Every organization has presentation standards. Most of them are written for people: a brand book, a style guide, a “how we present” page on the intranet. People read them once, remember some of them, and apply them with judgment.
In late September 2026, Microsoft began rolling out a way to give those standards to Copilot directly. Brand Skills let brand managers upload written instructions to Brand Kit and publish them across the organization, so Copilot in PowerPoint follows them when it creates presentations. It is the first time a company’s presentation standards can be written in a form a model reads every time.
This post explains what a Brand Skill is, how it fits with the other controls, and — the hard part — how to write one that actually changes what Copilot does.
What a Brand Skill is
According to Microsoft’s announcement, brand managers can upload custom presentation skills to Brand Kit as Markdown (.md) files, or as .zip packages, and share them across the organization. Eligible users then get those skills in Copilot in PowerPoint, where they provide “reusable instructions to guide how Copilot creates presentations.”
A few details from the announcement are worth underlining:
- It is not automatic. The capability arriving in your tenant does nothing on its own. A brand manager has to write, upload and publish a skill.
- Microsoft recommends governance. It suggests review for security, privacy, accessibility, legal and brand before publishing, testing before broad release, communicating availability to users, and auditing published skills periodically.
- Rollout: Frontier customers from mid-to-late September 2026, worldwide general availability from late September 2026. Check your own tenant for current status.
Where Brand Skills fit
Microsoft now gives brand managers three layers of written and structural control over Copilot in PowerPoint:
| Control | What it governs | Where it lives |
|---|---|---|
| Strict brand adherence | Which layouts Copilot may use; placeholders can’t be added or removed | A template setting in Brand Kit |
| Note instructions | How to use a specific slide or layout | Speaker notes on template slides |
| Brand Skills | How presentations are created across the organization | Markdown files published in Brand Kit |
A simple test for where a rule belongs: if it is about one slide, put it in that slide’s notes. If it is about every presentation, it belongs in a skill. If it is about color or typography, it belongs in the theme, where it applies automatically.
What belongs in a Brand Skill
The instinct is to paste in the brand book. Don’t. A brand book is written to inspire and inform people. A skill should instruct a model. The content that tends to be useful:
Structure rules. “Open with a one-slide summary of the recommendation.” “Put the agenda on slide two for any deck longer than eight slides.” “End with next steps, each with an owner.”
Writing rules. “Write slide titles as full-sentence takeaways, not topics.” “Use sentence case in titles.” “Spell out acronyms on first use.” “Use US English.”
Density rules. “No more than five bullets per slide.” “One idea per slide.” “Move supporting detail to the speaker notes.”
Data rules. “Every chart needs a title that states the finding.” “Include a source line under any statistic.” “Don’t round percentages below one decimal place in financial slides.”
Terminology. Approved product names, how to refer to the company, words to avoid. Keep this short and literal.
Hard limits. “Do not invent statistics.” “Do not include customer names unless they appear in the source material.” Rules like these are among the most important a skill can carry — and among the ones most worth testing.
How to write rules a model can follow
A model is a literal reader with no context about your organization’s history. Rules that work for it share a few properties.
Specific beats aspirational. “Our presentations are clear and confident” gives Copilot nothing to act on. “Every slide title is a complete sentence under twelve words stating the slide’s main point” does.
Checkable beats vague. If you cannot look at a generated slide and say whether the rule was followed, the model cannot reliably follow it either.
Short beats complete. A skill with forty rules dilutes each one. Start with the eight or ten that would fix the problems you actually see, then add more only when testing shows they help.
Positive beats negative. Say what to do. Add a “never” only for failures you have observed.
Explain the purpose when it helps. “Put the recommendation first, because our executives read only the first slide” gives the model a principle to generalize from, not just a rule to obey.
Test before you publish, and after
Brand Skills influence a generative model; they do not program it. The only way to know whether a skill helps is to measure:
- Build a fixed set of realistic prompts — the kinds of decks your people actually make, with messy source material as well as tidy material.
- Run them without the skill. Record what happens.
- Add the skill. Rerun the same prompts. Compare, rule by rule.
- Keep the rules that change behavior. Rewrite the ones that don’t. Remove the ones that make things worse — it happens.
Then keep that prompt set. Rerun it whenever you edit the skill, update the template, or Microsoft changes the product. Microsoft’s own guidance to audit published skills periodically is a strong hint that the behavior will move.
The skill is only as good as the template underneath
A final caution. A Brand Skill can tell Copilot to use one idea per slide, but it cannot make a template contain the right layouts for one-idea slides. It can say “use the comparison layout for two options,” but it cannot create that layout if the template lacks it. It can ask for charts in brand colors, but the colors come from the theme.
Skills, note instructions and strict mode are all ways of directing Copilot. The template — its theme, placeholders and example slides — is what Copilot has to work with. Written rules on top of a weak template produce well-behaved generic decks. Written rules on top of a template built for how Copilot learns produce something much closer to what your best designers would make.
Key takeaways
- Brand Skills are Markdown instructions a brand manager publishes to Brand Kit; Copilot in PowerPoint follows them across the organization.
- They are not automatic: someone must write, test and publish them, and Microsoft recommends governance and periodic audits.
- Write rules that are specific, checkable, short and positive — not a pasted-in brand book.
- Test every rule against a fixed prompt set, and retest whenever anything changes.
- Skills direct Copilot; the template determines what it has to work with.
Need your standards written as rules Copilot can follow? Have your template scored and ask us about Brand Skill authoring.
Related reading
- Notes steering: guiding Copilot from your template’s speaker notes
- Strict brand adherence: what Microsoft’s template lock does and doesn’t do
- Brand Kit in Microsoft 365 Copilot, explained for brand teams
Sources
- Microsoft 365 Message Center, MC1473166 — Brand Skill support now available in PPT Copilot (Desktop) (16 Sep 2026)
- Microsoft 365 Message Center, MC1473165 — Brand Skill support (Web) (Sep 2026)
- Microsoft Support, Manage template settings in your Brand Kit for Copilot in PowerPoint (August 2026)