Worked on the espressif/llvm-project repository to enhance the developer experience in clangd by integrating documentation directly into code completion results. Focused on C++ and compiler internals, the work involved implementing an index-based lookup mechanism that attaches relevant documentation to completion candidates, including those not present in the main file. This approach addressed previous stability issues and ensured that developers receive richer contextual information during code completion. By consolidating documentation delivery within clangd’s completion pipeline, the changes improved accuracy and reduced cognitive load, streamlining the development workflow for users working with C++ in modern integrated development environments.