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Show HN: Reflex Engine SDK – local action validation with replayable artifacts

mikecaminojr Saturday, March 14, 2026

Built a small technical preview called Reflex Engine SDK. It’s a local validation layer for systems that want to check a proposed action or telemetry event before execution. The core loop is: input comes in, local policy rules are evaluated, Reflex returns ALLOW or DENY, and it writes a replayable JSON artifact showing what happened. The current repo/demo is intentionally small: one allowed event, one denied event, artifact files created locally, and one artifact opened for inspection. It’s not a full autonomy stack or fleet platform — just a narrower validation component that sits between a planner/controller/local system and execution.

Summary
The Reflex Engine SDK is a software development kit that allows developers to integrate real-time, physics-based simulations and animations into their applications. It provides a flexible and cross-platform solution for incorporating dynamic 3D elements and interactive virtual environments.
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Summary
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