# itpp-infrastructure — CHANGELOG

## 2026-08-06 — Fallback Chain Overhaul & Two-Key Strategy

- **Root cause:** Aug 5 admin-ai budget cap + 4 dead fallback legs = $45 Anthropic burn in 10 hours
- Rotated all 5 fallback provider keys (new keys for deepseek, google, xai, anthropic, openai)
- Added F5: gpt-4.1-nano via OpenAI direct (independent infrastructure)
- Fixed F3: grok-4.6 → grok-4.5 (grok-4.6 never existed — LiteLLM catalog ghost)
- Documented two-key strategy: operational keys (admin-ai only) vs fallback keys (direct, daily-capped)
- Added to operational chain: claude-haiku-4-5 (lightweight), grok-4.5 (auditor 2), deepseek-v4-flash (batch)
- Synced Anita profile with identical fallback chain + provider keys
- Admin-ai budget raised: $20 → $30/day
- Updated: model-chain.md, operational-models.md

## 2026-07-16 — Audit Remediation

- Created CHANGELOG.md (missing per project documentation standard)
- Project directory: `/root/projects/itpp-infrastructure`