We typically encourage traders to limit risk to a maximum of 1-1.5% per trade idea to support healthy risk management habits. This is not a robust rule for Phase 1 and Phase 2 accounts, but risking a significant part of your Maximum Daily Loss on one idea can suggest that the strategy may not be well-tested or that conviction in the setup is lower.
For Funded Legacy accounts, to avoid uncertainty and ambiguity, a risk limit of 1.5% per trade idea is a strict rule.