Independent publisher · Enterprise AI adoption & governance

Kesslernity

Governed AI, shipped by someone who runs it in production.

Deployment kits, cost models, agent design guides and decision frameworks for Microsoft 365 Copilot teams. Each one was run in production before it shipped, with the failures documented next to the wins. Mathieu also maintains four public Copilot libraries on GitHub (400+ prompts, 94 Copilot Studio agents, 82 Copilot Chat agents, 31 Cowork skills) that have earned more than 1,000 stars, and writes AI at Work, a biweekly newsletter for enterprise teams.

Find what you need Start free
Battle-tested in production environments.
Microsoft's CMO for AI at Work
on the public Copilot prompt library

Instant download

Pay, download, start. No subscription, no account to maintain.

Updates included

Buy once. Every later revision lands in your Gumroad library.

Vendor-neutral

Independent analysis. Not affiliated with or endorsed by Microsoft.

Invoice on request

Email after checkout for an invoice you can put through expenses.

What are you here to do?

Pick the job. Each route runs free first, then paid, in the order you would actually need it.

Start free

Every route has a free front door. Take the one that matches your job, no card needed.

Everything, by job

The full catalogue.

For trainers, consultancies & MSPs

Buy once. Co-brand it. Run unlimited paid cohorts.

The Trainer & Reseller licence puts your own name on the full curriculum and lets you sell it as your own training, with per-sale licence keys. One kit typically pays for itself on the first cohort. Questions before you buy: mathieu@kesslernity.com.

Work with me

Still not sure which one you need?

Tell me what you are shipping and which stage you are stuck at. I will point you at the right resource, or tell you that none of them fit. Team and org licences, private cohorts and governance reviews go through the same address.

mathieu@kesslernity.com Read the full catalogue Connect on LinkedIn