LLMTape

https://github.com/amitleshed/LLMTape

It wraps any LLM client with a tiny DSL. In test environement, it records “tapes” (YAML fixtures of real LLM calls) and replays them on subsequent runs; when a tape is stale, it re-records to keep tests current. Production stays clean and safe, while CI avoids hammering the API every run--yielding deterministic tests, faster pipelines, and fewer tokens spent.