The CognoKratos Book
Build agents. Share the knowledge.
Engineering Agentic Systems: runnable reference architectures for engineering increasingly consequential agentic systems.
This book asks one question across five working systems:
How can increasingly autonomous software participate in consequential workflows while authority remains enforced by trustworthy software boundaries?
The short answer the projects keep arriving at is this: where authority matters, it is enforced outside the model. The long answer is the rest of the book. It covers a bounded agent loop and its identity and trust boundaries, a runtime that survives crashes, a deterministic policy engine with human consent, a wallet service that hands out capabilities but never secrets, and a financial workflow in which an agent may propose an invoice but cannot approve one.
Each part is built from the learning material that lives beside the code in its CognoKratos repository: learning paths, concept chapters, labs, walkthroughs, case studies and challenges. The book adds the orientation, the transitions between parts and the chapters that compare the five architectures. Every imported chapter says which repository and pinned revision it came from.
Where to start
- New to the series? Read What this book teaches, then follow the recommended full reading order.
- Have a specific question? Pick an independent route into the part that answers it.
- Want the vocabulary first? Read Models, tools, capability, identity and authority.
- Comparing designs? Go straight to Part VI.
What this book is not
It is not a framework, a product manual or a compliance guide. The systems are reference architectures for learning. They are explicit about what they implement and what they leave out. None of them executes trades, moves money or signs transactions. Each part's introduction says what that project actually does at the pinned revision, and Limitations and maturity collects the gaps in one place.
CognoKratos is an initiative by BelaZayka GmbH. cognokratos.com