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
>= 3.1.0
Authors
Damien Bastin
Versions
- 0.26.1 July 09, 2026 (265 KB)
- 0.26.0 July 09, 2026 (265 KB)
- 0.25.3 July 07, 2026 (263 KB)
- 0.25.2 July 06, 2026 (263 KB)
- 0.25.1 July 06, 2026 (263 KB)
- 0.12.2 June 08, 2026 (240 KB)
