Agent Visualiser is a developer-focused visualization tool that maps the internal operations of AI agents into intuitive graphical flows. It hooks into an agent’s runtime, capturing every prompt, LLM call, decision node, action execution, and memory lookup. Users can view these steps in an interactive graph, expand nodes to inspect parameters and responses, and trace back the logic path that led to each outcome. The tool supports LangChain agents out of the box, but can be adapted for other frameworks via simple adapters. By providing real-time insights and detailed step breakdowns, Agent Visualiser accelerates debugging, performance tuning, and knowledge sharing across development teams.