2026-06-105 min read
Both voice iterations failed the Cash ISA test. I shipped the original.
Two iterations of the uk-calculator-voice skill (analytical v2.0.0 and warmth-corrected v2.1.0) both failed the same blind A/B on Cash ISA drafts. The original v1.0.0 won both rounds. The ship was v1.1.0: a reset to the passing baseline with the recovery path formalised, not a third iteration attempt.
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