Fast, precise codebase exploration via universal-ctags. A pure skill plugin that teaches AI coding agents to search symbols, browse outlines, and retrieve exact code ranges — instead of reading whole files. No MCP server, no runtime dependencies beyond the ctags binary.
- Index — runs
ctagsto generate a standard.ctagstags file - Search — grep the tags file by symbol name, kind, or file
- Retrieve — read only the exact lines of a symbol using line ranges from the index
- Outline — get file or project-level symbol overviews from the index
The agent decides autonomously when to index, re-index, or search — no manual commands needed.
Install universal-ctags (must say "Universal Ctags" in ctags --version):
# macOS
brew install universal-ctags
# Ubuntu / Debian
apt install universal-ctagsclaude plugin marketplace add https://github.com/kcem/code-index.git
claude plugin install code-index@code-indexcopilot plugin install kcem/code-indexpi install git:github.com/kcem/code-indexOr via npm: pi install npm:pi-code-index
Copy skills/code-indexing/SKILL.md into your agent's skills directory. Works with any agent supporting the Agent Skills format.
All 100+ languages supported by universal-ctags — Python, TypeScript, JavaScript, Go, Rust, Java, C/C++, Ruby, PHP, and many more. No configuration needed — languages are detected automatically.
MIT
100% free, 100% open source, 100% powered by coffee. If it saved your tokens, a coffee keeps the next plugin brewing.