Separate condition from outcome
A signal tells you that a script condition was satisfied with available inputs. It does not know your costs, constraints or future prices. Treat the rule and any proposed action as separate questions.
Understand changing bars
Values on an open bar can change. Historical and real-time plots can differ, a behavior known as repainting. Ask whether markers wait for the close and whether the script uses unconfirmed higher-timeframe data.
Inspect the evidence
A polished historical chart is not proof of live execution. Check whether markers move after reload, whether alerts match the displayed rule, and whether any evaluation includes costs. Closing-bar alerts do not eliminate every form of repainting.
Keep an observation log
Record the settings, timeframe and visible condition before the outcome is known. Compare later without deleting inconvenient examples. If the rule cannot be explained, pause rather than infer reliability from its appearance. When studying EdgeTrend, apply the same questions to its displayed signals and consult its documentation for the exact rules. The product name or a marker alone does not establish reliability or guarantee a return.
How to check a changing signal
Before a candle closes, record the symbol, exchange, timeframe, timestamp with timezone, settings and a screenshot. Record again after the close and after reloading. Compare the same candle, not the newest candle. This can reveal a changing marker in that observation, but one unchanged screenshot cannot establish that a script never repaints. If an alert disagrees with the chart, check its saved inputs, script version, firing condition and timing against the documentation. Candle-close alerts do not resolve every historical or higher-timeframe-data issue.
Official references
Source pages may be in English.