What is Claude Code — CCA-F Exam Prep

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L1.20|What is Claude Code
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Real story
A split screen. Left: a countdown timer showing '30:00' in red. Right: a terminal with Claude Code running -- it has found a bug in a file, displayed the problematic line, and proposed a fix. The timer on the right shows '4:00 elapsed.' 26 minutes to spare. Intense but clean.

30 minutes to fix a production bug.

You open Claude Code in your terminal. It reads your entire codebase, finds the bug in 90 seconds, explains it, writes the fix, runs the tests.

4 minutes total. 26 minutes to spare.

That's not a demo. That's Tuesday.