---
type: User Story
title: "US-001: Accumulate invisibility time and unlock stealth"
description: Reward sustained use of directly consumed invisibility potions with the stealth ability.
status: backlog
---

# US-001: Accumulate invisibility time and unlock stealth

As a **player**, I want my qualifying invisibility time to accumulate so that sustained potion use eventually unlocks stealth.

## Acceptance criteria

- [ ] Only time spent online under an invisibility effect produced by a potion the player directly drank contributes to progression.
- [ ] Invisibility received from splash potions, lingering potions, tipped arrows, commands, plugins, or other sources does not contribute.
- [ ] Qualifying time stops when the effect ends, is removed, is replaced by a non-qualifying source, the player disconnects, or the plugin disables.
- [ ] Refreshed or overlapping qualifying effects never count elapsed time more than once.
- [ ] Qualifying time accumulates across effects, sessions, and server restarts.
- [ ] The ability unlocks when accumulated qualifying time reaches eight hours by default.
- [ ] Reaching the threshold grants the unlock exactly once without discarding excess elapsed time.
- [ ] When an online player unlocks stealth, they receive both a full-screen title and a chat message explaining the ability.
- [ ] Progress and unlock ownership are associated with the player's UUID rather than their current name.

## Related

- [Rejoin without a visible identity](us-002-rejoin-without-visible-identity.md)
- [Check personal stealth progress](us-003-check-personal-progress.md)
- [Configure and persist stealth progression](us-005-configure-and-persist-progression.md)