baoyu-compress-image

baoyu-compress-image is a skill for Claude Code from JimLiu/baoyu-skills. It costs 48 tokens per session (693 once invoked), scanned A, original, MIT.

An image-compression tool that reduces image file size and can convert images to WebP or PNG. WebP and PNG are image file formats commonly used for websites and applications.

In plain words
What is it for?
Use it on an image file or directory to compress images, convert them to WebP or PNG, choose an output path, set quality, or preserve the original according to preferences.
Why use it?
It helps make images take up less storage and load faster while keeping them in a usable format. It can choose an available image-processing tool for the job.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: built for openclaw.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ${BUN_X} {baseDir}/scripts/main.ts ./images/ -r -q 75.

Part of the baoyu-skills plugin — 21 skills shipped together

not rated 26krepo +163 2d ago A scan Socket: passSnyk: passSkillSpector: warn 48 tokens original MIT

Good fit Use it on an image file or directory to compress images, convert them to WebP or PNG, choose an output path, set quality, or preserve the original according to preferences.

Compare 6 skills from other repositories ↓
About the project

baoyu-skills is a collection of reusable skills that give AI coding agents instructions for tasks such as preparing and publishing content. It supports agents including Claude Code, Codex, and OpenClaw, with users installing only the workflows they need. The catalogue contains selected skills from this collection.

JimLiu/baoyu-skills · 25,839 stars · on GitHub

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/JimLiu/baoyu-skills
agentmods
npx agentmods add skills/jimliu/baoyu-skills/baoyu-compress-image

Made for: Claude Code.

Or install baoyu-skills, the plugin that ships this one along with the rest of its 21 skills.

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 baoyu-compress-image

README.md
[![agentmods](https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-compress-image/github.svg)](https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-compress-image)
Your own site
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-compress-image"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-compress-image/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for baoyu-compress-image

Your own site · 80×15
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-compress-image"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-compress-image.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 693 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 20 Apr 2026
  • Snyk pass 20 Apr 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 20
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 5.1 $0.00048 $0.00693
Opus 5 $0.00024 $0.00347
Sonnet 5 $0.00010 $0.00139
Haiku 4.5 $0.00005 $0.00069

Measured 13d ago against content hash b14b2ac50b79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

baoyu-compress-image 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 13d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/main.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

skills/baoyu-compress-image/SKILL.md · 82 lines

What it actually says

Image Compressor

Compresses images using best available tool (sips → cwebp → ImageMagick → Sharp).

Script Directory

Scripts in scripts/ subdirectory. {baseDir} = this SKILL.md's directory path. Resolve ${BUN_X} runtime: if bun installed → bun; if npx available → npx -y bun; else suggest installing bun. Replace {baseDir} and ${BUN_X} with actual values.

Script Purpose
scripts/main.ts Image compression CLI

Preferences (EXTEND.md)

Check EXTEND.md in priority order — the first one found wins:

Priority Path Scope
1 .baoyu-skills/baoyu-compress-image/EXTEND.md Project
2 ${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-compress-image/EXTEND.md XDG
3 $HOME/.baoyu-skills/baoyu-compress-image/EXTEND.md User home

If none found, use defaults.

EXTEND.md supports: Default format, default quality, keep-original preference.

Usage

${BUN_X} {baseDir}/scripts/main.ts <input> [options]

Options

Option Short Description Default
<input> File or directory Required
--output -o Output path Same path, new ext
--format -f webp, png, jpeg webp
--quality -q Quality 0-100 80
--keep -k Keep original false
--recursive -r Process subdirs false
--json JSON output false

Examples

# Single file → WebP (replaces original)
${BUN_X} {baseDir}/scripts/main.ts image.png

# Keep PNG format
${BUN_X} {baseDir}/scripts/main.ts image.png -f png --keep

# Directory recursive
${BUN_X} {baseDir}/scripts/main.ts ./images/ -r -q 75

# JSON output
${BUN_X} {baseDir}/scripts/main.ts image.png --json

Output:

image.png → image.webp (245KB → 89KB, 64% reduction)

Extension Support

Custom configurations via EXTEND.md. See Preferences section for paths and supported options.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 13d ago First seen · 82 lines · 48 tokens per session scan A b14b2ac50b79

Subscribe to this mod's changes

baoyu-compress-image is a skill published in the GitHub repository JimLiu/baoyu-skills (25,839 stars, last pushed 2d ago), licensed MIT. It adds 48 tokens to every session and 693 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.

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