DOE OSTI · code-176429
An Open-source Llm Enhanced-tool Specialized In Helping Moose Related Problems And Tasks
Abstract
MOOSEenger is an open-source, terminal-first chat application for the MOOSE ecosystem that couples specialized parsing of MOOSE documentation and “.i” input files with retrieval-augmented generation to deliver grounded answers about multiphysics modeling and workflows. It includes dedicated readers for MOOSE-style HTML and a pyhit-based parser that uses the MOOSE syntax tree to preserve block structure and attach retrieval metadata. A data-ingestion pipeline performs semantic chunking into atomic facts and stores them hierarchically in a local Chroma vector database that maintains parent–child relationships across documents; the system can ingest directories, individual files, and single-page web content, and it provides CRUD operations (insert, update, delete) to manage the corpus. At query time, relevant chunks are embedded, retrieved, and fused into the model context, with interactive features such as token streaming, persistent chat history, and dynamic RAG (retrieval triggered by user input or intermediate model output). Deployment is flexible: MOOSEenger runs with local Ollama models or remote Hugging Face/OpenAI backends—typically coordinating generation, lightweight tagging/summarization, and embeddings across three models—and it also supports a server mode and integration with the VS Code Continue interface.
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Li, Mengnan [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Prince, Zachary [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Schwen, Daniel [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Icenhour, Casey [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Giudicelli, Guillaume [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], German, Peter [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Behne, Patrick [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Hansel, Joshua [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], DeChant, Corey [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Kyriakopoulos, Vasileios [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Stogner, Roy [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Lindsay, Alexander [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Permann, Cody [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Biggs, Brandon [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Cecile, Lise [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Charlot, Madeleine [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Habour, Logan [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Miller, Jason [Idaho National Laboratory (INL), Idaho Falls, ID (United States)]. 2025-11-25. An Open-source Llm Enhanced-tool Specialized In Helping Moose Related Problems And Tasks. https://doi.org/10.11578/dc.20260224.2
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