What is Codewiki?
CodeWiki, introduced by Google in November 2025, is an AI-native documentation fabric for Google Cloud customers, currently in public preview at codewiki.google. It revolutionizes code documentation by using a Gemini-powered system to scan entire repositories after every commit, regenerating hyperlinked documentation and injecting diagrams to ensure engineers always have current and accurate information. Each CodeWiki page includes a Gemini chat agent that answers natural-language questions using the documentation as context, accelerating onboarding for new contributors, SREs, and auditors. Google is also developing a Gemini CLI extension for local use, extending CodeWiki's automation to private or air-gapped repositories.
How to use Codewiki?
CodeWiki automatically scans a repository after each commit to understand code, assets, and dependencies. It then regenerates structured wikis (architecture, guides, API docs, dependency maps) to provide current documentation. Users can navigate seamlessly through hyperlinked content that points to specific files, functions, or diagram segments. Additionally, a built-in Gemini chat agent allows users to ask natural-language questions about the codebase, with answers referencing the updated wiki content.
Is CodeWiki a Google product?
Yes, Google introduced CodeWiki in November 2025, and it's an AI-native documentation fabric for Google Cloud customers.
How does CodeWiki stay up-to-date?
CodeWiki's Gemini-powered system scans an entire repository after every commit and regenerates hyperlinked documentation and diagrams automatically.
Does CodeWiki include AI chat?
Yes, each CodeWiki page ships with a Gemini chat agent that answers natural-language questions using the current CodeWiki as context.
How can teams run CodeWiki on private repos?
Google is shipping a Gemini CLI extension that teams can run locally, bringing CodeWiki's automation to private or air-gapped repositories. It is currently on a waitlist.
Are there other tools named CodeWiki?
Yes, the document lists FSoft AI4Code, CodeWikiOrg, and CodeWiki iOS App as other entities sharing the name, each with different owners and core focuses.
What types of diagrams does CodeWiki generate?
CodeWiki emits architecture, class, and sequence diagrams that mirror the repository's current state.
Can CodeWiki help with onboarding new developers?
Yes, CodeWiki makes onboarding faster by distilling repo intent and dependencies, allowing new contributors to make their first commit on Day 1.
Is CodeWiki available for all programming languages?
The main Google Code Wiki scans 'an entire repository' which implies broad language support, but specific language compatibility is not explicitly detailed for this product. However, FSoft AI4Code (another CodeWiki entity) supports 7 programming languages.
