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Prefactor Tops Product Hunt on July 28 With 591 Points for Real-Time Agent Evaluation That Can Pause a Running Agent
Prefactor took #1 on Product Hunt's July 28 board with 591 upvotes, pitching itself as the layer that closes the gap between agents passing evals and failing in production. The differentiator over dashboard-only observability is enforcement: scores wire straight into runtime action through the SDK/API — pause a risky run for human approval, enforce a policy, or block a harmful action before it executes. It ships TypeScript and Python SDKs with native integrations for LangChain, Claude, Vercel AI, OpenClaw and LiveKit, and a free tier of 25,000 spans/month.
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