🌐 Smart Web Search v3.1

Primary Engines: Baidu (China) + Google (International)

Core Features:

• ✅ Real-time Search - Today/24h/7d/30d time filtering
• ✅ Time Filtering - Specify search time range
• ✅ Multi-engine Aggregation - Search 3-5 engines simultaneously
• ✅ Smart De-duplication - Auto-filter duplicate content
• ✅ AI Summaries - Auto-generated key insights
• ✅ Ad Filtering - Auto-detect and filter ads/promotions
• ✅ Content De-toxication - Filter spam, fake news, misinformation
• ✅ Baidu Integration - China's largest search engine (Primary)
• ✅ Google Integration - World's most accurate engine (Primary)

Auto-selects optimal search engine based on query content.

🧠 Intelligent Detection Logic

Use Baidu Search (China) When:

• 🇨🇳 Query contains Chinese characters
• 🇨🇳 Searching China-related topics (WeChat, Taobao, Baidu, etc.)
• 🇨🇳 Searching Chinese companies/people/events
• 🇨🇳 Searching Chinese policies/news/regulations

Use Google Search (International) When:

• 🌍 Query is pure English
• 🌍 Searching international topics (GitHub, Stack Overflow, Reddit, etc.)
• 🌍 Searching foreign companies/people/events
• 🌍 Searching technical docs/academic papers/international news

🔧 Tool Calls

Domestic Search (Chinese Queries)

Primary Engine (Baidu):

web_fetch(url="https://www.baidu.com/s?wd=query", extractMode="text", maxChars=15000)

Advanced Search:

# Exact match
web_fetch(url="https://www.baidu.com/s?wd=\"exact+keyword\"", extractMode="text", maxChars=15000)

# Exclude site
web_fetch(url="https://www.baidu.com/s?wd=keyword+-site:zhihu.com", extractMode="text", maxChars=15000)

# File type
web_fetch(url="https://www.baidu.com/s?wd=keyword+filetype:pdf", extractMode="text", maxChars=15000)

Real-time News:

# Latest 24 hours
web_fetch(url="https://www.baidu.com/s?wd=query+2026-03-17&src=news", extractMode="text", maxChars=15000)

# Latest 7 days
web_fetch(url="https://www.baidu.com/s?wd=query+this+week&src=news", extractMode="text", maxChars=15000)

Backup Engines (by priority):

1. 360 Search: https://m.so.com/s?q=query
2. Sogou WeChat: https://weixin.sogou.com/weixin?type=2&query=query
3. Bing CN: https://cn.bing.com/search?q=query
4. Sogou Web: https://www.sogou.com/web?query=query
5. Toutiao: https://www.toutiao.com/search/?keyword=query

Baidu Advantages:

• ✅ Largest Chinese index (trillions of pages)
• ✅ Best localization for China
• ✅ Fastest update speed (minute-level)
• ✅ Advanced search syntax support
• ✅ Integrated with Baidu Baike, Zhidao, Tieba

International Search (English Queries)

Primary Engine (Google via Startpage):

web_fetch(url="https://www.startpage.com/do/search?q=query", extractMode="text", maxChars=15000)

Direct Google (if accessible):

web_fetch(url="https://www.google.com/search?q=query", extractMode="text", maxChars=15000)

Real-time News:

# Latest 24 hours
web_fetch(url="https://www.startpage.com/do/search?q=query+2026-03-17", extractMode="text", maxChars=15000)

# Latest 7 days
web_fetch(url="https://www.startpage.com/do/search?q=query+this+week", extractMode="text", maxChars=15000)

Backup Engines (by priority):

1. DuckDuckGo: https://lite.duckduckgo.com/lite/?q=query
2. DuckDuckGo News: https://duckduckgo.com/?q=query&ia=news
3. Qwant: https://www.qwant.com/?q=query&t=web
4. Bing EN: https://www.bing.com/search?q=query
5. Brave Search: https://search.brave.com/search?q=query

Google Advantages:

• ✅ World's largest index (hundreds of billions of pages)
• ✅ Most advanced search algorithm
• ✅ Richest academic resources
• ✅ Best multi-language support
• ✅ Powerful advanced search features

📋 Usage Examples

Chinese Queries

Basic Search:

User: Search NVIDIA latest financial report
→ Auto-use: Baidu Search
→ Time range: Auto-detect "latest" → 7 days

Real-time News:

User: Today March 17 latest news
→ Auto-use: Baidu News Search
→ Time range: 2026-03-17 (today)
→ Extra parameter: &src=news

WeChat Articles:

User: Find WeChat articles about AI
→ Auto-use: Sogou WeChat Search
→ Search type: WeChat official accounts

Specified Time:

User: Search AI news last 24 hours
→ Auto-use: Baidu Search + time filter
→ Time range: 2026-03-16 to 2026-03-17

English Queries

Basic Search:

User: search for latest AI news
→ Auto-use: Google (via Startpage)
→ Time range: Auto-detect "latest" → 7 days

Real-time News:

User: today news March 17 2026
→ Auto-use: Google News
→ Time range: 2026-03-17 (today)

Technical Content:

User: find Python tutorials on GitHub
→ Auto-use: Google
→ Priority sources: GitHub, Stack Overflow

Specified Time:

User: latest tech news this week
→ Auto-use: Google
→ Time parameter: this week

Mixed Queries

International Company:

User: Tesla TSLA stock price today
→ Priority: Google (international company)
→ Backup: Baidu (Chinese results)

China Product:

User: WeChat how to export data
→ Priority: Baidu (domestic product)
→ Backup: Google (English tutorials)

Real-time Search (v3.1 Recommended)

Today's News:

"Search today March 17 AI news"
"NVIDIA latest news (24 hours)"
"latest AI news today March 17"
"2026-03-17 AI latest news"

This Week:

"Search this week AI news"
"AI latest news this week"
"Last 7 days AI updates"

🎯 Search Strategy v3.1

Step 1: Language Detection

• Contains Chinese characters → Baidu (China)
• Pure English/Latin → Google (International)
• Mixed language → Judge by topic

Step 2: Topic Detection

• China companies/products/policies → Baidu
• International companies/tech/academic → Google
• News/current events → Dual-engine parallel

Step 3: Time Detection

Auto-recognize time keywords:

• "Today", "今日", "today" → 2026-03-17
• "Yesterday", "昨天" → 2026-03-16
• "Last 24h", "最近 24 小时" → Past 24 hours
• "This week", "本周" → Current week
• "Latest", "最新" → 7 days
• "This month", "本月" → 30 days

No time keyword → Default 30 days

Step 4: Safety Detection

1. Detect if query involves sensitive topics
   - Medical/health → Enable strict de-tox
   - Finance/investment → Enable scam filter
   - News → Enable fake news filter

2. Set filter level
   - Normal search → Standard filter
   - "Verified", "safe" → Strict filter
   - "Academic", "research" → Authoritative source priority

Step 5: Engine Selection

Domestic Priority:

1. Baidu (Largest Chinese engine) - PRIMARY
2. 360 Search (General)
3. 360 News (Real-time news)
4. Sogou WeChat (Official accounts)
5. Bing CN (Backup)
6. Toutiao (Breaking news)

International Priority:

1. Google via Startpage (Most accurate) - PRIMARY
2. DuckDuckGo (Privacy)
3. DuckDuckGo News (News)
4. Qwant (European)
5. Bing EN (Backup)
6. Brave Search (Privacy)

Step 6: Multi-engine Aggregation

Search 3 engines simultaneously:

Primary: Baidu/Google
Backup 1: 360/Qwant
Backup 2: Bing

Merge Strategy:

• Collect top 10 results from each
• De-duplicate (URL + title similarity)
• Filter ads and toxic content
• Sort by time descending
• Keep 5-8 best results

Step 7: Search + Fetch

1. Search 3 engines simultaneously
2. Merge and de-duplicate results
3. Filter ads (auto-detect)
4. De-toxicate (verify sources)
5. Select 3-5 most relevant URLs
6. Fetch detailed content with web_fetch
7. Generate AI summary

⚠️ Best Practices

For Latest Information

✅ "Search today March 17 XXX news"
✅ "XXX latest news (24 hours)"
✅ "latest XXX news today"
❌ "Search XXX" (no time range, may return old news)

For High Accuracy

✅ "March 17 2026 XXX latest news"
✅ "XXX + 2026-03-17"
✅ "XXX breaking news"
❌ "XXX news" (unclear time range)

For Safe Search

✅ "Search vaccine info (verified)"
✅ "XXX safe search"
✅ "verified XXX info"
❌ Direct search for medical/finance (may encounter misinformation)

For Baidu Search

✅ "Search with Baidu XXX"
✅ "XXX site:baidu.com"
✅ "XXX filetype:pdf"

For Google Search

✅ "Search with Google XXX"
✅ "XXX site:github.com"
✅ "XXX filetype:pdf"

🛡️ Ad Filtering

Auto-detect Ads

Ad Characteristics:

Ad Labels = [
    "广告", "推广", "Sponsored", "Ad", "Promoted",
    "竞价排名", "品牌展示", "商业推广"
]

Ad Positions = [
    "Top of results", "Right sidebar", "Bottom recommendations",
    "Related searches", "Guess you want"
]

Filtering Rules

1. Label Filtering:

✅ Keep: Organic search results
❌ Filter: Results marked as "Ad", "Sponsored", "广告", "推广"

2. Position Filtering:

✅ Keep: Natural results (middle positions)
❌ Filter: Top 3, right sidebar, bottom recommendations

3. Domain Filtering:

❌ Filter domains blacklist:
- Known ad farms
- Low-quality content sites
- Content scrapers

✅ Priority domains whitelist:
- Government sites (.gov.cn)
- Educational institutions (.edu)
- Mainstream media
- Known tech companies

Usage Examples

Enable Ad Filtering:

"Search AI news (filter ads)"
"search AI news (no ads)"
"XXX clean search"

Filter Results:

Raw results: 20 items
Ad count: 6 items (30%)
After filter: 14 items (100% organic)

🧪 Content De-toxication

Toxin Detection

Content Toxin Types:

De-tox Algorithm

1. Source Verification:

Trusted Sources = [
    "Government sites", "Mainstream media", "Academic journals",
    "Known company websites", "Authoritative organizations"
]

if Source not in Trusted Sources:
    Credibility Score -= 30%

2. Content Quality Assessment:

Quality Metrics = [
    "Has author", "Has date", "Has source citations",
    "Clear logic", "Verifiable data"
]

if Quality Score < 60:
    Mark as "Low Quality"

3. Fact-checking:

# Cross-verify multiple sources
if Only single source reports:
    Mark as "Unverified"

if Multiple authoritative sources confirm:
    Credibility += 50%

4. Sentiment Analysis:

if Contains extreme emotion words > 10:
    Mark as "Sensational content"
    Credibility -= 40%

Warning System

Warning Levels:

Usage Examples

Enable De-toxication:

"Search vaccine info (verified)"
"search vaccine info (de-toxic)"
"XXX safe search"
"XXX filter misinformation"

De-tox Results:

Raw results: 20 items
Toxic content: 5 items (25%)
  - Fake info: 2 items
  - Clickbait: 2 items
  - Low quality: 1 item
After filter: 15 items (100% trusted)

📊 Engine Comparison

🚀 Quick Start

Basic Search

"Search XXX"
"search for XXX"
"Help me find XXX"
"find XXX"

Real-time Search (v3.1 Recommended)

Get Today's Latest:

"Search today March 17 XXX news"
"XXX latest news (24 hours)"
"latest XXX news today March 17"
"2026-03-17 XXX latest news"

Get This Week:

"Search this week XXX news"
"XXX latest news this week"
"Last 7 days XXX updates"

Safe Search (v3.1 New)

De-toxic Search:

"Search vaccine info (verified)"
"XXX safe search"
"verified XXX info"
"XXX filter misinformation"

Filter Ads:

"Search XXX (filter ads)"
"XXX no ads"
"XXX clean search"

Specify Engine

Use Baidu:

"Search with Baidu XXX"
"XXX site:baidu.com"

Use Google:

"Search with Google XXX"
"XXX site:github.com"

Advanced Search

Specify Time Range:

"Search March 16-17 2026 XXX"
"XXX news from 2026-03-16 to 2026-03-17"

Specify Source:

"Search WeChat articles about XXX"
"find XXX on GitHub"
"search XXX on Reddit"

📊 v3.1 Changelog

New Features

• ✅ Baidu as primary China engine (was 360)
• ✅ Google as primary International engine (via Startpage)
• ✅ Advanced search syntax support
• ✅ Real-time search (today/24h/7d/30d)
• ✅ Multi-engine aggregation (3 engines)
• ✅ Smart de-duplication (>80% similarity filter)
• ✅ AI summaries (key insights)
• ✅ Time keyword auto-recognition
• ✅ News source priority (real-time news engines)

Improvements

• ✅ Domestic engines: 3 → 6 (+100%)
• ✅ International engines: 3 → 6 (+100%)
• ✅ Timeout optimization (15s auto-skip)
• ✅ Cache optimization (30min/real-time exception)
• ✅ Result ranking (time descending)
• ✅ Accuracy improvement (Baidu + Google)
• ✅ Safety improvement (ad filter + de-tox)
• ✅ All documentation in English

Engine Updates

Domestic New:

• ✅ Baidu (Primary - Largest Chinese engine)
• ✅ Toutiao (Breaking news)

International New:

• ✅ Google via Startpage (Primary - Most accurate)
• ✅ Brave Search (Privacy)

🔮 Roadmap (v4.0)

• Vertical search (academic/images/videos/products)
• AI summary upgrade (multi-language)
• Search subscription (RSS push)
• Custom search engines
• Search history analysis
• Batch search (multi-keyword parallel)
• Fact-check API integration
• Multi-modal search (text+image)

Last updated: 2026-03-17 14:50
Version: v3.1.0
Status: ✅ Production Ready Primary Engines: Baidu (China) + Google (International)