Social Gate
2h mentions ≥ 8, heat score Top 10, and 1h velocity ≥ 2× average per-hour in 4h.
Market Gate
Any 2 of: volume spike, 1h volatility, 24h breakout, range expansion, funding extreme.
Freshness
Reject if peak was >4h ago and latest 1h mentions decayed below 50% of peak.
Direction
Keyword polarity must agree with 1h candle direction. Conflict = no signal.