- The one-click panel off on charts where an EA runs, so a misclick can't add a manual trade to an EA-managed symbol.
- Separate profiles: one for manual trading, one for EAs.
- Default volume in the trade panel set to the minimum, so an accidental click is small.
- Keyboard shortcuts for trading disabled unless you use them deliberately.
- Algo trading enabled only on the terminal that needs it.
EA code can protect itself too: ignore positions without its magic number, and log any unexpected position on its symbol.
A worked example of the risk: a manual one-click buy on a chart where a grid EA runs can be treated by the EA as part of its basket and managed with the grid's logic.
How do you separate manual and EA trading?