An offer with no upper bound on capital, rate or duration can be constructed and then overflow downstream. Capping all three at construction turns those overflows into a typed error at the boundary instead of a panic in the middle of a computation. The bounds are structural sanity limits chosen to leave several orders of magnitude of headroom, not domain figures. In particular MAX_ANNUAL_NOMINAL_RATE is not the taux d'usure, which applies to the TAEG, is published quarterly by the Banque de France, and belongs in a separate business rule with its own source and date. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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