Twelve questions across four Robinhood Chain adoption paths — stock-token application, collateral/lending venue, index/basket product, and agent-settlement automation — produce an A-F grade, per-path scores, and a routed workflow list into the reconciliation, regime-mapping, valuation-lint, collateral-haircut, and finality/redemption verification workflows. Robinhood Chain stock tokens are tokenized debt securities, not the MiCA/GENIUS crypto-asset regime that applies to Tempo or Arc — this diagnostic asks path-specific questions rather than reusing that regulatory framing. Client-side. Deterministic. Zero PII.