Replay – Audit silent prompt cache misses in AI agent transcripts

Show HN: Replay – Audit silent prompt cache misses in AI agent transcripts

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I built Replay because AI agent bills spike without a single warning or error in your logs when a prompt cache breaks. Whether your team runs Claude Code, Cursor, or Aider, the provider just silently re-bills your entire conversation history at cold-write prices instead of cached read prices.Replay is a zero-telemetry, zero-dependency local Go CLI that forensically reads your on-disk log transcripts, replays them against reverse-engineered provider caching state-machines, and names the exact turn the cache broke, the cause, and the exact token leakage.Repo: https://github.com/RedRobotKK/ReplayCore Subcommands (What it actually does):- `replay` : Computes total avoidable re-billed cost across

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Website: replay.doctor