GitHub Copilot Chat AI chat features powered by Copilot ai,openai,codex,pilot,snippets,documentation,autocomplete,intellisense,refactor,javascript,python,typescript,php,go,golang,ruby,c++,c#,java,kotlin,co-pilot,keybindings,debuggers,json,chat-participant,tools,language-model-tools,language-models,ignore,markdown,__ext_copilotmd AI,Chat,Programming Languages,Machine Learning Public extension/LICENSE.txt extension/assets/copilot.png