Promptfoo Turns LLM Prompt Testing into YAML Unit Tests

Open-source tool Promptfoo (26.3k stars) turns prompt, agent, and RAG evaluation into repo-committable unit tests declared in YAML, enabling consistent re-running of test cases across model providers after prompt changes.

2026-10-22 ~ 2026-10-22 · 2 related posts

• Test LLM prompts like unit tests: Promptfoo turns evals into reviewable YAML — KhuyenTran16 · 2026-10-22
• Promptfoo: Run LLM Prompt Tests Like Unit Tests in YAML with CI/CD — KhuyenTran16 · 2026-10-22