title: Google OAuth OOB Flow Deprecated

insight: The original OAuth implementation using out-of-band (OOB) flow was deprecated by Google, causing failures even authentication when app configuration was correct

reasoning_chain: Initial auth attempt returned 401 invalid_client

reasoning_chain: Genesis initially suspected missing test user configuration

reasoning_chain: Kinan clarified app is internal type requiring no verification

reasoning_chain: Auth still failed after test user suggestion

reasoning_chain: Genesis realized OOB flow was deprecated by Google - this was the actual blocker

source_context: Genesis: 'The issue is that Google deprecated the OOB (out-of-band) flow I used. Let me fix the script to use the proper localhost redirect.'


title: Switch from OOB to Localhost Redirect OAuth

insight: Replace deprecated Google OOB OAuth flow with proper localhost redirect URI pattern to restore authentication functionality

reasoning_chain: Google deprecated OOB (out-of-band) authentication flow

reasoning_chain: OOB flow causing 401 errors regardless of app configuration

reasoning_chain: Decision: migrate to localhost redirect URI pattern

reasoning_chain: This requires updating the OAuth client configuration

source_context: Genesis explaining the fix: 'Let me fix the script to use the proper localhost redirect'


title: OAuth Debugging Sequence

insight: Multi-step diagnosis of auth failure: test user issue → internal app clarification → OOB deprecation discovery

reasoning_chain: Step 1: 401 error received on OAuth attempt

reasoning_chain: Step 2: Genesis diagnosed as missing test user in Testing mode

reasoning_chain: Step 3: Kinan clarified app is internal type (not Testing mode)

reasoning_chain: Step 4: Still failed - ruled out test user theory

reasoning_chain: Step 5: Root cause discovered - Google deprecated OOB flow entirely

source_context: Dialogue progression from test user theory to OOB deprecation realization