Agently is a Python GenAI application development framework focused on event-driven agent interactions and a chained-calls programming model for structured data exchange with LLMs. At 1,541 stars it positions between low-level LLM wrappers and heavy orchestration frameworks like LangGraph, offering a lightweight alternative for multi-step agent workflows with built-in event bus semantics. The chained syntax pattern reduces boilerplate compared to callback-heavy alternatives.