5. Risk Explainer

Raw signals are meaningless to a first-time Robinhood user:

Oracle stale 340s, depth 0.4x order size

The Risk Explainer converts signals into a plain-language explanation of why a trade was flagged.

Paraphrasing signals into human sentences is a light, latency-sensitive task, so it runs on claude-haiku-4-5 with prompt caching.