reskill-usage

reskill-usage is a skill for Claude Code, Codex from kanyun-inc/reskill. It costs 40 tokens per session (4,127 once invoked), scanned A, original, MIT.

A guide to reskill, a Git-based package manager for installing, updating, configuring, and publishing AI-agent skills across projects and coding tools.

In plain words
What is it for?
Use it to install or update skills, work with skills.json and skills.lock, publish packages, choose installation sources, and support tools such as Cursor, Claude Code, and Codex.
Why use it?
It explains how to manage shared agent skills consistently through project configuration and lock files instead of handling each installation manually.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/kanyun-inc/reskill/reskill-usage
Any agent
npx skills add kanyun-inc/reskill --skill reskill-usage
Clone the repo
git clone --depth 1 https://github.com/kanyun-inc/reskill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for reskill-usage

README.md
[![agentmods](https://agentmods.dev/badge/skills/kanyun-inc/reskill/reskill-usage.svg)](https://agentmods.dev/skills/kanyun-inc/reskill/reskill-usage)
Your own site
<a href="https://agentmods.dev/skills/kanyun-inc/reskill/reskill-usage"><img src="https://agentmods.dev/badge/skills/kanyun-inc/reskill/reskill-usage.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,127 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00040 $0.04127
Opus 5 $0.00020 $0.02063
Sonnet 5 $0.00008 $0.00825
Haiku 4.5 $0.00004 $0.00413

Measured 4d ago against content hash e74d33914917, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reskill-usage scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/reskill-usage/SKILL.md · 420 lines

How it starts

The opening of the file, as written. The whole thing — 420 lines — stays where its author put it; the contents beside it link to each section on GitHub.

reskill Usage Guide

reskill is a Git-based package manager for AI agent skills. It provides declarative configuration (skills.json + skills.lock), flexible versioning, and multi-agent support for installing, managing, and sharing skills across projects and teams.

Requirements: Node.js >= 18.0.0

CLI usage: If reskill is installed globally, use it directly. Otherwise use npx reskill@latest:

npm install -g reskill        # Global install
npx reskill@latest <command>  # Or use npx directly (no install needed)

When to Use This Skill

Use this skill when the user:

  • Wants to install, update, or manage AI agent skills
  • Mentions skills.json, skills.lock, or reskill-related concepts
  • Wants to publish a skill to a registry
  • Asks about supported install formats (GitHub, GitLab, HTTP, OSS, registry, etc.)
  • Encounters reskill-related errors or needs troubleshooting
  • Wants to set up a project for skill management
  • Asks about multi-agent skill installation (Cursor, Claude Code, Codex, etc.)

AI Agent Execution Rules

AI agents cannot respond to interactive prompts mid-command. Always add -y to commands that support confirmation prompts (install, uninstall, publish) to prevent the command from hanging.

# Correct — will not hang
reskill install github:user/skill -y
reskill uninstall skill-name -y
reskill publish -y

# Wrong — will hang waiting for confirmation
reskill install github:user/skill
reskill uninstall skill-name

Quick Start

# Initialize a new project
npx reskill@latest init

# Install a skill
npx reskill@latest install github:anthropics/skills/skills/frontend-design@latest

# List installed skills
npx reskill@latest list

Commands

Command Alias Description
init - Initialize skills.json
find <query> search Search for skills in the registry
install [skills...] i Install one or more skills
list ls List installed skills
info <skill> - Show skill details
update [skill] up Update skills
outdated - Check for outdated skills
uninstall <skill> un, rm, remove Remove a skill
group - Manage skill groups ¹
publish [path] pub Publish a skill to the registry ¹
login - Authenticate with the registry ¹
logout - Remove stored authentication ¹
whoami - Display current logged in user ¹
doctor - Diagnose environment and check for issues
completion [action] - Setup or remove shell tab completion

Read the full file on GitHub · 420 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 420 lines · 40 tokens per session scan A e74d33914917

Subscribe to this mod's changes

reskill-usage is a skill published in the GitHub repository kanyun-inc/reskill (59 stars, last pushed 23d ago), licensed MIT. It adds 40 tokens to every session and 4,127 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.