A decision brief is a snapshot of your judgement on one particular day — the options, the trade-offs, the assumption the whole thing rested on. Come back in three months and the assumption has quietly moved, and you no longer remember which one it was. Chorusse Memory is the layer that keeps it.
Keep what you decided and — the part everyone loses — what you were assuming when you decided it, in a form you'll actually be able to read later.
Bring the right prior decision back at the moment the same question comes round again, without you having to remember that it exists.
Check the call against what actually happened. Over time that's the only honest way to learn whether your judgement is improving.
This page exists so you know where Chorusse is going, not to take your money. There's no pricing here yet and no waitlist machinery. If it sounds like something you'd use, say so and I'll tell you when it's real — that feedback genuinely shapes what gets built first.