Codebase-aware exploration and code retrieval using Recursive Language Modeling. Connects to a coderlm-server that indexes the entire project (file tree, symbols, cross-references) and returns EXACT source code — full function implementations, variable lists, callers, line ranges — so you never need to guess, glob, grep, or read large files yourself. Replaces the typical scan-grep-read cycle with precise, index-backed lookups. Use when navigating unfamiliar codebases, finding functionality with nonobvious names, tracing cross-file dependencies, retrieving specific implementations, or when asked to "explore", "understand", or "map out" a codebase. Invoke with /coderlm.