When a production run fails or burns cost, Lieva records the trace, pinpoints the broken step, replays the fix, and turns the incident into a regression eval.
Forks run locally. Your keys never leave your env.
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We are building the forensic layer for the agentic era. Founding members get direct engineering support and shape the replay-engine roadmap.
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FAQ
No. Forks and replays run locally in your own environment — your provider keys never leave your machine. Lieva works on the trace you import.
TypeScript SDK first, Python next: OpenAI, Anthropic, the Vercel AI SDK, LangChain / LangGraph, Mastra, and Trigger.dev / Inngest.
Observability shows you the trace. Lieva turns a bad run into a fixed replay and a regression eval — it is the post-incident repair loop, not another dashboard.
Guaranteed early access, a live 1:1 session where we repair one of your real failed runs with you, your $99 credited to month one, 40% off the Founder plan locked for life, and a private founder channel with roadmap influence.