During January 2025, Bevin Hansson enhanced the code completion experience in the espressif/llvm-project repository by integrating documentation into clangd’s completion results. Using C++ and leveraging knowledge of compiler internals and IDE development, Bevin implemented an index-based lookup mechanism that attaches relevant documentation to code completions, including those not present in the main file. This approach addressed previous stability issues and ensured that developers receive richer, context-aware suggestions during coding. The work consolidated documentation delivery within clangd’s completion pipeline, reducing the time required for developers to access context and improving the overall usability of code completion features.