24 lines
605 B
Markdown
24 lines
605 B
Markdown
# Membership Tier Extension Spec
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## Purpose
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Define optional supply-based tiered membership pricing without breaking v1 flows.
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## Tier Model
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1. Tier boundaries based on total minted memberships.
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2. Each tier defines currency and amount_atomic.
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3. Price auto-selects by minted supply at quote time.
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## Compatibility
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1. Existing quote/confirm flow remains unchanged.
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2. Tier metadata added to quote response (`tier_id`, `tier_label`).
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3. Receipts persist tier metadata for audit.
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## Guardrails
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1. Floor policy still applies.
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2. Tier transitions event-emitted.
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3. Quotes lock tier price until expiry.
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