Hyperliquid trader skill score. POST {user}. Returns derived metrics: skill_score (0-100), classification (sharp/neutral/retail), liquidation_count + rate, funding_paid_per_volume, profit_factor, sample_size_trades. Wraps Pinax /v1/hyperliquid/users with compute the upstream doesn't provide. For trading bots vetting copy-trade signals or sizing-the-room before entering a perp position.