kite/.planning/phases/08-stack-upgrade-backend-decomposition/08-06-SUMMARY.md

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