Add Staking Tier Discount on Fees #36
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Subham2804
commented
Sep 4, 2025
markonmars
reviewed
Sep 11, 2025
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Nice work! That was a much heavier lift than we thought but in general looks really good.
I think we need to add some more test coverage around modifying fees while a user is in a position, and the position modification in general, so that we have more confidence that there are no side effects from the changes.
markonmars
approved these changes
Sep 22, 2025
piobab
approved these changes
Sep 30, 2025
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Overview
Implements staking-based fee discounts for Mars Credit Manager users based on their MARS token staking tier.
Key Features
8-tier system: 0% to 80% fee discounts based on MARS staked (10k to 1.5M+ tokens)
Applies to: Swap fees and perpetual trading fees
Integration: Queries DAO staking contract for user voting power
Implementation
New staking.rs module with StakingTierManager
Updated swap.rs and perp.rs to apply discounts
New query endpoints for tier information
Benefits
Incentivizes long-term MARS staking
Configurable tier thresholds and discounts
No breaking changes to existing functionality