Heap Seance

Heap Seance is an open-source MCP server and CLI toolkit for memory leak investigation in Java applications. It channels commonly used JVM diagnostic tools into a unified, structured workflow, enabling the detection and analysis of retained objects and potential memory leaks. Designed to work in the Claude Code environment but usable via CLI, it's suited for developers, SREs, and performance engineers dealing with JVM memory issues. The toolkit features automated evidence collection, confidence-based reporting, and integration with tools like Eclipse MAT and async-profiler.