# Plan 08-06 Summary — Auth API Decomposition

**Status:** Complete  
**Requirements:** CODE-03, CODE-08, CR-01, CR-02, CR-03  
**Date:** 2026-06-12

## What Was Done

- Created `backend/api/auth/` package: `shared.py`, `tokens.py`, `totp.py`, `password.py`, `__init__.py`
- `limiter` defined in `shared.py`, re-exported from `__init__.py` — `from api.auth import limiter` unchanged
- CR-01 (`change_password`), CR-02 (`enable_totp`), CR-03 (`disable_totp`) — `revoke_all_refresh_tokens(skip_token_hash=skip_hash)` preserved verbatim
- ES256, JTI, fgp token hardening preserved verbatim in `tokens.py`
- Deleted `backend/api/auth.py` monolith; zero test files modified

## Test Results

- `tests/test_auth.py` CR tests: PASSED (all 3)
- Auth + rate-limit + TOTP + replay + headers: 52 passed
- `app.state.limiter is api.auth.limiter` identity: confirmed
- Full suite: 405 passed
