C++ Code Intelligence for GitHub Copilot CLI (Preview)

Microsoft has released the C++ Language Server for GitHub CopilotCLI in Preview, extending the semantic C++ code intelligence previously available in Visual Studio and VS Code to the command-line interface. The language server uses the same IntelliSense engine to provide precise symbol definitions, references, call hierarchies, and type information — enabling more accurate results than grep-based search. It is distributed as an npm package, runs on Windows, Linux, and macOS, and requires a compile_commands.json file. CMake projects are supported with automation tooling; MSBuild support is planned. An active GitHub CopilotCLI subscription is required.