files, mail and meetings | Yes, limited to what you already have access to | No, unless you paste or attach the content yourself |
| Lives inside Word, Outlook, Teams | Yes | Mostly no |
| Licence | Paid add-on | Included, no add-on |
| Best prompts here | All of them, including 6 to 11 | Everything except 6 to 11, and those work if you paste the source in |
The three setup prompts
1. A brief drawn from your own profile
Here is my LinkedIn profile and the last ten posts I published: [paste]. Write a 200 word brief about me that you will use for every post from now on: what I do, who I am talking to, the three subjects I am actually qualified on, and the subjects I should stay away from. Base it only on what is in front of you. Mark anything you inferred.
2. The voice rules, taken from how you write at work
Here are five emails I wrote to clients: [paste]. Describe how I write in six rules, covering sentence length, how I open, whether I use jargon, and how direct I am. Then list the words and phrases I never use. Do not flatter me, and where my writing is inconsistent say so rather than picking one version.
3. The confidentiality pass
This draft came from an internal document. Go through it and flag anything that should not be public: client or supplier names, prices, discounts, contract terms, headcount, revenue, anything about a deal that has not closed, anything a colleague would recognise as being about them, and any number I have not published elsewhere. List what you flagged before you rewrite anything. Then produce a version where every flagged item is either removed or made non-specific, and tell me which of the two you did for each.
Save prompt 3 somewhere you can paste it in two seconds. It is the one that stops a good tool from becoming an incident, and the reason it lists categories rather than saying remove confidential information is that a model asked the vague version will confidently decide a client name is fine.
Prompts that start from real work
These six are the reason to use Copilot rather than a chat window. Each assumes it can reach the source. If you are on the free version, paste the document in and they work identically, minus the convenience.
4. From something you wrote last week
Find the document I wrote about [subject] last week. Pull out the one idea in it that would be useful to somebody outside this company, and write it as a LinkedIn post under 150 words. Keep the specifics. Do not summarise the whole document, and do not mention the document exists.
5. From a meeting you actually ran
Use the recap from my [meeting name] meeting. Not the decisions, the disagreement: what did people see differently, and why. Write it as a post about the tension itself, without naming anyone, without saying it was a meeting, and without resolving it more neatly than it was resolved.
6. From the email you have now sent three times
Search my sent mail for explanations I have written more than once about [subject]. Show me the three that repeat most. Then turn the clearest one into a post, keeping my original wording wherever it is already plain, and cutting everything that only made sense as a reply.
That prompt is the closest thing to a free lunch in this whole list. Anything you have explained three times is something your market keeps not knowing, and you have already done the writing.
7. From a project that finished
Here is a project that just finished: [name it, or point at the folder]. Write a post about the part that was harder than expected. Say what we tried first that did not work. No client name, no numbers that are not already public, and no version of the sentence about how proud I am of the team.
8. From your own calendar
Look at my calendar for the last month and tell me what I actually spent my time on, grouped into no more than five themes with rough hours against each. Then tell me which one of those themes I am uniquely qualified to write about, and which I only think I am.
9. From a number you can defend
I want to post this number: [the number, and where it came from]. Before writing anything, ask me the questions a sceptical reader would: what is the denominator, over what period, compared to what, and does it include the failures. Then write the post so those answers are in it. If the number does not survive the questions, tell me not to post it.
Almost every post that gets picked apart in the comments is one where the number arrived without its denominator. Putting it in costs eight words and removes the entire argument.
Prompts for the shapes that work
LinkedIn allows three thousand characters per post, per its own help pages, and using them is almost always a mistake. Every prompt below has a limit well under it.
10. The one lesson post
Write a post that teaches exactly one thing, in under 130 words. Open with the situation, not with the lesson. The lesson goes in the last two lines and is stated once. No numbered list, no bold, and nothing that implies this insight applies to life generally.
11. The disagreement post
Here is a piece of advice that is common in our industry and that I think is wrong: [paste it]. Write a post arguing against it. Steelman it first, in one sentence, properly. Then say what I think instead and what it costs to be wrong about it. Under 160 words. Do not be smug and do not name anyone.
12. The how we actually do it post
Write a post describing how we do [process], step by step, in enough detail that a competitor could copy it. Under 180 words. No preamble about why process matters. If a step is boring but load bearing, keep it in, because the boring steps are the credible part.
13. The post about a mistake
Write about this mistake: [describe it]. The admission has to cost something, so no mistakes that are secretly strengths, nothing about caring too much or moving too fast. End with the specific change we made, stated plainly enough that somebody could hold us to it. Under 140 words.
14. The hiring post that is not a job advert
We are hiring a [role]. Write a post that describes the actual work on a normal Tuesday, including the parts people dislike, and says what kind of person is wrong for it. Salary range in the post. Under 150 words. No mention of a rocketship, a family, or a journey.
15. The event you are going to
I am going to [event] on [date]. Write a short post saying what I am hoping to work out while I am there, phrased as an actual open question rather than as an announcement. Under 80 words. It should give a stranger a reason to reply.
Prompts for the craft of it
16. Write the first two lines separately
Give me 8 versions of the first two lines of this post, maximum 20 words in total each. They must make sense on their own and must not promise that something follows. No questions, no statistics I have not verified, no sentence beginning with Most people. Then say which one you would keep and why, in one line.
17. Take the corporate out
Rewrite this so it sounds like I said it to one person over coffee. Remove: leverage, utilise, deep dive, circle back, at the end of the day, in today's landscape, and every sentence whose only job is to introduce the next sentence. Contractions are fine. Do not add personality to replace what you removed, just leave the space.
18. Fix the formatting
Reformat this post for LinkedIn. Short paragraphs, one to three sentences each, blank line between them. No bullet points unless the content is genuinely a list. No emoji as bullets. Maximum three hashtags at the very end. Do not change a single word of the writing while you do it.
19. Cut a third
Cut this by a third. Every specific detail, name and number stays. What goes is context setting, transitions, and anything restating the previous sentence. If something must go, remove opinion and keep fact. Show me the shorter version and a list of what you dropped.
20. The comment you post yourself
Write the comment I should add under my own post, answering the obvious follow-up question before anyone asks it. One or two sentences, same voice, no link unless I say so.
21. Replies that are not thank you
Here are the comments on my post: [paste]. Draft a reply to each. Rules: no reply may consist only of thanks, every reply either adds something or asks something real, and any comment that is just praise gets a short human acknowledgement rather than a paragraph. Flag any comment I should answer myself because it is a sales conversation.
22. The case against posting it
Argue that I should not post this. Is it something my network already knows, is it a claim I cannot defend, does it say more about my need to post than about the subject, or would a client reading it be uncomfortable? If the case against is weak, say so in one line and stop.
Run that one on everything. It is the only prompt here that regularly saves you from something, and the answer it gives about your fourth post in a week is usually correct.
What Copilot will not do for you
It will not publish for you. Everything above ends with you pasting text into LinkedIn or into a scheduler, and if that step is where your posting habit dies, the tools that close it are compared in the ten AI social media tools worth knowing.
It will also not give you a point of view. Every prompt in the list is a way of getting something you already think out of a document and into public, and the ones that start from real work are the good ones precisely because the thinking happened before the prompt did. If the well is dry, that is a business problem rather than a writing problem, and what a small business should post about is the more useful page.
And if you are doing this for clients rather than for yourself, the hours it saves are worth being honest about when you price the work. We went through that arithmetic in how much to charge for social media management. Whatever writes the words, the picture beside them still has to be the right shape, and LinkedIn is fussier about that than it looks: the sizes are here, including why the banner safe area advice in circulation is wrong.
Frequently asked questions
Can Microsoft Copilot write LinkedIn posts?
Yes, and its real advantage is that it can start from your own work rather than from a blank prompt. Microsoft 365 Copilot can draw on documents, emails and meetings you already have access to, which means a post can come from something you genuinely did last week. The free Copilot Chat cannot do that unless you paste the source in yourself.
Is it safe to write LinkedIn posts from internal documents with Copilot?
Only with a deliberate check. A model grounded in your work data will faithfully repeat a client name, a discount or an unclosed deal, because those are simply what the source said. Run a confidentiality pass that names the categories to look for, ask it to list what it flagged before it rewrites anything, and read that list yourself.
What is the difference between Microsoft 365 Copilot and Copilot Chat for this?
Microsoft 365 Copilot is a paid add-on that can use your organisation's data through Microsoft Graph and appears inside Word, Outlook and Teams. Copilot Chat does not reach your work content unless you provide it. Every prompt in this article works in both, but the six that start from a document, a meeting or your mail need you to paste the source in on the free version.
How long should a LinkedIn post be?
Far shorter than the three thousand character limit. Most of the prompts here cap the post between 130 and 180 words, because the first two lines before the see more link do nearly all the work and length past that point is read mainly by people already convinced.
Why do Copilot's LinkedIn posts sound corporate?
Because its default register is the register of the documents it has read most, which are work documents. The fix is two prompts: one that derives your voice rules from emails you actually wrote, and one that bans the specific vocabulary, leverage, deep dive, circle back and the rest, without adding personality to replace it.
Can Copilot schedule or publish to LinkedIn?
It drafts, and you publish, either by hand or through a scheduler. Treat any workflow that claims to do both as two products joined together, and check what the second one is before you connect it to an account that carries your name.
What is the best Copilot prompt for LinkedIn?
The one that searches your sent mail for the explanation you have written three times and turns the clearest version into a post. Anything you keep explaining is something your market keeps not knowing, the writing is already done, and it is in your own words before the model touches it.
How we researched this
- These are written for the way Copilot is actually used, which is inside a working day rather than in a dedicated writing session. That is why so many of them start from something that already exists: a document you wrote, a meeting you sat in, an email you have now sent three times. A prompt that assumed you would sit down with a blank page and a spare hour was not worth including, because that hour does not arrive.
- The confidentiality section is first because of what the tool is, not because of an anecdote. A model grounded in your work data has no way of knowing which true things are meant to leave the building, so it will reproduce a client name, a discount or an unclosed deal as faithfully as it reproduces anything else in the source. That is a property of the mechanism, and it is the one thing in this article we would not leave to memory.
- Microsoft ships two different products under the Copilot name and they behave differently, which is described in the table below rather than glossed over. Prompts that depend on your work data are marked, and every one of them has a version that works without it.
- Product behaviour was checked against Microsoft's own documentation on 10 August 2026 and is linked in the sources. Nothing here is a claim about how LinkedIn's ranking works, because we do not know and neither does anyone selling you a course about it.
Sources
