Use cases

XERJ: autoindex + MCP so coding agents search folders without grep waste

XERJ is an Apache-2.0 Rust single-binary AI-native search engine: `xerj autoindex` turns code/docs/logs/PDFs into ES-compatible indices; `xerj init` registers MCP + a short skill for Claude Code/Cursor; agents get passage search, hybrid retrieval, and namespaced memory instead of dumping whole files—trending hard on GitHub (~7k stars) with agent-oriented llms.txt.