Edition of October 26, 2026Use cases · with prompt · with sourcePTEN

Home / Personal Finance

Personal Finance · Blog · 🇺🇸 United States · via agentusecases.ai

A portfolio plan built from brokerage exports

Matt Stockton gave Claude the CSVs and a prompt with goals, then said: "ask me all the questions".

Profession
Investor
Tools
Claude Code
Source
mattstockton.com ↗
Country
🇺🇸 United States
Found via
agentusecases.ai (Alex Finn) ↗
Report date
February 10, 2026
Verified on
October 25, 2026
Illustrative photo: Finance sector

What they did

He pointed Claude Code at a folder with brokerage CSVs, a draft of other balances and a detailed prompt with constraints and goals. Claude wrote code to read and classify the assets, asked many questions and put together the rebalancing plan.

How it went

The blog shows the resulting plan and the question-and-answer process.

Good to know

Asking the AI to question you exhaustively before proposing anything is what gives the result its quality. This is not investment advice.

The prompt

Here are my holdings [paste or attach] and my goals: [time horizon, risk, targets]. Before proposing anything, ask me every question you need. Then show my current allocation by asset class and an adjustment plan with pros and cons.

Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).

Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Case found via agentusecases.ai (Alex Finn); text and prompt rewritten by us. Found a mistake?

Illustrative photo: Finance sector01
Personal Finance🌐 International

Agent cleans up the finances and finds errors in the tax return

The bot downloaded hundreds of statements, compared the tax return with the IRS records and found duplicate charges.

InvestorGrok Bot
X · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector02
Personal Finance🇺🇸 United States

A professor gathers tax documents and deductions with skills

Chris Blattman, a professor at the University of Chicago, built routines that hunt for tax documents in Gmail and assemble spreadsheets.

TeacherConsultantClaude Code
Blog · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector03
Personal Finance🌐 International

A full investment memo on a company

The author had Claude download Adyen's reports and build a business overview, an Excel model and a thesis.

InvestorClaude Cowork
Newsletter · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector04
Personal Finance🌐 International

Automatic expense tracking on a Raspberry Pi

Fahad Hasin, who says he knows little about coding, had Claude build an expense tracker that runs every night.

Marketing ProfessionalClaude CodeLlama
Newsletter · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector05
Personal Finance🌐 International

Filling out the accountant's questionnaire with AI

The author had Claude read the fields of the accountant's form and fill it in from their documents, flagging what was missing.

Salaried EmployeeClaude CodeClaude in Chrome
Newsletter · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector06
Personal Finance🇧🇷 Brazil

Preparing your income tax return with an AI agent

A developer used Claude Code with Open Finance data to organize tax statements and build the return, leaving only the review for himself.

DeveloperTaxpayerClaude CodeMCP
TabnewsSee prompt →
Illustrative photo: Services/Technology sector07
Personal Finance🇫🇷 France

Frenchman finally cancels seven subscriptions he had been putting off

The agent didn't just make a list: it canceled and closed the accounts for seven services.

EntrepreneurGrok Bot
X · via agentusecases.aiSee prompt →
Illustrative photo: Finance sector08
Personal Finance🇦🇺 Australia

Forgotten money at old addresses in two countries

A user gave the agent a list of places they had lived; it found an extra US$ 500 plus funds in the US.

ConsumerAgente de IA
X · via agentusecases.aiSee prompt →

The newsletter · Caderno de IA

As 5 da semana

5 AI use cases with prompts, every Tuesday in your inbox. Free, with sources. The newsletter is written in Portuguese.

No spam. Unsubscribe anytime.

We use your email only to send the newsletter. See the privacy policy.