rtk-ai/rtk

Health v2 · maintenance only

Adoption not part of the score

77533 stars · 4875 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

RTK (Rust Token Killer) is a CLI proxy that intercepts shell commands and compresses their output before it reaches an LLM agent's context window, cutting bash output tokens by 60-90%. It ships as a single zero-dependency Rust binary supporting 100+ common commands like git, cargo test, pytest, grep, and ls.

Use cases

• reduce token costs when using AI coding agents like Claude Code or Cursor
• prevent context window overflow during long agent coding sessions
• compress git diff and git status output for LLM consumption
• trim test runner output to failures only for AI agents
• lower API bills on pay-per-token coding assistants
• make CLI output more compact for human reading too

When to choose

• you use AI coding agents (Claude Code, Aider, Cursor, Gemini CLI) that read lots of shell output
• you hit context limits or rate limits during agent sessions
• you pay per token and want to cut CLI noise from your bill
• you want a fast, zero-dependency single-binary tool with <10ms overhead

When to avoid

• you need full, unabridged command output for debugging or auditing
• your workflow depends on parsing exact raw output formats from commands
• you don't use LLM agents and aren't bothered by verbose CLI output
• you need guaranteed identical output semantics from wrapped commands

Facets

cli-tool · maturity active

cli developer-tools llm-inference compression middleware developer-tools large-language-models cli cross-platform windows token-optimization agentic-coding claude-code cost-reduction rust-binary cli-proxy command-line ai-agents macos linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rtk-ai/rtk")