Claude Code stops in the middle of a big refactor "you've hit your limit"

When Claude Code stops in the middle of a long reasoning, how to do it? Do we have to start all over again? Claude Code has been working for 30 minutes to reorganize a large monolith python file (to cut it cleanly), and it just stopped because of the limit. I find it amazing that it does not finish the task in progress, or that the task in progress does not remain "pending" for the limit to be reset after a few hours and then resume.