Spellcasting Mechanics (D&D kit)

STEP 0 — KIT GUARD. If the scene-context KIT block is not dnd5e, close this skill and resolve magic through the world's own system.

When a player casts a spell: spawn the spell-caster agent for details, check slots, resolve.

• Attack spells: d20 + spell attack bonus vs AC.
• Save spells: target rolls save vs spell save DC.
• Utility: apply effect.