Why Tier-2.5

After Tier-2 (ADR 0030), the next sleeves had to reuse Invest AI's ranking surface — not invent a parallel signal bus.

ADR 0031 ships five enabled strategies (sortOrder 21–25):

Slug	Idea
composite-ai-momentum	Meta-rank on mom / residual / 52w-high / low vol / persistence
ai-52week-high-momentum	AI-ranked name closest to 52-week high
ai-fundamental-momentum-proxy	Snapshot persistence + confidence improvement as revision proxy
sector-dual-momentum	Best sector ETF vs SHY
gtaa-triad-rotation	SPY/IWS/GLD/PDBC winners + bond safety basket

Inventory hits twenty-five enabled sleeves once ensureStrategies runs. Broader candidate set means slower evidence maturity per sleeve — expected, not a bug.

Honesty

Invest AI supplies the ranked universe. InvestSim applies fixed post-processing rules. "AI" in the slug is a proxy label, not a live LLM order brain.

Lab polish (trades UI, SEO, Slack, broker cron, promote) sits on top of this inventory; it does not replace ADR 0031.

Takeaway

Grow the sleeve table when rules reuse shared ranks. Do not grow a second research feed to feel productive.

Further reading: InvestSim ADR 0031 · feedback loop system design 2026-08-05.