User Story Writer (Agile)

Write user story following Agile best practices:

**Epic**: [EPIC NAME]

**User Story**:
As a [USER ROLE]
I want to [ACTION/FEATURE]
So that [BENEFIT/VALUE]

**Acceptance Criteria** (Given-When-Then):
1. Given [CONTEXT], When [ACTION], Then [EXPECTED RESULT]
2. Given [CONTEXT], When [ACTION], Then [EXPECTED RESULT]
3. [ADD MORE AS NEEDED]

**Technical Notes**:
- Dependencies: [SYSTEMS/APIS]
- Edge Cases: [SCENARIOS]
- Performance: [REQUIREMENTS]

**Definition of Done**:
- [ ] Code complete & reviewed
- [ ] Unit tests (>80% coverage)
- [ ] Integration tests pass
- [ ] Documentation updated
- [ ] Acceptance criteria validated

**Story Points**: [ESTIMATE]
**Priority**: [HIGH/MEDIUM/LOW]