Google launches Code Wiki, a continuously updated & Gemini-powered documentation platform

Google has launched Code Wiki, a new platform that provides a continuously updated, structured wiki for code repositories. The platform leverages Gemini-generated documentation, so content is refreshed as the code evolves. Following every codebase change, Code Wiki automatically scans the repository and regenerates all documentation. This guarantees that the wiki content remains closely synchronized with the latest code.

Building on these dynamic updates, the platform includes an integrated chat agent. This agent references the always-current wiki as its knowledge base, enabling it to answer highly specific, repository-aware questions about the code. Developers interact with a model that understands their codebase in detail, not a generic artificial intelligence.

For deeper engagement, every section of the wiki and each chat response includes hyperlinks to the relevant code files and definitions. This interactivity allows users to move directly from concept-level explanations to exact files, classes, or functions. When exploring complex modules, developers can ask the Gemini-powered chat agent for clarifications using the real-time documentation as context.

On the visualization front, Code Wiki also generates up-to-date architecture, class, and sequence diagrams to help users examine complex code relationships as they exist now. Google is further developing a Gemini CLI extension to let teams run Code Wiki locally and securely on internal repositories.