A: 1. Retention. There's no retention period and no expiry on saved prompts. Your Library isn't time-limited on any plan, including lifetime. Prompts stay until you delete them or ask us to delete your account. We have no inactivity policy, no auto-purge, no "use it or lose it" rule, so an account sitting untouched for a year comes back with everything in place. The only ways a prompt leaves your Library: you delete it, or you email [email protected] to request account deletion (which wipes saved prompts, history, and account records within 30 days, per our Privacy Policy)

2. Instructions. Instructions are standing rules, not per-prompt picks. Each one has a title, a detail (up to 1,000 characters), and an on/off toggle. Every instruction that's toggled on is applied automatically to every generation, in the Generator, the Optimizer, and the Tester. You don't select them each time. The composer shows an Instructions button with a badge counting how many are currently active, and you can toggle them right there without leaving the composer, so switching context is one click.

There's no cap on how many you save, and no cap on how many are active at once. It isn't tier-limited either, same on Free and on every lifetime tier. Practical advice from us: keep each rule short and single-purpose ("Answer first", "No em-dashes", "Don't sound like AI") instead of one long paragraph. Small rules are much easier to toggle on and off per project, and the model follows them more reliably.

The Instructions page ships with presets you can use as-is or edit, including No em-dashes, Don't sound like AI, Answer first, Skip the flattery, and My company / My role for standing context. Full detail here: https://docs.promptbuilder.cc/features/instructions