Advanced use of Copilot starts where everyday use leaves off. Once your people are confident drafting, summarising and researching with Microsoft 365 Copilot, the next step is teaching Copilot how your organisation works. Copilot skills do that. A skill captures how your best people do one specific piece of work, so Copilot does it your way, for anyone who runs it.
Skills are the third of four stages on the Copilot adoption curve, and the stage where advanced Copilot training starts. They make AI reusable and portable across platforms, and building them is one of the most worthwhile capabilities a Copilot user can develop.
The Copilot adoption curve: from the basics to advanced Copilot
Most organisations measure Copilot adoption by how many people use it. The larger gains come from how well they use it, and we see teams move through four stages:
Everyday assistance
Asking questions, summarising meetings and email threads, and drafting first versions in Word and Outlook. Every Copilot rollout starts here.
Prompting and agents
Structured prompting, Notebooks, the Researcher and Analyst agents, and Copilot Cowork for multi-step document work. Good Copilot training takes teams here quickly.
Building skills
Capturing your own processes as skills so Copilot follows them reliably, then testing them on real work and sharing them across teams.
Skills that run on their own
Proven skills run in Copilot Studio, started by an email or a file and connected to core business systems.
Our Microsoft 365 Copilot training takes teams through the first two stages and well past the basics, and our Copilot Cowork training introduces custom skills. Stage three is where advanced Copilot training comes in. A skill hands Copilot a whole process, so one run can replace hours of manual assembly and the return on a Copilot licence climbs with it.
What advanced Copilot users build with skills
These are the kinds of processes organisations hand to a skill:
Many documents in, many out
Reports, spreadsheets and case files go in. A full set of finished documents comes out, each built to your templates and business rules.
From a flood of emails to a report
Every message is read, sorted and checked against your systems, and the items that need action are pulled into one report.
Complaint responses
Once a complaint case is captured, the skill reviews the case notes and supporting documents and drafts the response letter for review.
Supplier due diligence
The skill researches a prospective supplier across registers, financial reports and news, then assembles the pack procurement uses to approve them.
Claims against a lease
When a tenant lodges a claim, the skill compares it with the lease to confirm whether the clause exists and the claim is covered.
Copilot adoption reporting
Microsoft’s built-in adoption reports are limited, so clients send us five CSV exports from the Microsoft 365 admin centre. Our skill turns them into a branded PowerPoint deck laid out the way each client wants, plus a linked spreadsheet for working through the detail.
Each of these is a multi-step process that has to be followed reliably, and until recently that was more than AI could be trusted with. Skills change that. A task driven by a skill can run for minutes, or even hours. You can start it yourself in Copilot Cowork, or have Copilot Studio start it automatically when an email or file arrives. It works in the background and comes back to you when it needs a decision, or when every document you asked for is ready. Long jobs such as document generation suit this well.
Now that Copilot Cowork and Copilot Studio support skills, we can build Copilot agents that take on a whole process from first input to finished output. Many of the projects we have delivered have skills as their foundation. Our loan application validation agent for a business lender reads each broker application and its supporting documents and produces a readiness report. It cut checking time from around 25 minutes to around 5 per application.
What is a Copilot skill?
A Copilot skill is a written method that Microsoft 365 Copilot follows on its own, much like a standard operating procedure or a checklist. Copilot already knows how to write, reason, analyse and work across Outlook, Teams, Word, Excel and SharePoint. A skill tells it how one specific job is done in your organisation.
Inside, a skill is a small folder of plain-language files. Only the instructions are required. Knowledge, templates and small tools for exact calculations are added as the work demands. Anyone can open a skill and read it, so the people who own the process can check that it says what they mean.
Instructions
The steps, rules and judgement calls for the job, written in plain language.
Knowledge
Policies, price lists and reference material, read only when a step needs them.
Templates
The files it returns in your format: a PowerPoint template, a logo, a contract.
Tools
Small programs for calculations and formatting that have to be precise.
A skill can be as small as one page of instructions.
The document generation example above is the one we use in our training: a retail property portfolio with six shopping centres. Each month the centre managers send in reporting packs, 24 files in all, covering foot traffic, sales, occupancy, arrears, leasing and operations. Assembling the monthly portfolio review takes one to three hours, most of it spent copying numbers. Copilot Cowork can already do this work from a single instruction. Add a skill that records the team’s threshold for a significant change, the review layout and how exceptions are written up. The review then has the same structure and checks every month, and the portfolio manager’s time goes into deciding what management hears.
Why Copilot skills are the modern AI agents
Every AI agent runs on what the industry calls a harness. This is the software that lets the AI use tools, work with files, track its progress and work towards a goal. Copilot Cowork and Copilot Studio are harnesses. So is Microsoft Foundry, the Azure platform developers use to build custom agents.
Harnesses are capable and increasingly interchangeable. On its own, a harness is a generalist that can run almost any process once it is told how, and it knows nothing about how your organisation works. The intelligence that makes an agent useful to your business lives in the skill.
The AI platform
Uses tools, runs calculations, and reads and writes files and data. Copilot Cowork, Copilot Studio and Microsoft Foundry all provide it.
Yours
Your domain knowledge, your process and templates, and your judgement calls. This is the part your organisation builds and owns.
One Copilot Studio environment can run contract review and invoice triage side by side, with a different skill loaded for each.
When an organisation says it has built an invoice triage agent, the part it built and owns is the skill. The harness came with the platform. In that sense the skill is the agent, and the platform is where it runs.
Why build Copilot skills: lower cost, reuse and quality
A good prompt lives in one person’s chat history. A skill turns that know-how into a business asset, and three benefits follow:
- Lower cost. Copilot loads a skill’s detail only when a task calls for it, so each run processes less material. In Copilot Studio and Microsoft Foundry, where each run is billed, a proven skill can often move to a smaller, cheaper model once testing shows the output holds up.
- Reuse. The method is written once. What your most experienced person knows is recorded, shared across teams and kept when they move on. Improve the shared skill and everyone using it picks up the change on their next run.
- Quality you can check. A skill is written down, so it can be tested against real examples, given an owner and retested when the underlying model changes. The same steps, checks and layout run on every request, however it is worded on the day.
Those are the same controls our AI governance model asks of any AI work moving from personal use to governed delivery.
Portability: build a Copilot skill once, run it across platforms
Skills started at Anthropic, the company behind Claude. Anthropic introduced Agent Skills in October 2025 and published the format as an open standard two months later, with the specification itself released as open source.
The industry has moved quickly behind it. Microsoft uses the standard in Copilot Cowork, Copilot Studio and GitHub Copilot. OpenAI and Cursor support it too, and Microsoft counts more than 30 AI tools that read the same format. A skill is a set of plain-language files, so it moves between platforms with little or no rework.
A skill built once can run in each of these places:
| Where the skill runs | What it adds |
|---|---|
| Copilot Cowork | Where most skills are built and tested. A person runs the skill in a conversation and reviews every result. |
| Microsoft 365 Copilot agents | A focused assistant for a team, built around the skill. We expect skill support in Microsoft 365 Copilot agents to arrive around January 2027. |
| Copilot Cowork plugin | IT packages the skill as a plugin and makes it available to the users and groups who run that process. |
| Copilot Studio | A trigger and an action wrap the skill, so it runs as one step in an automated, governed business process. |
| Microsoft Foundry (formerly Azure AI Foundry) | Developers include the skill in a custom AI agent built on Azure, for processes that call for full-code development. Skills support in Foundry is in preview. |
| Other platforms | Claude, GitHub Copilot, OpenAI Codex, Cursor and other tools that support the Agent Skills standard can run the same skill. |
AI platforms change every few months, and capturing how your organisation does something is the expensive part of the work. When that work sits in a skill, it carries forward to whichever platform you adopt next. Your teams avoid rebuilding the same process for each new tool, and your organisation avoids being tied to one vendor’s agent format. Where a process calls for a custom build, our AI agent development work starts from the same skill.
Start with a Copilot skill before you automate or integrate
For any larger piece of AI work, our first question is whether the AI can do the task well enough. Automation and integration come after that. Connecting AI to core business systems, adding triggers and building approval flows take significant investment. If the AI’s output is not yet reliable, the organisation spends that money before anyone knows whether the idea works.
A skill is the lowest-cost way to answer that first question. The person who knows the process can write the instructions, run the skill in Copilot Cowork against real examples, read the result and refine it. Each cycle takes minutes. In our experience, testing and refinement take close to 90 percent of the effort in a working AI automation. A skill puts that testing in the hands of the people who know what a good result looks like.
Once proven, the skill stays the same through automation and integration. What changes is what sits around it. We cover the detail of moving a skill from Copilot Cowork into Copilot Studio in Copilot Skills: The New Unit of AI Automation, and our Copilot Studio Quickstart sets up the governed environment a proven skill moves into.
Advanced Copilot training: getting good at skills
Building a skill requires no developer. The most effective technique we teach is to record the person who does a job as they talk through their steps, then turn the transcript into the skill’s instructions. Their judgement calls become the skill’s rules. Existing procedure documents are often out of date, so recording the person is usually faster and more accurate.
The rest is practice: writing a description Copilot recognises, testing on messy real examples, and retesting when the model changes. Teams that build these habits become the advanced Copilot users other teams turn to, and their skills spread across the organisation.
Our advanced Copilot training, a half-day class within our Copilot adoption programme, covers skill design, testing on real work and the hand-over to Copilot Studio for automation. It takes teams who already use Microsoft 365 Copilot every day to stages three and four of the adoption curve.
Frequently asked questions
What is a skill in Microsoft 365 Copilot?
A skill is a reusable set of plain-language instructions that tells Microsoft 365 Copilot how to carry out one specific task the way your organisation does it. It can include reference material, templates and small tools for exact calculations. Copilot reads only the short description until a task calls for the skill, then follows the instructions, so the output has the same structure and checks whoever runs it.
What is the difference between a Copilot skill and a Copilot agent?
An agent has two parts. The platform, or harness, does the work: it plans, uses tools and reads and writes files. The skill holds the knowledge of how one specific job is done. The same platform, such as Copilot Cowork or Copilot Studio, can run many different skills, and each one turns it into a specialist for that task. The skill is the part your organisation builds and owns.
What does advanced use of Microsoft 365 Copilot look like?
Advanced use of Microsoft 365 Copilot goes beyond asking questions and drafting content. Advanced users write structured prompts, use the Researcher and Analyst agents, run multi-step work in Copilot Cowork and build skills that capture their own processes. The most advanced teams test those skills on real work and move proven ones into Copilot Studio, where they run automatically as part of a business process.
Can a skill built in Copilot Cowork be used in Copilot Studio?
Yes. Copilot Cowork skills and Copilot Studio skills follow the same open Agent Skills standard. A skill built and tested in Cowork can be added to a Copilot Studio agent with little or no rework. In Copilot Studio a trigger and an action are added around the skill, so it runs as one step in an automated business process. Other platforms that support the standard, including Microsoft Foundry, can run it too.
Can non-technical staff build Copilot skills?
Yes. A skill is written in plain language, so the people who know the process are often the best authors. A practical method is to record the person who does the task explaining how they do it and turn the transcript into instructions. The skill is then tested in Copilot Cowork on real examples and refined. Developers become involved later, when a proven skill is automated or connected to other systems.
What is advanced Copilot training?
Hypergen's advanced Copilot training is a half-day class on building Copilot Cowork skills and preparing them for Copilot Studio, run on enquiry. Participants learn how to design a skill, capture a process from the people who run it, test it against real work and prepare it for automation. It suits teams who already use Microsoft 365 Copilot day to day and are ready for advanced use of Copilot.
Ready for advanced Copilot training?
If you would like to learn more, contact us about our advanced Copilot training. The half-day class takes your team from everyday Copilot use to building, testing and sharing skills that run your business processes.