When do 'When you play a spell' triggers resolve - before or after the spell resolves?

Ruling: 'When you play a spell' triggers resolve after the spell resolves. A spell is considered 'played' only after it has fully resolved.

Sequence:

• Spell is added to the chain
• Targets are declared and costs are paid
• Players can react
• Spell resolves and instructions are executed
• Spell is considered 'played' (triggers resolve at this point)