Hand off a recurring report and test it on a week you already know

How this helps you

You find out whether your Bot can really take a recurring report off your plate, using a test with a known right answer.

I produce [report name] every [Friday]. Attached are the inputs and the finished report for [week A], plus my business rules: [rules, e.g. don't count a moved project twice; finance tab wins when totals disagree]. Work out the repeatable steps and turn as much as possible into a process you can run the same way every week. Then rebuild the report for [week B] from its inputs only, without looking at the finished version, and list every number you produced. Flag anywhere you had to guess or a rule was unclear. Don't send the report to anyone.

What they did

Nate B Jones argues that whether an agent is worth its cost depends on the work you give it, and uses an inherited weekly report as his example: the giant file, the numbers you copy over, the formatting on one tab, the totals that don't match. Using an agent to speed up one painful step is a reasonable start, but he pushes for more: try to take the whole job to done. Give the agent previous input files and the business rules you keep in your head, like why a moved project shouldn't be counted twice. Then test it by having it rebuild an old week's report where you already know the answer, and make the test a hard one. His point on value: a report nobody cared about going from 20 minutes to two isn't much of a win, but taking a painful job off a whole team is. He also suggests judging results by whether it found something you wouldn't have noticed, and how much of your time went into checking and fixing it.

Who it's for: People who own a recurring report or reconciliation that eats part of every week.

Before you start

• A recurring report you produce by hand.
• Two or more past weeks of input files and the finished reports for them.

How to try it

1. Gather the inputs and finished report for at least two past weeks, and write down the rules you apply in your head (exclusions, double-count traps, rounding, which tab wins when two disagree).
2. Send the prompt below with one week's inputs and finished report, plus your rules.
3. Have it rebuild a different past week without seeing that week's finished report, then compare its numbers with yours line by line.
4. Fix the rules wherever it differs, and rerun the test until it matches on a hard week.
5. Only then let it produce the live report, with you checking the first few before anyone else sees it.

What to expect

A rebuilt report for the test week plus a list of guesses and unclear rules. You compare it with the real one; where they differ, you add or fix a rule and run it again.

Common mistakes

• Testing on the same week you gave it as an example. Use a different, harder week.
• Leaving the rules in your head. Nate's point is that those unwritten rules are what the agent most needs.
• Calling a small time saving a win. Ask whether it found something you'd have missed or took real pain off the team.
• Sending the first live report without checking it yourself.

Related tips

• Turn a repeated job into a script the skill runs: Do a weekly job once with your Bot, check it, then have it rewrite the job as a plain script and save a skill that runs the script and reports in two lines.
• Turn a messy CSV into a report that says what to fix first: Hand your Bot a messy export and ask for a cleaned, scored report with a do now / do later list.
• How to trust your Bot's work more: Put most of your effort at the top: code structure, then lint/tests/CI, then prose rules, then human review.

Worth knowingCarved from a segment of this video starting at 6:24. Paraphrased by us; watch the original for the full walkthrough.

Learn more: Grok Bot Use Cases: Real Workflows From Real Users · All Grok Bot workflows tips