CAT
/Skills
SkillsMCPMarketplacesDigestToolsAdvertise

This week in Claude

Every Monday: Claude Code, Agent SDK, MCP, and the Anthropic platform moves worth your time.

Skills by Category
Frontend DevelopmentBackend & APIsTesting & QASecurityDevOps & CI/CDGit & Pull RequestsDocumentationCode Review & QualityAI & Agent BuildingSkill Development
MCP Servers by Category
Sales & MarketingWeb & Browser AutomationDatabasesAI & LLM ToolsCloud & InfrastructureCommunication & MessagingDeveloper ToolsDesign & CreativeDocuments & KnowledgeSearch & Web Crawling
Marketplaces by Category
AI Agents & OrchestrationLLM IntegrationDevelopment ToolsFrontend & UIBackend & APIsDatabasesTesting & Code QualityDevOps & CloudSecurity & ComplianceGit & Version Control

Cross AI Tools

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

Resources

  • Browse Skills
  • Browse MCP Servers
  • Browse Marketplaces
  • Plugins Reference

Community

  • About
  • Tools
  • Feedback
  • Privacy Policy
  • Advertise

Built for the Claude Code community with Claude Code by @mertduzgun

Independent project, not affiliated with Anthropic

Tariff Calculator Amazon

nexscope-ai/amazon-skills
232 installs210 stars
Summary

If you're selling on Amazon internationally, this handles the math you'd otherwise be fumbling through spreadsheets for. It calculates landed costs across major trade routes (China to US, EU, UK, plus custom pairs), factors in Section 301 tariffs on Chinese goods, and handles VAT/GST by country. The HS code lookup is handy since product classifications are never obvious. Works offline without API keys, which is nice when you're just modeling scenarios. Output is clean and detailed enough to actually use for pricing decisions. Built for sellers who need real numbers fast, not customs brokers who live in this stuff daily.

Install to Claude Code

npx -y skills add nexscope-ai/amazon-skills --skill tariff-calculator-amazon --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Keep your Mac awake
Keep your Mac awake
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Context.devContext.dev
Context.dev
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Keep your Mac awake
Keep your Mac awake
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Context.devContext.dev
Context.dev
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Files
SKILL.mdView on GitHub

Tariff Calculator — Amazon 💰

Universal tariff and landed cost calculator for international Amazon sellers.

Installation

npx skills add nexscope-ai/eCommerce-Skills --skill tariff-calculator-amazon -g

Features

  • Universal Trade Routes — Any origin to any destination
  • Tariff Rate Lookup — HS code → duty rate
  • Section 301 Tariffs — US additional duties on China imports
  • VAT/GST Calculation — EU, UK, CA, AU, CN rates
  • Landed Cost — Complete cost breakdown
  • HS Code Matcher — Product description → HS code suggestions
  • Trade Agreements — USMCA, EVFTA, RCEP preferential rates

Supported Trade Routes

RouteKey TariffsVAT/GST
🇨🇳 → 🇺🇸 China → USASection 301 (7.5-25%)N/A
🇨🇳 → 🇪🇺 China → EUStandard duties19-22%
🇨🇳 → 🇬🇧 China → UKStandard duties20%
🇺🇸 → 🇪🇺 USA → EUStandard duties19-22%
🇪🇺 → 🇺🇸 EU → USAStandard dutiesN/A
🇺🇸 → 🇨🇳 USA → ChinaRetaliatory tariffs13% VAT
🇨🇳 → 🇨🇦 China → CanadaStandard duties5% GST
🇨🇳 → 🇦🇺 China → AustraliaStandard duties10% GST
CustomUser-definedUser-defined

Section 301 Tariffs (China → USA)

HS ChapterProductsAdditional Rate
84xxComputers, machinery25%
85xxElectronics (some)0-25%
94xxFurniture, lighting25%
95xxToys25%
61/62Apparel7.5%
64xxFootwear7.5%
42xxBags, accessories7.5%

Landed Cost Formula

Landed Cost = 
    FOB Value
  + International Freight
  + Insurance
  + Import Duty
  + VAT/GST (if applicable)
  + Customs Clearance
  + Port Fees
  + Inland Freight

Usage

Basic Calculation

python3 scripts/calculator.py

With Parameters

python3 scripts/calculator.py '{
  "hs_code": "8518300000",
  "origin_country": "CN",
  "destination_country": "US",
  "fob_value": 5000.00,
  "quantity": 500,
  "freight_cost": 200.00
}'

HS Code Lookup

python3 scripts/hs_lookup.py "wireless earbuds"
python3 scripts/hs_lookup.py "bluetooth speaker"

Custom Trade Route

python3 scripts/calculator.py '{
  "hs_code": "9503009000",
  "origin_country": "VN",
  "destination_country": "DE",
  "fob_value": 10000.00,
  "quantity": 1000,
  "freight_cost": 500.00,
  "custom_duty_rate": 0.047,
  "custom_vat_rate": 0.19
}'

Output Example

💰 Tariff & Landed Cost Report

Product: Wireless Bluetooth Earbuds
HS Code: 8518300000
Route: China 🇨🇳 → USA 🇺🇸

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

📦 Cost Breakdown

FOB Value               $  5,000.00
International Freight   $    200.00
Insurance               $     15.00
CIF Value               $  5,215.00

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🏛️ Duties & Taxes

Base Duty (0.0%)        $      0.00
Section 301 (0.0%)      $      0.00
Total Duty              $      0.00
Customs Clearance       $    150.00
Port Fees               $     50.00

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💵 Landed Cost Summary

Total Landed Cost       $  5,515.00
Per Unit Cost           $     11.03

Trade Agreement Support

AgreementCountriesBenefit
USMCAUS, Mexico, CanadaReduced/zero duties
EVFTAEU, VietnamReduced duties
RCEPAsia-PacificReduced duties
UK-JapanUK, JapanReduced duties

Custom Configuration

Create a custom config for your routes:

{
  "default_origin": "CN",
  "default_destination": "US",
  "include_insurance": true,
  "insurance_rate": 0.003,
  "customs_fee": 150,
  "port_fee": 50
}

Part of Nexscope AI — AI tools for e-commerce sellers.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Keep your Mac awake
Keep your Mac awake
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Context.devContext.dev
Context.dev
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
First SeenJun 3, 2026
View on GitHub

Recommended

caveman

juliusbrussee/caveman

Ultra-compressed communication mode cutting token usage ~75% while preserving technical accuracy.
203.4k
67.8k
grill-me

mattpocock/skills

Relentless interviewing skill that stress-tests plans and designs through systematic questioning.
250.9k
114.5k
improve

shadcn/improve

Survey any codebase as a senior advisor and produce prioritized, self-contained implementation plans for other models/agents to execute.
10
205
systematic-debugging

obra/superpowers

Structured debugging methodology that mandates root cause investigation before attempting any fixes.
124.6k
215.9k
karpathy-guidelines

forrestchang/andrej-karpathy-skills

Behavioral guidelines to reduce common LLM coding mistakes through explicit assumptions, simplicity, and verifiable success criteria.
13.9k
165.4k
find-skills

vercel-labs/skills

Discover and install specialized agent skills from the open ecosystem when users need extended capabilities.
1.8M
21.1k