Anthropic silently downgraded cache TTL from 1h → 5M on March 6th

Cache TTL silently regressed from 1h to 5m around early March 2026, causing quota and cost inflation · Issue #46829 · anthropics/claude-code
Cache TTL appears to have silently regressed from 1h to 5m around early March 2026, causing significant quota and cost inflation Summary Analysis of raw Claude Code session JSONL files spanning Jan...
