# IOS Nfr

> Non-functional requirements checklist for iOS features

- Skill: `majiayu000/ios-nfr` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/ios-nfr`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/ios-nfr/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/ios-nfr

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## Purpose

Ensure iOS stories address NFRs. Complement security policies and stack conventions.

## iOS-specific concerns (always consider)

1. **App Store readiness** — permission purpose strings, entitlement/capability changes documented
2. **Battery** — no high-frequency polling; efficient image handling
3. **Offline correctness** — local persistence as source of truth; migration plan for schema changes; bounded storage growth
4. **Accessibility** — accessible labels on controls; dynamic type doesn't break layouts; adequate tap targets
5. **Performance** — no main-thread blocking; smooth scrolling; network calls don't block UI

For standard concerns, output format, and flexibility rules, see `/shared-nfr`.

### iOS-specific standard concern additions

- Reliability: failure states handled gracefully
- Security: appropriate storage for sensitive values (keychain when needed)
- Observability: critical transitions logged with stable identifiers