reactive-agents-ts

A composable framework for building reliable LLM agents on a harness you fully control. The same code runs the agentic loop on every model tier, local 4B to frontier with tool-call healing, verification, and durable crash-resume, on a typed 12-phase engine where every step emits an event you can hook into. Effect-TS, MCP-native, MIT. Maintained by tylerjrbuell on GitHub, where it has earned 21 stars from the community.

It's actively developed around agent-framework, agent-observability, agent-orchestration, and is a solid reference for anyone building with these tools.