Quick Reference

Event	Action	Key rule
`charge.refunded`	Revoke credits proportional to refund delta	G2 — `previous_attributes.amount_refunded`
`charge.dispute.created`	Set user `past_due` + store checkpoint	G1 + G9
`charge.dispute.closed`	`won` / `warning_closed` / `prevented` -> restore; `lost` -> no-op (charge.refunded handles); else -> no-op	G5 + G7

Refund source priority	When to use
`event.data.previous_attributes.amount_refunded` (G2)	Primary — always prefer
`charge.refunds.data` (sorted by created desc)	Fallback when `previous_attributes` absent
`stripe.refunds.list({charge, limit:1})`	Last resort when embedded missing
`charge.amount_refunded` alone	NEVER (cumulative, not per-event)

When to Use This Skill

Use when implementing any handler that revokes credits or mutates a paid-status column in response to Stripe refund or dispute events.