RTK - Rust Token Killer (Codex CLI) #

Usage: Token-optimized CLI proxy for shell commands.

Rule #

Always run shell commands through rtk, but remember that rtk is a project binary provided by devenv.

If DEVENV_ROOT is defined, the devenv environment is active and rtk is available directly:

rtk git status

If DEVENV_ROOT is not defined, wrap commands with devenv shell so rtk is available:

devenv shell rtk git status

The same devenv rule applies to other repo-provided binaries such as tang, dagger, docker-buildx, and docker-compose.

Meta Commands #

rtk gain            # Token savings analytics
rtk gain --history  # Recent command savings history
rtk proxy <cmd>     # Run raw command without filtering

Verification #

# Active devenv
rtk --version
rtk gain
which rtk

# Outside devenv
devenv shell rtk --version
devenv shell rtk gain
devenv shell which rtk