$ sem impact authenticateUser

  ⊕ function authenticateUser (src/auth/login.ts:26)

    → depends on:    db.findUser, rateLimiter.check
    ← used by:       loginRoute, authMiddleware
    ! 42 entities transitively affected
    ᛋ 7 tests affected

I got about halfway through reinventing something like this last year (minus the git part). I was trying to make a graph of dependencies in the codebase. (I actually got pretty far with a regex!)

Ha, the regex approach is honestly how a lot of people start with this problem and you can get surprisingly far with it until you hit the edge cases around aliased imports, re-exports, and nested scopes where things start falling apart. That's basically why we went with tree-sitter under the hood it gives you the actual parse tree so you don't have to keep patching regex patterns for every new language construct.