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Plan a Code Change Before Writing Any Code

Your supervisor asks you to add error handling to load_data.py — right now, it crashes with an unhelpful traceback if a CSV file is missing or malformed. This touches at least two functions across the script, so you want a clear plan before touching anything.

Plan mode reads your project with read-only tools and returns a numbered implementation plan for you to review. No files are changed until you explicitly approve.

The team's project is already in your working directory at /home/repl/climate-analysis/.

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Claude Code 101

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Instructions

  • Start Claude Code with claude.
  • Enter Plan mode by typing /plan or pressing Shift+Tab until you see "Plan Mode."
  • Ask Claude to plan how to add error handling to load_data.py for missing or malformed CSV files.
  • Review the plan Claude produces, then type /exit to exit Claude Code.

Note: Claude may ask you questions to implement the plan. Your choices don't affect the exercise grading.

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