{
  "date": "2026-03-23",
  "candidate": "Optimizer",
  "optimizer_profile": "default",
  "candidate_commit": "144d6a2",
  "lm_eth_before": "999999999999999999998",
  "lm_eth_after": "999999999999999999998",
  "eth_extracted": 0,
  "floor_held": true,
  "verdict": "floor_held",
  "strategies_tested": 1,
  "strategies_total": 1,
  "agent_runs": 0,
  "methodology": "Full 2000-trade floor ratchet oscillation executed via AttackRunner.s.sol forge simulation (not broadcast — forge broadcast incompatible with try/catch recenter reverts). Attack file: onchain/script/backtesting/attacks/floor-ratchet-oscillation.jsonl. 10 oscillation rounds × 200 buy→recenter cycles (5 ETH per buy), with alternating stake/unstake/sell phases at tax rates 0 and 5. TWAP oracle protection (30s stability window, ±50 tick deviation) blocked 2019 of 2022 recenter attempts. Only 3 recenters succeeded — insufficient to drift positions. LM TVL increased from 9.61e21 to 10.79e21 wei (TVL metric including KRK→ETH conversion). Top-level lm_eth_before/lm_eth_after are snapshot-isolated measurements from LmTotalEth.s.sol (ETH-only metric, excludes KRK). The floor ratchet oscillation vector from #630 is defeated by the TWAP oracle + amplitude threshold + 1% pool fee defenses.",
  "attacks": [
    {
      "strategy": "Floor Ratchet Oscillation — full 2000-trade buy → stake → recenter loop with TWAP drift",
      "pattern": "buy → stake → recenter_multi → sell",
      "result": "INCREASED",
      "delta_bps": 1230,
      "insight": "The 2000-trade oscillation variant from #630 is fully defeated. TWAP oracle stability check (±50 tick, 30s window) blocks 99.9% of recenter attempts after buy-driven price moves. The few recenters that succeed do not produce enough repositioning to enable extraction. The 1% Uniswap V3 pool fee on each of the 2000 buy legs (5 ETH × 2000 = 10,000 ETH volume) generates substantial fee income for the LM. Combined with concentrated liquidity slippage on the sell legs, the adversary loses ~12% of capital. The floor ratchet risk flagged in #630 (r=+0.890, 9/34 profitable) does not manifest against the current TWAP-protected Optimizer."
    }
  ]
}