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Semantic Search Beats String Search Once Code Gets Big

From the GitRub Blog · Code Intelligence for Large Codebases

String search is perfect when you know the exact name of what you want. In a small codebase, you usually do. The function you need is one you wrote last week.

Scale breaks that assumption. In a codebase with millions of lines and hundreds of contributors, you constantly need code you have never seen, written by people who have left, named according to conventions you do not know.

What you do remember is intent: I need the thing that validates payment webhooks, I need the retry logic for the queue. Semantic search lets you ask for behavior and get the relevant symbols even when your guess at the name is wrong.

GitRub indexes meaning alongside structure, so the search box understands what you are trying to do rather than only what you typed.