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promptfoo

Declarative evals and red-teaming for prompts, agents, and RAG that run in CI, so a behavior regression fails a check instead of reaching users. Red-team module probes prompt injection, jailbreaks, PII leaks, and tool misuse. MIT. Note: OpenAI announced it is acquiring promptfoo (March 2026), so weigh the long-term open-source trajectory.

Alternatives

1 workflow use promptfoo