Apress / 2026
Enterprise Copilot Architecture with .NET
Designing, extending and governing Microsoft 365 Copilot in real tenants.
Writing now
A working architecture book for developers who have to make Copilot behave inside an enterprise tenant: extending it with .NET, wiring it to Microsoft Graph, and governing what it can reach. Every pattern in the book has been run against a live tenant, not a sandbox.
3 of 14 chapters drafted
What you will learn
- How to extend Microsoft 365 Copilot with .NET plugins that survive a tenant review.
- Where Microsoft Graph permissions actually bite, and how to scope them down without breaking the agent.
- Governance patterns that satisfy Purview and the compliance team at the same time.
- How to test an agent against a real tenant without shipping production data into a prompt.
- The failure modes that only appear at a few thousand seats.
Chapter outline
- 01 The new era of AI-augmented work Drafted
- 02 Under the hood: Copilot architecture and Microsoft Graph Drafted
- 03 Delegated work patterns: what to hand off and how Drafted
- 04 Extending Copilot with .NET In progress
- 05 Grounding, retrieval and the data boundary Planned
- 06 Identity, consent and least privilege Planned
- 07 Governance with Purview Planned
- 08 Testing agents against a live tenant Planned
- 09 Observability and cost control Planned
- 10 Rollout patterns at scale Planned
- 11 Failure modes and recovery Planned
- 12 Migrating from custom bots Planned
- 13 The road to autonomous agents Planned
- 14 What comes next Planned