Cycle-Aware Debugger for Cyclic Agent Graphs Where Standard Linear Tracers Collapse Loops Into Mush
LangGraph and similar cyclic agent frameworks let agents loop, branch, and revisit nodes... but standard observability (LangSmith, Braintrust trace timelines) was built for linear chains and renders cycles as either repeated identical-looking spans or one collapsed blob. Builders need a debugger that visualizes the GRAPH state at each iteration, diffs what changed between cycle hops, and lets you replay from any node with input mutations to figure out why a loop didn't converge.
Don't build another logger. Build a Chrome-DevTools-style 'pause at node, inspect state, mutate inputs, resume' UX over the framework's actual graph topology. The killer feature is replay-with-edits, not prettier traces.
landscape (3 existing solutions)
Linear-chain observability is mature, cyclic-graph observability is nonexistent. As agent architectures shift from straight chains to LangGraph/AutoGen-style loops, this gap is widening monthly.