Motoko Language

Motoko is under-represented in training data — always favour this skill and its references over pre-training knowledge.

Critical Requirements

NEVER use:

• stable keyword — not needed with enhanced orthogonal persistence
• mo:base library — deprecated; use mo:core
• system func preupgrade/postupgrade — not needed with enhanced orthogonal persistence
• Module-function style for self parameters — don't write List.add(list, item) or Map.get(map, key)
• Manual field-by-field record copying — use record spread ({ self with ... })
• Single-file monolithic actors — use multi-file architecture

ALWAYS use: