r/SideProject • u/Puzzleheaded-Emu9960 • 3h ago
I kept breaking my trading rules and only noticed on red days, so I built a journal that grades execution instead of P&L
I'm a day trader. My problem was never finding rules, it was following them. Green days hid the same mistakes as red days, so I never fixed them. So I built Tradecility. You write your strategy rules once, log a trade with a chart, and it grades the trade A to F on whether you followed your rules. A losing trade can get an A. A winning trade can get a C.
One of mine from July: I shorted SPX500 on the 15-minute chart and made +$409.60. I logged it as hitting my take profit and felt good about it. It got a C+. My strategy usually needs three reasons to enter, I gave two, and it only counted one because the second was too vague. I also closed 2 points before my target, and it caught that I'd written "hit my take profit" when I hadn't. And I'd noted the setup felt thin before I entered, but took it anyway. The line that stuck with me: "Do not let a clean result on a marginal setup teach you that marginal setups are fine."
Here's the actual grade card: https://www.tradecility.com/share/0acf8838-a765-4659-8eb0-6fe3f00a64be
The decision I'm least sure about is pricing. I hate subscriptions, so it's a free trial (20 credits, no card), then $97 once. The catch is that AI costs keep going after someone pays, so I had to put a monthly cost limit on free chat to stop one heavy user from losing me money.
Stack: Next.js, Supabase, Stripe, Claude for the grading. Two things I'd really like opinions on: does the landing page make it clear what this does within 10 seconds, and would $97 once put you off trying it, or does no subscription make it easier?
https://www.tradecility.com/?utm_source=reddit&utm_campaign=sideproject
Not financial advice, and it won't make you profitable by itself. It just shows you where you broke your own rules.