# Sparc Specification 21 Authentication

> Sub-skill of sparc-specification: 2.1 Authentication (+1).

- Skill: `vamseeachanta/sparc-specification-21-authentication` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/sparc-specification-21-authentication`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/sparc-specification-21-authentication/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/sparc-specification-21-authentication

---


# 2.1 Authentication (+1)

## 2.1 Authentication


- FR-2.1.1: Support email/password login
- FR-2.1.2: Implement OAuth2 providers
- FR-2.1.3: Two-factor authentication

## 2.2 Authorization


- FR-2.2.1: Role-based permissions
- FR-2.2.2: Resource-level access control
- FR-2.2.3: API key management