Question 1

Is there a paper-trading mode before I go live?

Accepted Answer

No, and the README leads with that warning: there is no paper mode and it places real orders with real money through your broker account. It is experimental, offered with no warranty, and the author's instruction is to start with LIVE_QTY=1, which forces a single share while the plumbing is proven.

Question 2

What does Jev actually decide, and what stays in code?

Accepted Answer

Jev classifies and ranks Nifty-50 names on a two-stage pass every 15 seconds and votes on exits (take_profit, thesis, exit_now). Code sizes positions, places the stop, enforces the daily loss cap and the 15:10 flatten, and manages requotes, so a model answer never places an order by itself.

Question 3

Which broker path is actually proven?

Accepted Answer

Kotak Neo is described as verified live. Zerodha Kite Connect is written against the v3 docs but not yet verified live, and its session expires around 06:00 IST daily, at which point the engine halts entries and alerts until you supply a new token and restart. Kite also needs separate market-data and historical-data add-ons.

Question 4

Will mock mode accidentally trade?

Accepted Answer

Not by default. MODEL=mock is observe mode unless ALLOW_MOCK_TRADING=1. Replay is the safer way to study behaviour: it runs the real decision loop over a date's one-minute bars on a virtual clock with pessimistic simulated fills, and it writes to its own database rather than the live one.

Question 5

How do I run it the first time?

Accepted Answer

Copy .env.example to .env, then run pnpm install, pnpm probe, pnpm calibrate and pnpm start. The dashboard is at 127.0.0.1:8080, reached over an SSH tunnel or Tailscale, where you set the capital Jev can deploy.

Question 6

How does position sizing work?

Accepted Answer

Risk per trade is max(RISK_PER_TRADE, capital × RISK_PCT), and quantity is that risk divided by the stop distance, capped by MAX_NOTIONAL and free capital. LIVE_QTY=1 forces a single share for the plumbing week, then you set it back to 0.

Question 7

How does replay differ from live trading?

Accepted Answer

pnpm replay runs the real decision loop over that day's one-minute bars on a virtual clock with pessimistic bar-based simulated fills, beside the live dashboard on 8081. It writes to data/replay-<date>.db and never the live database, and it shows how Jev reads price and volume because bars carry no book or flow data.

Warrenduffer

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