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Genshijin Compress (memory file token slimmer)

Compresses Japanese memory files (CLAUDE.md, todos, configs) into terse "caveman" style to cut input tokens while keeping code and structure intact.

UtilitiesIntermediate★ 310⑂ 11AI score 9/10Last updated: Aug 15, 2026

What it does

  • Aggressively compresses prose only in files like CLAUDE.md, todo lists and config notes: drops polite forms, filler words, obvious particles and "please do X" phrasing, and rewrites sentences in clipped noun-ending style.
  • Declares strict read-only zones: fenced/indented code blocks, inline backticks, URLs, file paths, commands, env vars, versions/dates/numbers, raw error messages and proper nouns.
  • Preserves Markdown structure: headings, bullet nesting, numbered lists, tables, frontmatter.
  • The compressed version overwrites the original file, while the human-readable copy is saved as FILE.original.md.
  • Refuses to send secrets: .env, credentials.*, SSH keys, certificates, anything under .ssh/.aws/.gnupg/.kube/.docker, or filenames containing secret/token/apikey.

Who it's for

  • Anyone maintaining long Japanese CLAUDE.md or project-rule docs that eat context every session.
  • Teams trying to reduce token spend from bloated memory files.
  • Users who want compression but fear their code samples and commands getting mangled.

Usage examples

  1. /genshijin-compress ~/project/CLAUDE.md → prose shrinks, code blocks copied verbatim, backup written to CLAUDE.original.md.
  2. Ask "compress my memory file" → the skill detects file type, runs the compression CLI, validates output, and patches only the broken spots on failure (max 2 retries).
  3. Point it at .env or id_rsa → it refuses and explains the security rule.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/InterfaceX-co-jp/genshijin/HEAD/skills/genshijin-compress/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/genshijin-compress folder from the GitHub repo InterfaceX-co-jp/genshijin into my ~/.claude/skills/genshijin-compress/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/InterfaceX-co-jp/genshijin.git /tmp/genshijin && mkdir -p ~/.claude/skills && cp -r /tmp/genshijin/skills/genshijin-compress ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/InterfaceX-co-jp/genshijin.git /tmp/genshijin
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r /tmp/genshijin/skills/genshijin-compress ~/.claude/skills/
  5. Verify Python: python3 --version (the compression CLI needs Python 3).
  6. Restart Claude Code, then run /genshijin-compress /absolute/path/CLAUDE.md or just ask it to compress a memory file.
  7. Test on a throwaway copy first and confirm the FILE.original.md backup exists, since the original path is overwritten.
View source on GitHub ↗License: MIT