Search across archived Copilot chat sessions (VS Code + CLI) using the copilot-session-tools CLI. Use when the user says "search my chats", "find in chat history", "what did we discuss about X", "look up past sessions", "scan chats", or references a session-state path or session GUID. Also covers exporting sessions as markdown or HTML and launching the web viewer.
Install
npx skills add Arithmomaniac/copilot-session-tools --skill search-copilot-chatsnpx skills add Arithmomaniac/copilot-session-tools --skill search-copilot-chats -a claude-code -gnpx skills add Arithmomaniac/copilot-session-tools --skill search-copilot-chats -a codex -ggemini skills install https://github.com/Arithmomaniac/copilot-session-tools.git --path .claude/skills/search-copilot-chatsgh skill install Arithmomaniac/copilot-session-tools search-copilot-chatsgit clone --depth 1 https://github.com/Arithmomaniac/copilot-session-tools /tmp/Arithmomaniac__copilot-session-tools
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/Arithmomaniac__copilot-session-tools/.claude/skills/search-copilot-chats ~/.claude/skills/search-copilot-chats # Claude Code
cp -R /tmp/Arithmomaniac__copilot-session-tools/.claude/skills/search-copilot-chats ~/.agents/skills/search-copilot-chats # Codex, Cursor, Gemini CLI, Copilot, OpenCode