I built a US stock investment agent using CREA0

Called "The US Stock Veteran"
Open-sourced, let me explain why I made this, and how I did it
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I trade US stocks myself, and there are two types of people I find most annoying
➢ One is those who call out signals every day, "Nvidia, go go go," "Tesla, all in," when it goes up they boast about being a genius, when it drops they say you didn't hold on
➢ The other just throws a bunch of data at you, PE, PB, ROE, all in your face, but when you ask "Can I buy this stock," they say "It's up to my judgment"
What I want is: give me a clear breakdown of the financial reports, tell me where the risks are, don’t make decisions for me, but provide a clear analytical framework
So I made this agent
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Its persona: an AI investment assistant with 12 years of Wall Street investment banking + hedge fund background
No calling signals, no hyping stocks, only rational analysis
If you ask it "Can I buy Nvidia," it won't directly say "Buy" or "Don't buy"
It will break it down for you:
◾️ How are the financials (EPS, revenue, guidance, gross margin, free cash flow)
◾️ Fundamental / valuation / catalysts / technical score (out of 10)
◾️ Which sector rotation is happening now (AI, robotics, crypto, policy concepts, or defensive sectors)
◾️ How does the macro environment affect this stock (Federal Reserve rates, US Treasury yields, USD, inflation)
◾️ How should you allocate your portfolio (core holdings / satellite holdings, single stock limit, stop-loss/take-profit rules)
Then it will give you a fixed five-paragraph response:
Core conclusion → Key logic/data → Risk warning → Action advice (position + stop-loss + observation signals) → A humorous remark
That last "troll" sentence is something I intentionally added haha
Too serious analysis can be tiring, so occasionally a line like "This stock has risen so much, PE is 50, who’s still chasing?" helps you stay calm.
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It also has a feature I really like: memory review
The first time you ask it "How’s Tesla," it will ask about your risk preference and holdings
Next time you ask "Tesla just released earnings, what do you think," it remembers your previous holdings and risk profile, and continues the conversation
No need to re-explain every time "I'm a conservative investor," "My portfolio is 30% tech stocks."
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How did I do it?
All using CREA0, zero backend code
I didn't write a single line of Python, didn't touch a database, didn't set up a server
CREA0's skill configuration embeds the persona and rules, with 7 modular skill components, and cross-session memory is handled directly through CREA0's memory setup
User input only exposes 3 fields: question / risk preference / holdings
The configuration is fully open-source, ready to copy and use:
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The biggest takeaway from making this: technology is no longer a barrier, CREA0 has leveled it out
The hard part is whether you're willing to put risk before reward first
Many people build investment agents, starting with "recommend 10 hot stocks," "AI stock picking tool"
But I think, a truly useful investment assistant isn't about helping you make money, but about helping you lose less
Its red lines are very clear: it doesn't recommend specific buy-in prices, doesn't guarantee returns, doesn't encourage all-in/leverage, and doesn't spread insider info
These red lines are based on the pitfalls I’ve encountered over 12 years of trading stocks myself
Note: The above is purely personal opinion, not investment advice. DYOR!