LunaPrompts

LunaPrompts is a hiring assessment platform designed specifically for evaluating AI engineering skills. It tests prompt engineering, agent code, RAG systems, SQL, and system design in sandbox environments—moving beyond traditional algorithm puzzles. The platform allows candidates to use AI tools during assessments, grading their ability to craft effective prompts and iterate solutions rather than final answers alone.

The service includes founder-led pilot programs, built-in proctoring, and auto-grading across multiple LLM models. It also offers SkillNote, an open-source skill registry for managing and distributing SKILL.md files across AI coding agents like Claude Code and Cursor, solving truncation and synchronization issues in shared skill libraries.