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Add rtk Token-Compression Proxy

Installs the rtk token-compression proxy into agent containers so every Bash call is filtered for 60–90% token savings.

UtilitiesAdvanced★ 30,471⑂ 12,865AI score 6/10Last updated: Aug 9, 2026

What it does

rtk is a CLI proxy that compresses the output of common dev commands (git, cargo, pytest, docker, kubectl, etc.) for 60–90% token savings. This skill installs rtk on the host, mounts it read-only into a nanoclaw agent group's containers, and registers a Claude Code PreToolUse hook so every Bash tool call is transparently routed through rtk — no CLAUDE.md instructions required.

Main steps:

  1. Install the rtk binary to ~/.local/bin/rtk
  2. Identify the target agent group with ncl groups list
  3. Add a read-only mount via ncl groups config add-mount
  4. Append the PreToolUse hook to settings.json with an idempotent jq filter
  5. Restart the container and verify with rtk --version / rtk gain

Who it's for

  • Operators running multiple nanoclaw agent groups who want to cut token spend
  • Engineers comfortable with Docker mounts, allowlists, and hook configuration
  • Teams whose agents frequently run verbose build/CI/log-heavy commands

Examples

  • Measure the win: after wiring the hook, have the agent run git status or cargo build, then check rtk gain for actual savings.
  • Fleet rollout: list groups with ncl groups list and repeat steps 3–5 for each agent group.
  • Debug a silent failure: if the container reports rtk: command not found, re-check the mount, the mount-allowlist.json entry, and restart per the troubleshooting section.

· · · Install guide · · ·

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 .claude/skills/add-rtk folder from the GitHub repo nanocoai/nanoclaw into my ~/.claude/skills/add-rtk/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/nanocoai/nanoclaw.git /tmp/nanoclaw && mkdir -p ~/.claude/skills && cp -r /tmp/nanoclaw/.claude/skills/add-rtk ~/.claude/skills/

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

  1. Open a terminal and create the skills folder: mkdir -p ~/.claude/skills
  2. Clone the repository: git clone https://github.com/nanocoai/nanoclaw.git /tmp/nanoclaw
  3. Copy the skill: cp -r /tmp/nanoclaw/.claude/skills/add-rtk ~/.claude/skills/
  4. Restart Claude Code and confirm add-rtk appears in your skills list.
  5. Check prerequisites: nanoclaw's ncl CLI, Docker, and jq must be installed.
  6. Run the rtk installer as described in the skill. It uses curl | sh, so download and inspect the script first if you prefer a safer install.
  7. Make sure ~/.local/bin is listed in ~/.config/nanoclaw/mount-allowlist.json, then proceed with the mount, hook edit, and container restart.
View source on GitHub ↗License: MIT