CompletionKit is a prompt testing platform that runs as a Rails engine or a standalone app. Run prompts against real datasets, score every output with an LLM judge against criteria you define, track prompt versions, and get AI-generated improvement suggestions grounded in your actual results. Includes a web UI, REST API, and a built-in MCP server with 34 tools.
Required Ruby Version
>= 3.2.0
Authors
Damien Bastin
Versions
- 0.28.11 July 21, 2026 (272 KB)
- 0.28.10 July 21, 2026 (272 KB)
- 0.28.9 July 21, 2026 (272 KB)
- 0.28.8 July 21, 2026 (272 KB)
- 0.28.7 July 21, 2026 (271 KB)
- 0.28.6 July 21, 2026 (271 KB)
