I am building a tool to search through open codebases across Internet.

Lets say you are building a guava caching layer in Java and stuck with either syntax issue or some dependency resolution, or you are totally new to caching in java. You can just search for terms like "CacheBuilder" across codebases on internet. This will give you code snippets for caching implementations actually running on production. You can then use that as a reference to get unstuck.

Do you feel that this will be useful ?

What would be potential use cases for such a tool?