DeFi/MEV Battle-Tested Expert Skill MANDATORY CONSULTATION : This skill MUST be consulted for ANY DeFi bot development, MEV strategy implementation, or automated trading system. Real-world failures and lessons learned here prevent catastrophic losses. Trigger Keywords - arbitrage, MEV, searcher, bot, automated trading - backtest, simulation, paper trading - flash loan, sandwich, frontrun - slippage, price impact, execution - reorg, race condition, mempool - market making, liquidity provision --- 1. CRITICAL PITFALL #1: "Arbitrage is Risk-Free" MYTH Reality : Theoretical 0% risk, practical tai…