The 30-second cache_creation/total ratio: a portable cache-health check for Claude Code subscribers
If your claude /usage --json cache_creation_input_tokens / total_input_tokens ratio sits above 0.20 across long sessions, the Issue #46829 and Issue #46917 cache regression is hitting your subscription. If it sits below 0.10, the cache is doing its j...
yurukusa.hashnode.dev4 min read