ai-agent

cjk-token-reducer

Name: cjk-token-reducer
Author: jserv

Reduce Claude Code token usage by 35-50% when using CJK (Chinese, Japanese, and Korean)

56 stars12 forksRustUpdated 10/13/2026100% free · open source

What it does

The cjk-token-reducer tool reduces Claude Code token usage by 35-50% when working with Chinese, Japanese, and Korean texts, making it more cost-effective for AI-related tasks.

When to use it

•When building applications that heavily rely on text processing for CJK languages
•When optimizing AI model performance for CJK text analysis
•When trying to reduce costs associated with token usage in AI services

Ready-to-paste prompt

./target/release/cjk-token-reducer example_cjk_text.txt

Heads up: Ensure you have Rust and Cargo installed on your system, as the tool is written in Rust and relies on Cargo for building

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/cjk-token-reducer && curl -fsSL https://workflowstacks.com/api/skills/cjk-token-reducer/claude-skill -o ~/.claude/skills/cjk-token-reducer/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How cjk-token-reducer works

Codeflow

Free to inspect

Cjk-token-reducer is a medium Rust project (~6.5k lines across 14 code files). Expect some technical setup — comfortable with a terminal, or ask a developer. Last commit this month, MIT license, no tests found.

Size

Medium codebase

~6.5k lines · 14 code files · 54 min skim

Setup

Some technical setup

Comfortable with a terminal? 20–40 min. Otherwise ask a dev.

Runs on

Rust

No API keys detected

Rust 94%Shell 6%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
src/main.rs
Where the program starts running
3
Cargo.toml
Dependencies and the commands it exposes

What's in each folder

src/Core code — the actual logic13 files

hooks/Hooks — scripts that auto-run on events2 files

scripts/Helper scripts1 files

.github/CI / automation (GitHub Actions)2 files

READMENo tests foundThin docsCI checksMIT licenseUpdated this month