TRADING SOFTWARE BLUEPRINT: ONE CLOSED-BAR ALERT

Fictional planning example, not a client result or an executed test report.

THE REQUEST
I want an MT5 indicator that shows one popup when a completed candle closes
above a chosen price. I do not want a bot that opens trades.

PLATFORM AND INPUTS
MetaTrader 5 / MQL5. The symbol and timeframe come from the chart.
One input: AlertLevel, a price selected by the user.
The buyer supplies the intended symbol, timeframe and one example candle.
Any existing source must be readable and authorized for modification.

SMALLEST USEFUL SCOPE
Evaluate the most recently completed candle once when a new bar starts.
If its close is strictly above AlertLevel, show one popup with the symbol,
timeframe and completed bar time. Each qualifying bar may produce one alert.
This is not a crossing rule: two consecutive qualifying bars each alert once.

THREE DECISIONS BEFORE IMPLEMENTATION
1. Above the level or crossing from below? This example uses above the level.
2. Popup only or also push/email? This example includes popup only.
3. Replay old signals on attachment/restart? This example does not replay them.
On attachment or restart, record the current bar and wait for the next new bar.

DONE WHEN: THREE PROPOSED ACCEPTANCE CASES
1. Positive: after a candle closes above AlertLevel, the first tick of the next
   bar produces one popup identifying that completed candle.
2. Negative: a candle closing at or below AlertLevel produces no popup when
   the next bar starts, even if its intrabar high exceeded the level.
3. Duplicate/restart: later ticks do not repeat an alert for the evaluated bar.
   Reattaching or restarting does not replay that bar. The next newly completed
   qualifying bar is evaluated normally and produces one popup.

EVIDENCE TO REQUEST AT DELIVERY
Editable .mq5 source, a compiled artifact for the agreed platform version,
compile output, evidence for all three cases, a change note and setup steps.
The cases above are a test plan. None has been run for this fictional example.

OUTSIDE THIS SCOPE
Order placement, account access, push/email setup, historical signal replay,
multi-symbol scanning, profitability claims and strategy recommendations.

YOUR NEXT STEP
Replace the platform, rule and examples with your own. Resolve contradictory
rules before buying implementation. Use https://stratcorealpha.com/blueprint
for a free draft or an optional personal review of one software problem.
No trading returns are promised. No purchase is required to use this example.