The AI tools your firm deployed last year answer questions. The ones arriving now work at your side. Agentic desktop AI does not hand you a bulleted outline and wish you luck. It pulls the research, builds the deliverable, writes the memo, and drops the finished work product in your working folder. It remembers your preferences, your firm's conventions, and the state of an ongoing matter. It executes multi-step workflows on its own. It is not a smarter chatbot. It is a new kind of colleague — one that needs to be onboarded, trained, verified, and managed just like any other. Written for Knowledge Management and Innovation leaders in the legal industry, this book is a practitioner's field guide to what that means in practice. Nine chapters cover the full arc: from understanding the three categories of AI tool reshaping professional work, to the context engineering and delegation practices that make agentic tools effective, to the institutional questions that no one can answer yet but every firm needs to be asking now. The author, a legal technology consultant who has spent two decades at the intersection of knowledge management and innovation, built this book using the same agentic tools and practices it describes. The methods are not theoretical. They are the ones that produced the thing you are reading. For KM and Innovation professionals ready to stop running pilots and start building infrastructure. For firm leaders who need to understand what is actually changing. For every professional who suspects the AI on their desktop is about to rearrange their job — and wants to be the one directing the rearrangement.