apache/burr

Based on the README, here's a technical summary: Burr models applications as explicit state machines with declarative action functions that read/write typed state, offering fine-grained dependency tracking and deterministic replay capabilities. It includes a real-time telemetry UI for inspecting execution traces and pluggable persisters for state serialization, while remaining framework-agnostic and agentless—letting you compose any LLM, API, or custom logic without vendor lock-in.

1,946 stars. Actively maintained with 31 commits in the last 30 days.