Lockfile
An automatically generated file that notes the exact versions of the parts the project uses. It isn’t edited by hand.
How it appears in the course
for p in ... goes one by one through the protected list: .env (where the passwords are), package-lock.json, the .git/ folder (the project’s history), the migrations/ folder (changes to the database).
Where you learn it
In module 07 · Hooks: automatic actions, in the Claude Code for Beginners course.
Related terms
Learn Claude Code from zero, in plain English
12 modules with 1–2 minute lessons, which you can also do on your phone. The first two modules are free.