A LONG-SHORT, single-instrument, short-horizon strategy on DOGEUSDT.BINANCE (USD-M perp, 15m bars) that gates directional breakouts by a genuine NON-PRICE feed: perp OPEN INTEREST from the Binance VISION 'metrics' files (sum_open_interest column, MULTI-YEAR back to ~2020 at 5-min granularity aggregated to 15m — NOT the 30-day-limited futures-data API). The insight (classic four-quadrant OI analysis): a price breakout on RISING open interest is FRESH leveraged money committing to a direction and tends to CONTINUE; a breakout on FALLING OI is existing positions unwinding (short-covering / long-liquidation) — hollow, no follow-through — and is skipped. DOGE is chosen deliberately: it is one of the most leverage-/retail-driven perps, so OI surges are large, frequent, and highly informative for impulse follow-through. This is distinct from every pending/failed item: NOT pure OHLCV (L30 — OI is a separate committed-capital series and is the gate that makes/breaks the trade), NOT the OI-FLUSH REVERSAL that lost -13% on SOL (that FADES OI collapses; this FOLLOWS OI expansions — opposite sign), NOT the OI-momentum WEEKLY BASKET that died no_trades (that was long-only, weekly, multi-name; this is 15m, long-short, single-name and fires often), NOT funding (L13/L28), NOT taker-flow divergence (SolTakerFlow) or positioning-fade (EthRetail) or spot exhaustion (AvaxSpot) — different feed and mechanism. Fills TWO under-represented buckets at once: short_1m_15m horizon (7.9% vs ≥10%) and long_short direction (14.5%). 3 parameters to resist overfit.