Add memestrategy-hook-eth

[thedocboom]

MemeStrategyHook - Dynamic Fee System

Hook Address: 0x3bA779BAd405D9b68a7A7a86ff6916c806A200CC
Pool: 0x95caa20ff578db4ceec56162bedc21e31adc70ef717661e11d6d1d74e9b2f844

Core Mechanism:

The hook implements a 3-phase dynamic fee system for Uniswap V4 swaps:

Phase 1 (Launch): Fixed 50% fee on all swaps

Simple flat fee during initial trading period
Transitions to Phase 2 automatically after first strategy sale (or manually by owner)

Phase 2 (Dynamic): 10-90% variable fees with spike system - We are already here. No rollback.

• Base Fee: 10% when market is calm - capped. Can be reduced lower only, depending on market conditions.
• Spike Triggers: Large sells (2-50 ETH) trigger fee spikes up to 90%

Fee Spike Ranges & Conditions
Spikes are triggered only by the Strategy contract calling triggerFeeSpike(uint256 saleAmount)
Triggered when strategy executes a sell of accumulated tokens
The saleAmount parameter is the ETH value of the sale

Example 1: Strategy buys 1 ETH of meme coin > holds until 1.2 ETH value of meme coin purchased > Sells for 1.2 ETH > conducts a 1.2ETH buyback of $MEMS and No spike Trigger.

Example 2: Strategy buys 3 ETH of meme coin > holds until 5 ETH value of meme coin purchased > Sells for 5 ETH > conducts a 5ETH buyback of $MEMS with a Tier 1 spike - 15% sell Fee with a 4 hr decay.

10-Tier Spike System: Triggered by Buybacks of $MEMS

• Tier 0: ≥2 ETH → 12.5% fee, 1hr decay
• Tier 1: ≥5 ETH → 15% fee, 4hr decay
• Tier 2: ≥10 ETH → 20% fee, 5hr decay
• Tier 3: ≥15 ETH → 25% fee, 6hr decay
• Tier 4: ≥20 ETH → 40% fee, 7hr decay
• Tier 5: ≥25 ETH → 50% fee, 8hr decay
• Tier 6: ≥30 ETH → 60% fee, 9hr decay
• Tier 7: ≥35 ETH → 70% fee, 10hr decay
• Tier 8: ≥40 ETH → 80% fee, 11hr decay
• Tier 9: ≥50 ETH → 90% fee, 12hr decay

Linear Decay: Fees decay back to 10% over 1-12 hours (tier-dependent)
Asymmetric Fees: Buys pay only base + 10% of spike increase (protecting buyers)
Example: If sell fee = 90%, buy fee = ~18%

Fee Collection:
Hooks into beforeSwap (for buys: ETH→MEMS) and afterSwap (for sells: MEMS→ETH)
Takes fees directly from PoolManager using the take() function
Splits revenue: 80% to strategy (buybacks/burns), 20% to treasury
Deferred settlement pattern (accumulate during swaps, flush later)

Anti-Snipe Protection:
Blocks all swaps until tradingEnabled = true in strategy contract
Exempts strategy itself and whitelisted modules from fees

Key Feature: Creates sell pressure dampening depending on the size of buybacks and burn of $MEMS, while maintaining favourable buy conditions (low fees encourage buying during volatility). Fee's on such events decay linearly.

Third party Audit by ScaleBit: https://www.mems.wtf/meme-strategy-audit-report-2025-10-17.pdf

[thedocboom]

Hey guys we would appreciate it if you can look at this urgently.

The success of our project depends on this.

Our community is waiting.

Please deal with it ASAP.