baoyu-electron-extract

baoyu-electron-extract is a skill for Claude Code, Codex from JimLiu/baoyu-skills. It costs 113 tokens per session (2,330 once invoked), scanned A, original, MIT.

A resource and code extractor for installed Electron apps, desktop applications built with web technologies and packaged in an app.asar archive. It restores original source files from source maps when available, or formats compressed code when they are not, and skips third-party dependencies.

In plain words
What is it for?
Use it to inspect an installed Electron app, extract its resources, recover available source code, or make bundled JavaScript readable.
Why use it?
It makes an Electron application's packaged files easier to inspect and read. Source maps can recover the original source structure, while formatting helps with code that has been compressed.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: names the AskUserQuestion tool; mentions Codex; built for openclaw.

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

Good fit Use it to inspect an installed Electron app, extract its resources, recover available source code, or make bundled JavaScript readable.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jimliu/baoyu-skills/baoyu-electron-extract
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

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.

Any agent
npx skills add JimLiu/baoyu-skills --skill baoyu-electron-extract
Clone the repo
git clone --depth 1 https://github.com/JimLiu/baoyu-skills

Made for: Claude Code, Codex.

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-electron-extract

README.md
[![agentmods](https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-electron-extract/github.svg)](https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-electron-extract)
Your own site
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-electron-extract"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-electron-extract/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-electron-extract

Your own site · 80×15
<a href="https://agentmods.dev/skills/jimliu/baoyu-skills/baoyu-electron-extract"><img src="https://agentmods.dev/badge/skills/jimliu/baoyu-skills/baoyu-electron-extract.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,330 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 26 May 2026
  • Snyk warn 26 May 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, 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 30
    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]
  • medium MCP Rug Pull · line 140
    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 $0.00113 $0.02330
Opus 5 $0.00056 $0.01165
Sonnet 5 $0.00023 $0.00466
Haiku 4.5 $0.00011 $0.00233

Measured 12d ago against content hash 3f8714f3030d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

baoyu-electron-extract 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 12d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/main.test.ts, 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

2 near-identical copies found in the catalogue:

skills/baoyu-electron-extract/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Electron App Extract

Extracts resources and code from an installed Electron app's app.asar. When a .js.map is present, restores the original source files from the embedded sourcesContent; otherwise formats the minified code with Prettier. Source-map paths are resolved relative to the .js.map file first, so bundled paths like ../../src/main.ts restore to readable paths such as restored/src/main.ts instead of hashed placeholders. Always skips node_modules. Works on macOS and Windows.

User Input Tools

When this skill prompts the user, follow this tool-selection rule (priority order):

  1. Prefer built-in user-input tools exposed by the current agent runtime — e.g., AskUserQuestion, request_user_input, clarify, ask_user, or any equivalent.
  2. Fallback: if no such tool exists, emit a numbered plain-text message and ask the user to reply with the chosen number/answer for each question.
  3. Batching: if the tool supports multiple questions per call, combine all applicable questions into a single call; if only single-question, ask them one at a time in priority order.

Concrete AskUserQuestion references below are examples — substitute the local equivalent in other runtimes.

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 App discovery + asar extraction + source-map restoration + Prettier formatting

When to use

Use this skill whenever the user wants to look inside an installed Electron application or inspect its bundled code. Trigger phrases include:

  • "extract Electron app", "decompile this Electron app", "unpack app.asar"
  • "show me the source of ", "look inside ", "how is built"
  • "get the source code of Codex / Cursor / Discord / Slack / VS Code / Notion / Obsidian / ChatGPT desktop"
  • "提取 Electron 应用", "看 的源码", "反编译 Electron", "解包 app.asar", "还原 source map"

Read the full file on GitHub · 141 lines

Files

What ships with it

2 files 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. 12d ago First seen · 141 lines · 113 tokens per session scan A 3f8714f3030d

Subscribe to this mod's changes

baoyu-electron-extract is a skill published in the GitHub repository JimLiu/baoyu-skills (25,839 stars, last pushed yesterday), licensed MIT. It adds 113 tokens to every session and 2,330 once invoked, about $0.0006 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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