RTK (Rust Token Killer)
RTK is an independent project under the Apache 2.0 license, created and maintained by Patrick Szymkowiak and contributors. It is not part of Maestria.
What It Is
Section titled “What It Is”RTK (Rust Token Killer) is a CLI proxy that sits between your AI coding agent and the shell. It intercepts commands, executes them, and filters or compresses the output before it reaches the LLM context window.
Typical token savings range from 60-90% on command output. RTK ships with support for 100+ commands across git, test runners, build tools, package managers, and cloud CLIs. It also includes a dedicated OpenCode plugin.
Why Use It With Maestria
Section titled “Why Use It With Maestria”Maestria-powered agents use shell commands for builds, tests, git operations, and deployment tasks. Each command’s output consumes tokens in the context window. RTK reduces the token cost of these operations, keeping context windows from filling with verbose output.
Less token burn on tool output means more room for reasoning, instruction following, and code generation. For long agent sessions running many commands, the savings add up.
Installation
Section titled “Installation”macOS (Homebrew):
brew install rtkOther platforms: Download the standalone installer from the GitHub releases page.
Quick Start
Section titled “Quick Start”Run rtk init -g to set up global shell hooks. RTK works with OpenCode, Claude
Code, Cursor, Copilot, and other AI coding agents; no per-agent configuration
needed.