Humanize Plugin for LM Studio

Detects AI-generated text and rewrites it to sound authentically human — without changing the meaning. Useful for polishing AI-assisted writing before publishing, sending, or presenting.

What It Does

Detects AI-generated text using five local heuristic signals — no external APIs, no data sent anywhere
Rewrites text to vary sentence structure, remove LLM patterns, and match your tone
Convenience mode (analyze_and_humanize) detects first, rewrites only if the score is above a threshold

Installation

Load the built plugin folder in LM Studio.

Configuration

Field	Default	Description
Default Tone	`casual`	Tone used when none is specified in the call. Options: `casual`, `professional`, `academic`, `custom`
AI Score Threshold	`60`	Score (0–100) above which `analyze_and_humanize` triggers a rewrite

Tools

`detect_ai_text`

Kind: Compute

Analyzes text and returns a score from 0 (likely human) to 100 (likely AI) based on five heuristic signals.

Score range	Verdict
0–30	Likely human
31–60	Mixed signals
61–80	Likely AI
81–100	Almost certainly AI

Five signals (with weights):

Signal	Weight	What it detects
Flagged phrase density	30%	AI-specific phrases ("it's worth noting", "delve into", "in conclusion")
Sentence burstiness	25%	Uniform sentence lengths — humans vary far more
Transition word density	20%	Overuse of "moreover", "furthermore", "in addition"
Paragraph symmetry	15%	All paragraphs roughly the same length
Average sentence length	10%	Long, complex sentences throughout

Detection is probabilistic. False positives are possible, especially for formal or academic writing.

`humanize_text`

Kind: Scaffold

Returns a rewrite prompt payload for the LLM to perform. Detects AI patterns first, then gives the LLM specific instructions to fix them while preserving all original meaning.

Tone options:

Tone	Style
`casual`	Conversational, contractions, short sentences, first-person
`professional`	Clear and direct, authoritative but not stiff, no slang
`academic`	Formal but varied, nuanced, avoids LLM academic clichés
`custom`	Provide your own style description in `customToneDescription`

Rewrite rules always applied:

Vary sentence lengths significantly — mix short and long
Remove or rephrase every flagged LLM phrase
Eliminate uniform paragraph lengths
Replace transition words with natural connectors or omit them
Preserve all original meaning, facts, and arguments exactly

`analyze_and_humanize`

Kind: Compute + Scaffold

Convenience tool: detects AI score, then returns a rewrite payload only if the score meets or exceeds the threshold.

If score < threshold: returns detection result with "appears human" verdict, no rewrite
If score ≥ threshold: returns both detection result and full rewrite payload

Use this for the full detect-then-rewrite flow in one call.

Example Sessions

Check if text sounds AI-generated:

"Does this paragraph sound like AI wrote it?"

detect_ai_text(textContent="...") → score: 74, verdict: "likely AI", signals breakdown

Rewrite in professional tone:

"Humanize this email draft in a professional tone"

humanize_text(textContent="...", tone="professional") → rewrite payload → LLM produces rewritten text

Auto detect and rewrite (threshold 60):

"Clean up this blog section"

analyze_and_humanize(textContent="...", tone="casual") → if score ≥ 60, rewrites; if below, leaves as-is

Custom tone for a specific brand voice:

"Rewrite this in our brand voice — dry, technical, no fluff"

humanize_text(textContent="...", tone="custom", customToneDescription="Dry and technical. No filler words. No enthusiasm markers. Direct statements only. Short sentences preferred.") → tailored rewrite