Content Risk Detection System

Ship copy that
stays safe

Kevlar-4u's 5-layer defense + 7-dimension offense analysis eliminates semantic blind spots. 9 industry reviewer personas simulate real public sentiment. Your drafts run 100% locally — never uploaded.

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< 5%Miss rate

< 50msLatency

9Reviewers

Four-Layer Protection

From keyword matching to LLM semantic audit — layered defense that eliminates systematic blind spots

L1 Keyword Match

HashSet index, O(1) exact blocking, static blacklist with wildcard/regex dual engine

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L2 Semantic Inference

Root-to-variant derivation, HashMap secondary index, cross-dimension risk scoring

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L3 Subculture Audit

9-persona prompts sent to LLM to simulate public group reaction across demographics

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L4 Persistence Layer

Unified DAO output interface, seamlessly extensible to cloud subscription rule sources

<50

Single-pass latency under 50ms

L1–L4 pipeline, excluding remote LLM calls

Zero external dependencies in Phase 1

5 Defense · 7 Offense

Systematic risk control + virality quantification, both in one pass

Defense Dimensions

System-enforced, always on

5 维

Social Risk & Group Ethics

Group conflict, public order, unintended vulgar associations

Legal & Compliance Redlines

Advertising law, platform rules, ideological boundaries

Context Distortion Risk

Potential for malicious misreading out of context

Factual Integrity

Factual errors, out-of-context claims, logical flaws

Network Culture & Slang Risk

Slang collisions, offensive homophones, subculture misuse

Offense Dimensions

All on by default, customizable

7 维

Hook & First-Screen Retention

Attention-grabbing power, above-the-fold information density

Virality & Spread Potential

Social drive for shares, saves, and comments

Narrative Structure & Density

Flow, logical coherence, information redundancy

Emotional Resonance & Tension

Emotional engagement, immersion, relatability

Action Conversion Rate

CTA clarity, behavioral goal guidance

Differentiation & Memorability

Distinctiveness and recall within the category

Information Gap Value

Insights not easily found through conventional channels

9 Reviewer Personas

Academically framed, rigorously desensitized, safe and compliant

🏮

V01

Local Cultural Identity

💼

V02

Pragmatic Professional

🌸

V03

Urban Modern Woman

🔬

V04

Rational Analytical Man

🚶

V05

General Public

✊

V06

Youth Idealist

📊

V07

Hardcore Market Observer

🏛️

V08

Traditional Culture Advocate

🎮

V09

Vertical Community Core Player

🔒

Privacy by design

All review content runs exclusively in the local MCP node. Draft text is never transmitted to Kevlar-4u cloud servers — not even for rule matching. Only encrypted rule patches travel over the wire.

PR Crisis Early Warning

These cases would have been caught before publishing

FoodFMCG Brand

Slang Collision

"Addicted to these tender pink "wood ear" crisps — can't stop"

"Pink wood ear" carries sexual slang connotations in certain online communities without food-specific qualifiers

SkincareBeauty Brand

Borderline Marketing

"Areola-tone lip color — the more you wear it, the more you want to be seen"

Direct reference to intimate body parts; triggers advertising law's prohibition on suggestive physiological associations

EdTechEducation Company

Compliance Redline

"If your child doesn't try hard enough, your anxiety is their future"

Emotional hostage-taking of parents; violates platform rules against fear-based advertising

SportswearSports Brand

Group Conflict

"Real men don't wear flashy things"

Gender stereotype labeling; triggers backlash from urban women and youth idealist segments — high Weibo escalation risk

以上案例均由 Kevlar-4u 在发布前成功拦截，避免潜在舆论危机

Trusted by creators & PR teams

Real feedback from content creators and brand communication teams

We ran 200 historical copies through it before launch and found 17 risk points we'd never noticed. It helped us avoid at least two potential Weibo trending-topic crises.

LXT

Lin Xiaotong

Brand PR Director

Top-tier Beauty Group

The worst thing when writing scripts is having a joke pulled mid-campaign. The subculture dimension is impressively accurate — it flagged several slang terms I had no idea about.

ZYH

Zhao Yuhang

Screenwriter / Content Strategist

Independent Creator

I run my sales scripts through Kevlar-4u every day before going live. Platform warnings dropped by 80% since I started.

SYM

Su Yumeng

Live Streamer / KOL

MCN Agency

My manager requires every public statement to go through the system. The context distortion dimension has blocked several posts that could have been taken out of context on Weibo.

Chen Mo

Actor / Artist

Independent Studio

Clients dread post-launch crises. We now attach Kevlar-4u reports to every pitch. Clients call it professional — our pitch approval rate has visibly improved.

WZH

Wang Zihan

Creative Director

4A Ad Agency

Five people, multiple posts a day each. The MCP plugin integrates directly into the workflow — zero extra steps, invisible review. Game changer for our team.

GMB

Gu Mubai

New Media Operations

Major Internet Company

Simple, Transparent Pricing

Free tier covers the basics. Pro covers everything.

Prices based on CNY 299/mo. Other currencies rounded from live exchange rates.

Free

$0/mo

Local MCP plugin
Open-source rule set (L1-L2)
4 defense dimensions
1 Sync Token
Community support

Get Started

Ship copy thatstays safe