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 53 tools.

Required Ruby Version

>= 3.2.0

Authors

Damien Bastin

Versions

  1. 0.29.1

    1. source

      1. 0.29.1 source October 14, 2026 (300 KB)
  2. 0.29.0

    1. source

      1. 0.29.0 source October 14, 2026 (297 KB)
  3. 0.28.46

    1. source

      1. 0.28.46 source October 14, 2026 (289 KB)
  4. 0.28.45

    1. source

      1. 0.28.45 source October 14, 2026 (288 KB)
  5. 0.28.44

    1. source

      1. 0.28.44 source October 13, 2026 (285 KB)
Show all versions (155 total)

Pushed by

homemade

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