Written via the impeccable init flow. Records what future work must not
reinvent: a permanently single-user tool for one person managing their own
money, offline-only with no account, and five product principles including two
the owner added directly — changing an allocation must never destroy history,
and splitting a purchase across posts must stay easy.
Evidence on Hand deliberately records absences: no customers, testimonials,
usage data or integrations exist, and the only real content is the owner's own
budget data, which never leaves their browser. Future surfaces must not
manufacture them.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
