Google Kythe

[1] The entirety of the Google team working on Kythe was laid off in April 2024, as part of a company push to move certain roles overseas.

This information obtained from running an instrumented build is stored in a language-agnostic graph structure.

Finally, this graph structure can be queried to answer questions about the code base.

In 2010, Google released a Python static analyzer which has been developed as part of Grok.

There was a browser client with support for querying the database and visually navigating through the source code.