rex 🇺🇦

reference explorer

Sub-second Python symbol search for .venv packages and project source code. Bonus: MCP server for Claude Code.

Install

Global (available everywhere):

uv tool install git+https://github.com/vykhovanets/rex.git
rex index                       # Index .venv packages (~30s once)
rex index -p ./src              # Also index project source

As project dependency:

uv add git+https://github.com/vykhovanets/rex.git
uv run rex index

MCP server for Claude Code:

claude mcp add rex -- \
  uvx --from git+https://github.com/vykhovanets/rex.git rex-mcp serve

CLI

rex find <query>       # Search symbols (unquoted multi-word OK)
rex show <name>        # Full documentation by qualified name
rex members <name>     # List class/module members
rex stats              # Index statistics
rex index              # Rebuild index
rex index -p .         # Rebuild including project source

MCP Tools

Claude Code can use rex too — same speed, no round-trips to the web.

Tool	Description
rex_search	Find symbols by name
rex_show	Get full docs for a symbol
rex_members	List class/module members
rex_index	Rebuild index (supports project_dirs)

License

MIT