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js-obfuscation SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

js-obfuscation from slilbudget/knowledge-delta-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add slilbudget/knowledge-delta-skills/js-obfuscation@git:20260828.24e782b

Pins git:20260828.24e782b in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: slilbudget/knowledge-delta-skills
Path: skills/security/js-obfuscation/SKILL.md
Versions recorded: 2
Latest version: git:20260828.24e782b, committed Aug 28, 2026
First version recorded: Aug 11, 2026
Size: 3,891 bytes
Repository stars: 3
License: MIT

Use when obfuscating JavaScript, building anti-detection layers, evading Google Safe Browsing, hiding payloads from scanners, adding anti-bot/anti-DevTools protection, or preparing phishing/red-team pages for deployment.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# JS Obfuscation & Anti-Detection

## Architecture: Defense-in-Depth Layers

```
Request arrives
  ├─ L1: Server-side cloaking (IP/ASN/GeoIP) → anti-bot.md
  │   ├─ L2: CAPTCHA gate (Turnstile) → anti-bot.md
  │   │   ├─ L3: JS anti-bot (webdriver, fingerprint, behavior) → anti-bot.md
  │   │   │   ├─ L4: Encrypted payload (AES/XOR/Unicode) → encryption.md
  │   │   │   │   └─ L5: Obfuscated JS (javascript-obfuscator) → obfuscator-configs.md
  │   │   │   └─ L6: One-time URLs (single use, then 404)
  │   │   └─ Anti-DevTools → anti-devtools.md
```

Without L1 everything else just delays detection. With L1, site can live weeks.

## Quick Decision Guide

| Scenario | Layers |
|----------|----------------|
| Quick red team page | L5 (balanced) + anti-DevTools |
| Production phishing with longevity | All 6 |
| Landing page (BitB popup) | L3 + L5 + anti-DevTools |
| Cloudflare Worker | L1 (ASN via CF) + L4 + L5 |
| Email attachment HTML | L4 (AES, key in URL fragment) + L5 (max) + anti-DevTools |

## Evasion Checklist (Safe Browsing / VirusTotal / PhishTank / CF WAF)

1. Server-side IP/ASN/GeoIP filter — crawlers never see payload
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add slilbudget/knowledge-delta-skills/js-obfuscation@sha256:68dceee51e183289

The line at the top of this page pins the label git:20260828.24e782b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_535p45tcmaigwdol.svg)](https://markdownregistry.com/a/art_535p45tcmaigwdol)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Aug 11, 2026 and Aug 28, 2026, about one every 17 days.

version	committed	commit	size	audit
git:20260828.24e782b latest	2026-08-28	24e782b	3,891 B	A	view · diff
git:20260811.05d4e00	2026-08-11	05d4e00	4,511 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (3891 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

slilbudget/knowledge-delta-skills · 3 stars · license MIT · pushed 2026-09-29 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_535p45tcmaigwdol
GET https://markdownregistry.com/api/v1/resolve?ref=slilbudget/knowledge-delta-skills/js-obfuscation
GET https://markdownregistry.com/api/v1/blob/68dceee51e18328921523f086a0ef880a556d0f012c075a5fc1dfc16789cf764

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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