Undetectable AI

TypeScript CLI tools for bypassing AI content detectors by removing telltale patterns.

Setup

cd scripts && npm install

Scripts

analyze.ts — Scan for Detectable Patterns

Finds patterns that AI detectors look for: vocabulary, sentence structure, artifacts.

# Analyze a file
npx ts-node scripts/analyze.ts input.txt

# From stdin
echo "This serves as a testament" | npx ts-node scripts/analyze.ts

# JSON output
npx ts-node scripts/analyze.ts input.txt --json

Output:

==================================================
AI DETECTION SCAN - 5 issues found
==================================================

AI VOCABULARY:
  • testament: 1x
  • crucial: 2x

AUTO-FIXABLE:
  • "serves as" → "is": 1x

transform.ts — Auto-Fix Patterns

Rewrites text to evade detection.

# Transform and print
npx ts-node scripts/transform.ts input.txt

# Write to file
npx ts-node scripts/transform.ts input.txt -o output.txt

# Fix em dashes too
npx ts-node scripts/transform.ts input.txt --fix-dashes

# Quiet mode
npx ts-node scripts/transform.ts input.txt -q

What it fixes: - Filler phrases: "in order to" → "to" - AI vocabulary: "utilize" → "use", "leverage" → "use" - Sentence starters: removes "Additionally,", "Furthermore," - Chatbot artifacts: removes entire sentences with "I hope this helps", etc. - Curly quotes → straight quotes - Capitalization after removals

Workflow

1. Scan to see detection risk: bash npx ts-node scripts/analyze.ts essay.txt

2. Auto-fix mechanical patterns: bash npx ts-node scripts/transform.ts essay.txt -o essay_clean.txt

3. Manual pass for flagged AI vocabulary (requires judgment)

4. Re-scan to verify: bash npx ts-node scripts/analyze.ts essay_clean.txt

Customizing

Edit scripts/patterns.json: - ai_words — vocabulary to flag (manual fix needed) - puffery — promotional language to flag - replacements — auto-replace mappings - chatbot_artifacts — phrases that trigger full sentence removal

Batch Processing

# Scan all docs
for f in *.txt; do
  echo "=== $f ==="
  npx ts-node scripts/analyze.ts "$f"
done

# Transform all
for f in *.md; do
  npx ts-node scripts/transform.ts "$f" -o "${f%.md}_clean.md" -q
done