AI 节省Token,节约成本 - 守护你的Token

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High-performance CLI proxy that reduces LLM token consumption by 60-90%

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rtk filters and compresses command outputs before they reach your LLM context. Single Rust binary, 100+ supported commands, <10ms overhead.

Token Savings (30-min Claude Code Session)

Operation	Frequency	Standard	rtk	Savings
`ls` / `tree`	10x	2,000	400	-80%
`cat` / `read`	20x	40,000	12,000	-70%
`grep` / `rg`	8x	16,000	3,200	-80%
`git status`	10x	3,000	600	-80%
`git diff`	5x	10,000	2,500	-75%
`git log`	5x	2,500	500	-80%
`git add/commit/push`	8x	1,600	120	-92%
`cargo test` / `npm test`	5x	25,000	2,500	-90%
`ruff check`	3x	3,000	600	-80%
`pytest`	4x	8,000	800	-90%
`go test`	3x	6,000	600	-90%
`docker ps`	3x	900	180	-80%
Total		~118,000	~23,900	-80%

> Estimates based on medium-sized TypeScript/Rust projects. Actual savings vary by project size.

Installation

Homebrew (recommended)

brew install rtk

Quick Install (Linux/macOS)

curl -fsSL https://raw.githubusercontent.com/rtk-ai/rtk/refs/heads/master/install.sh | sh

> Installs to ~/.local/bin. Add to PATH if needed: >

 > echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc # or ~/.zshrc >

Cargo

cargo install --git https://github.com/rtk-ai/rtk

Pre-built Binaries

Download from releases:

macOS: rtk-x86_64-apple-darwin.tar.gz / rtk-aarch64-apple-darwin.tar.gz
Linux: rtk-x86_64-unknown-linux-musl.tar.gz / rtk-aarch64-unknown-linux-gnu.tar.gz
Windows: rtk-x86_64-pc-windows-msvc.zip

Verify Installation

rtk --version # Should show "rtk 0.28.2" rtk gain # Should show token savings stats

> Name collision warning: Another project named "rtk" (Rust Type Kit) exists on crates.io. If rtk gain fails, you have the wrong package. Use cargo install --git above instead.

Quick Start

# 1. Install for your AI tool rtk init -g # Claude Code / Copilot (default) rtk init -g --gemini # Gemini CLI rtk init -g --codex # Codex (OpenAI) rtk init -g --agent cursor # Cursor rtk init --agent windsurf # Windsurf rtk init --agent cline # Cline / Roo Code # 2. Restart your AI tool, then test git status # Automatically rewritten to rtk git status

The hook transparently rewrites Bash commands (e.g., git status -> rtk git status) before execution. Claude never sees the rewrite, it just gets compressed output.

Important: the hook only runs on Bash tool calls. Claude Code built-in tools like Read, Grep, and Glob do not pass through the Bash hook, so they are not auto-rewritten. To get RTK’s compact output for those workflows, use shell commands (cat/head/tail, rg/grep, find) or call rtk read, rtk grep, or rtk find directly.

How It Works

 Without rtk: With rtk: Claude --git status--> shell --> git Claude --git status--> RTK --> git ^ | ^ | | | ~2,000 tokens (raw) | | ~200 tokens | filter | +-----------------------------------+ +------- (filtered) ---+----------+

Four strategies applied per command type:

Smart Filtering - Removes noise (comments, whitespace, boilerplate)
Grouping - Aggregates similar items (files by directory, errors by type)
Truncation - Keeps relevant context, cuts redundancy
Deduplication - Collapses repeated log lines with counts

Commands

Files

rtk ls . # Token-optimized directory tree rtk read file.rs # Smart file reading rtk read file.rs -l aggressive # Signatures only (strips bodies) rtk smart file.rs # 2-line heuristic code summary rtk find "*.rs" . # Compact find results rtk grep "pattern" . # Grouped search results rtk diff file1 file2 # Condensed diff

Git

rtk git status # Compact status rtk git log -n 10 # One-line commits rtk git diff # Condensed diff rtk git add # -> "ok" rtk git commit -m "msg" # -> "ok abc1234" rtk git push # -> "ok main" rtk git pull # -> "ok 3 files +10 -2"

GitHub CLI

rtk gh pr list # Compact PR listing rtk gh pr view 42 # PR details + checks rtk gh issue list # Compact issue listing rtk gh run list # Workflow run status

Test Runners

rtk test cargo test # Show failures only (-90%) rtk err npm run build # Errors/warnings only rtk vitest run # Vitest compact (failures only) rtk playwright test # E2E results (failures only) rtk pytest # Python tests (-90%) rtk go test # Go tests (NDJSON, -90%) rtk cargo test # Cargo tests (-90%) rtk rake test # Ruby minitest (-90%) rtk rspec # RSpec tests (JSON, -60%+)

Build & Lint

rtk lint # ESLint grouped by rule/file rtk lint biome # Supports other linters rtk tsc # TypeScript errors grouped by file rtk next build # Next.js build compact rtk prettier --check . # Files needing formatting rtk cargo build # Cargo build (-80%) rtk cargo clippy # Cargo clippy (-80%) rtk ruff check # Python linting (JSON, -80%) rtk golangci-lint run # Go linting (JSON, -85%) rtk rubocop # Ruby linting (JSON, -60%+)

Package Managers

rtk pnpm list # Compact dependency tree rtk pip list # Python packages (auto-detect uv) rtk pip outdated # Outdated packages rtk bundle install # Ruby gems (strip Using lines) rtk prisma generate # Schema generation (no ASCII art)

AWS

”`bash rtk aws sts get-caller-identity # One-line identity rtk aws ec2 describe-instances # Compa