Checkpoint
One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.
Lesson two lock-in. The starter declares three variables for the
setup steps you just did. Write three print(f"...") lines so the
output is exactly:
install: one command, the native installer script
verify: claude --version prints a version number
sign in: run claude, approve in the browser, no password shared
Type the three lines and run it.