Rtk Optimizer

[!NOTE] This fork exists because openrtk appears inactive, with no updates for roughly four months. The npm package will be removed if changes are accepted upstream.

OpenCode plugin for RTK (Rust Token Killer). Reduces LLM token consumption by 60-90% on common dev commands by transparently routing them through RTK's output compression.

A lightweight OpenCode plugin that intercepts shell commands and routes them through RTK for automatic output compression. The model retains the original command in its history while receiving RTK's optimized output.

Prerequisites

Install RTK:

cargo install rtk

Installation

Install via npm:

npm install opencode-rtk-optimizer

Then add to your OpenCode config (opencode.json or .opencode/config.json):

{
  "plugin": ["opencode-rtk-optimizer"]
}

Or copy src/index.ts directly into .opencode/plugins/ for local use.

How it works

The plugin hooks into OpenCode's tool execution events and delegates shell command rewrites to rtk rewrite. The rewritten command executes while the original command remains visible to the model.

git status       ->  rtk git status       (72% savings)
cargo test       ->  rtk cargo test       (80% savings)
docker ps        ->  rtk docker ps        (65% savings)

Supported commands are determined by the installed RTK version. Common rewrites include:

Supported commands

Category	Commands
Git	status, diff, log, add, commit, push, pull, branch, fetch, stash, show
GitHub CLI	pr, issue, run, api, release
Rust	cargo test/build/clippy/check/install/fmt
File ops	cat, grep, rg, ls, tree, find, diff
JS/TS	vitest, npm test/run, tsc, eslint, prettier, playwright, prisma
Containers	docker (compose/ps/images/logs/run/build/exec), kubectl (get/logs/describe/apply)
Network	curl, wget
Python	pytest, ruff, pip, uv pip
Go	go test/build/vet, golangci-lint
Packages	pnpm list/ls/outdated

Development

npm run build     # build the plugin
npm test          # run tests

License

MIT