Daily review queue

Spaced-repetition cards drawn from each module's deck (cards/m{NN}.json). Grade each card honestly — the algorithm schedules the next surface based on your answer history, which lives in localStorage.forge.cards.m{NN}.c{KK} per the deck schema.

All decks

Read-only view of every card in every loaded deck. Useful for pre-reading before the spaced-repetition queue surfaces a card, or for verifying that the deck's claim slugs line up with the module's prove-list.

Algorithm: a simplified SM-2 variant. Initial interval seeded by difficulty (easy → 4 days, medium → 2 days, hard → 1 day). Subsequent intervals scale by an ease factor clamped to [1.3, 2.5]; an "Again" grade resets the streak and re-queues the card in 10 min. The full state schema is documented in cards/README.md. Today only the M1 deck (cards/m01.json) ships; M2–M16 decks will surface here automatically as rigor authors them.