“Claude Code seems useful for work efficiency.”
You've heard that and installed it, but...
“So, what exactly should I make it do?”
Are you stuck there?
Actually, this is the most common stumbling block.
You have the tool. But you don't know which tasks in your own work to delegate. So, you end up not using it at all.
As a business professional, there's nothing more wasteful.
Today, I'll introduce 10 “magic prompts” you can copy and use immediately.
All of them can be used just by copying, pasting, and slightly tweaking. These 10 will definitely make your work faster starting tomorrow.
Let's get started.
What Makes Claude Code Different in the First Place?
Just 30 seconds before the prompts.
What's the difference between Claude Code and a regular AI chat (like ChatGPT)?
The biggest difference is that it can directly read and write files on your computer.
Regular chats just talk within a screen.
But Claude Code enters your PC, organizes files, creates tables, and actually moves its “hands” to generate documents.
It's not an “AI that tells you how to do it,” but an “AI that finishes the work for you.”
That's why it's incredibly compatible with daily operations.
Now, let's look at the 10 specific prompts.
Prompt 1: Aggregating Sales and Performance Data
Monthly numerical aggregation.
This always happens before management meetings or reporting to supervisors.
Read this sales CSV and create a summary table by month and department. Also, calculate and include month-over-month and year-over-year comparisons.
It reads the file, aggregates, and saves it to a new file.
No more hassle of building formulas or repeating copy-paste.
Tip: If you tell it the format for the submission destination, like “in this format for a graph,” it will come out in a ready-to-use form.
Prompt 2: Listing Invoices and Expenses
Accounting and reimbursement of out-of-pocket expenses.
Summarize invoice PDFs accumulated in a folder into a list.
Read all the invoice PDFs in this folder and create a list of vendor names, amounts, dates, and suggested account items.
It reads the contents of the PDF, extracts the necessary items, and summarizes them in a table.
End-of-month settlements and processing before closing become dramatically easier.
Tip: If you add “separate those where the amount cannot be read,” it will set aside items that need confirmation, preventing check omissions.
Prompt 3: Creating Meeting Minutes
Minutes after a meeting.
This is a prime example of a task business professionals “don't want to do” most.
Organize this recording transcript into meeting minutes. Extract “decisions” and “next actions (with person in charge and deadline)” separately.
Rambling conversation notes turn into structured minutes and To-Do lists.
It will be ready to share 5 minutes after the meeting ends.
Tip: If you give it your company's minutes format and ask it to “use this format,” it will come out in the usual style.
Prompt 4: Drafting Proposals and Internal Documents
Creating documents from scratch is exhausting.
But if you have a draft, things move forward at once.
Read this template and create a draft proposal for Company XX. Also, refer to the past proposals folder.
This is the true value of Claude Code—it creates drafts while referring to past documents and templates on your PC.
It's not from scratch; it follows your company's “style.”
Tip: Don't aim for perfection; ask it to “create a rough draft” and finish it yourself for the fastest results.
Prompt 5: Summarizing Long Documents and Emails
Long documents or email threads you have to read.
When you don't have time, you want to grasp the main points first.
Read this PDF and summarize the main points into three. Make it so a busy executive can understand it in 30 seconds.
Whether it's a thick document or a long exchange, it extracts only the most important parts.
Tip: If you specify “start with the conclusion” or “from this perspective,” it will be organized in a way that can be used directly for reporting.
Prompt 6: Professional Emails That Don't Cause Friction
The more sensitive the email, the more you get stuck at the beginning.
Refusals, reminders, apologies, consulting on deadlines.
It's exactly those “heavy-hearted emails” where it shines.
Write an email to a client asking for a deadline extension. Make it polite, but in a tone that conveys sincerity. The recipient is someone who always takes care of us.
Just by conveying the situation and tone, it creates a message that doesn't cause friction.
Tip: If you ask for fine-tuning like “make it a bit more formal,” it will naturally get closer to your own words.
Prompt 7: Comparison Tables for Competitors and Services
When considering or submitting something for approval, a comparison table makes decisions faster.
But researching and lining them up is tedious work.
Research the three major companies in [service genre] and create a comparison table. Use price, main features, support system, and suitable company size as the axes.
It researches, organizes, and creates a table all at once.
It can be used directly for tool selection or approval documents.
Tip: If you specify the “axes” of comparison yourself, only the information necessary for judgment will be neatly aligned.
Prompt 8: Organizing Large Numbers of Files
Is your shared folder or desktop cluttered?
Folders where documents, PDFs, and screenshots are piled up messily.
Check all the files in this folder, create folders by type and project, and classify them.
Even if there are hundreds, it's finished in a few minutes.
Organization that would take hours manually ends with a single sentence.
Tip: It's safer to try it on a practice folder copied before the actual folder.
Prompt 9: Creating Report Comments from Data
After aggregating numbers, you worry about “how to report this.”
You can also leave the comment part to it.
Look at this summary table and summarize three points of noticed trends and hypotheses for their causes for a report to my supervisor.
A mere list of numbers turns into an “insightful report.”
Tip: Since these are just hypotheses, make the final judgment yourself. Using it as a “starting point” for thinking is the smart way.
Prompt 10: Every Morning's Business Briefing
Finally, a prompt to change the start of your day.
If you link it with email or calendar, you can do this:
Check emails from yesterday to today and today's schedule, and suggest three things to do today with priority.
The hassle of checking emails and schedules separately every morning disappears.
A state where you can see “what to start with today” at a glance is automatically prepared.
Tip: This requires some setup, but once you get used to it, the entire time for morning planning will be saved.
Two Cautions When Using
It's convenient, but please be careful about two things.
① Try with copies for important files
Claude Code actually operates on files.
It's safe to try it on a “copied practice folder” first. Use it on actual files after you get used to it.
② Do not pass confidential or personal information as is
Do not pass customer information or trade secrets as they are; remove or anonymize those parts before use.
And always perform a final check of the results produced by the AI with your own eyes.
Especially for things involving money, numbers, or things going outside the company, be thorough.
Ultimately, you are the one responsible, not the AI.
Summary: Please Try Just One First
I've introduced 10.
Let me list them again.
- Aggregating sales and performance data
- Listing invoices and expenses
- Creating meeting minutes
- Drafting proposals and internal documents
- Summarizing long documents and emails
- Professional emails that don't cause friction
- Comparison tables for competitors and services
- Organizing large numbers of files
- Creating report comments from data
- Every morning's business briefing
You don't need to remember them all at once.
First, try just one that is close to the task you find “most tedious.”
Once you experience “Wow, this finished in an instant,” you won't be able to go back to the old way.
AI is in an era where there is a huge difference in work speed between those who use it wisely and those who don't.
That difference isn't talent.
It's just “whether you know it or tried it.”
Whether you try one today will change your workload six months from now.
Finally
Thank you for reading this far.
I usually post specific stories about “using AI to make work and side hustles easier and faster” every day on X (@ryuji_affiliate).
How to utilize the latest tools in practice.
I'm following it in real-time, so if you find it interesting, please follow me.
Let's master new tools faster than anyone else together.
Ryuji Yamamoto (@ryuji_affiliate
