Generate or query compact symbol indexes with Ctags or Tree-sitter to locate declarations in large repositories.
Install
npx skills add alivirgo/Major-AI-Skills --skill symbol-declaration-indexnpx skills add alivirgo/Major-AI-Skills --skill symbol-declaration-index -a claude-code -gnpx skills add alivirgo/Major-AI-Skills --skill symbol-declaration-index -a codex -ggemini skills install https://github.com/alivirgo/Major-AI-Skills.git --path skills/symbol-declaration-indexgh skill install alivirgo/Major-AI-Skills symbol-declaration-indexgit clone --depth 1 https://github.com/alivirgo/Major-AI-Skills /tmp/alivirgo__Major-AI-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alivirgo__Major-AI-Skills/skills/symbol-declaration-index ~/.claude/skills/symbol-declaration-index # Claude Code
cp -R /tmp/alivirgo__Major-AI-Skills/skills/symbol-declaration-index ~/.agents/skills/symbol-declaration-index # Codex, Cursor, Gemini CLI, Copilot, OpenCode