Show HN: Lavern: an open-source multi-agent legal system (Apache 2.0)

Category: infrastructure

Tags: multi-agent, legal-tech, llm-orchestration

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 6)

Lavern is an open-source multi-agent legal system that orchestrates 67 specialized agent prompts through a debate protocol with three-layer verification and human gates. It innovatively combines multi-agent debate, memory via a precedent board, and local/EU/cloud AI providers, targeting the legal domain with a architectural approach rather than a ready-to-use product.

Target audience: backend devs, data engineers, legal tech researchers

Repository: https://github.com/AnttiHero/lavern · TypeScript · Apache-2.0 · 184 stars

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