Exercises to practice on your own

What you learned today fades fast if you don't repeat it. Here are five exercises, from easiest to hardest, all on the same agent-workshop folder. Do them on different days: ten minutes a day is enough.

In each one, follow the three rules: ask for the what, plan first, check one thing.

Exercise 1: a new question about the data

In Plan mode:

Which day in September did I spend the most money, and on what?

Check it: look up that date in expenses.csv and confirm the amount.

Answer

September 9: groceries at the market for 61.75. It's the highest expense of the month, and since that day has only one row, it's also the day with the most spending. If the agent told you the 28th (58.30), it got it wrong: there's your check.

Exercise 2: add data without breaking anything

In Build mode:

Add three made-up October expenses to expenses.csv, with the same format and lowercase categories. Don't change the existing rows.

Check it: when you approve the change, only three new lines should appear at the end.

Exercise 3: update the summary

Update summary.md so it has one section per month, September and October, with each month's total by category.

Check it: the September total still has to be 385.15.

Exercise 4: have it explain something you don't know

Explain to me what a CSV file is and why the first line is different from the rest, as if I had never used a spreadsheet.

There's nothing to check with numbers here, but you can check the explanation: open the file and see whether what it told you describes what you see.

Exercise 5: a new folder, a job of your own

Create another practice folder, copy the same opencode.json from the workshop into it (so the agent asks your permission), and put something of yours inside that isn't sensitive: a list of books, recipes, or notes from a course. Ask the agent for something useful about it. You decide what.

Summary

Five short exercises to repeat today's work on different days.
In all of them: ask for the what, plan first, check one thing.