## Problem
(what user pain or business need does this address?)

## Solution
(high-level approach)

## Users
(who is this for?)

## Success metrics
- (measurable)
- (measurable)

## Out of scope
- (explicit non-goals)

## Linked plans
_(populated as plans are created)_

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_Managed by gh-pms. PRDs are top-level — they have plans as children, plans have features as children._