Focusing on MT4 (MQL4), I develop indicators and verification tools for FX and binary options. I prioritize system trading that can be tested with clearly defined rules, rather than discretionary trading that relies on gut feeling or intuition. It’s not about vague judgments like “it seems to be rising,” or “the chart feels good,” but about creating a trading environment that can be verified with numbers: - Under what conditions signals appear - On which time frame to enter - How many bars later, or after how many bars the judgment is made - What the win rate is - Whether there are enough trading opportunities I am dedicated to building a trading environment that can be verified numerically in this way. In particular, for MT4 I develop signal indicators for verification, win-rate aggregation, performance comparisons by judgment time, and buffer-output indicators.