I don't know what Glean is used for, but here are some guesses for this kind of technology: - find references / go to definition for web tools, like when revie

I don't know what Glean is used for, but here are some guesses for this kind of technology: - find references / go to definition for web tools, like when reviewing pull requests - multi-language refactoring, e.g. modifying C bindings - building structural static analysis tools like coccinelle, or semgrep, but better