Add SEO skills 19-28, 31-32 with full Python implementations

12 new skills: Keyword Strategy, SERP Analysis, Position Tracking,
Link Building, Content Strategy, E-Commerce SEO, KPI Framework,
International SEO, AI Visibility, Knowledge Graph, Competitor Intel,
and Crawl Budget. ~20K lines of Python across 25 domain scripts.
Updated skill 11 pipeline table and repo CLAUDE.md.
Enhanced skill 18 local SEO workflow from jamie.clinic audit.

Note: Skill 26 hreflang_validator.py pending (content filter block).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

custom-skills/26-seo-international/desktop/tools/ahrefs.md

@@ -0,0 +1,43 @@
+# Ahrefs
+
+## Tools Used
+
+### site-explorer-metrics-by-country
+- **Purpose**: Get country-level organic traffic distribution
+- **Usage**: Analyze which countries drive traffic to identify international SEO opportunities
+- **Parameters**: `target` (domain), `country` (optional filter)
+- **Example**:
+  ```
+  mcp__ahrefs__site-explorer-metrics-by-country:
+    target: example.com
+  ```
+
+### site-explorer-organic-keywords
+- **Purpose**: Get organic keyword rankings filtered by country
+- **Usage**: Analyze keyword performance in specific markets
+- **Parameters**: `target` (domain), `country` (ISO country code)
+- **Example**:
+  ```
+  mcp__ahrefs__site-explorer-organic-keywords:
+    target: example.com
+    country: kr
+  ```
+
+## Configuration
+
+- Ahrefs MCP server must be connected in Claude Desktop
+- API access requires active Ahrefs subscription
+
+## Common Patterns
+
+### Country Traffic Analysis
+1. Call `site-explorer-metrics-by-country` to get traffic distribution
+2. Identify top countries by organic traffic share
+3. Compare with hreflang implementation coverage
+4. Flag countries with traffic but no localized version
+
+### Keyword Gap by Market
+1. Call `site-explorer-organic-keywords` with country filter
+2. Compare keyword counts across target markets
+3. Identify markets with low keyword coverage
+4. Recommend content localization priorities

custom-skills/26-seo-international/desktop/tools/notion.md

@@ -0,0 +1,51 @@
+# Notion
+
+## Database Configuration
+
+| Field | Value |
+|-------|-------|
+| Database ID | `2c8581e5-8a1e-8035-880b-e38cefc2f3ef` |
+| URL | https://www.notion.so/dintelligence/2c8581e58a1e8035880be38cefc2f3ef |
+
+## Required Properties
+
+| Property | Type | Description |
+|----------|------|-------------|
+| Issue | Title | Report title in Korean with date |
+| Site | URL | Audited website URL |
+| Category | Select | "International SEO" |
+| Priority | Select | Based on hreflang error severity |
+| Found Date | Date | Audit date (YYYY-MM-DD) |
+| Audit ID | Rich Text | Format: INTL-YYYYMMDD-NNN |
+
+## Example: Create Audit Report
+
+```
+mcp__notion__notion-create-pages:
+  pages:
+    - parent_id: "2c8581e5-8a1e-8035-880b-e38cefc2f3ef"
+      parent_type: "database"
+      title: "다국어 SEO 감사 - example.com (2025-01-15)"
+      properties:
+        Site:
+          url: "https://example.com"
+        Category:
+          select:
+            name: "International SEO"
+        Priority:
+          select:
+            name: "High"
+        Found Date:
+          date:
+            start: "2025-01-15"
+        Audit ID:
+          rich_text:
+            - text:
+                content: "INTL-20250115-001"
+```
+
+## Language Guidelines
+
+- Report content in Korean (한국어)
+- Keep technical English terms as-is (hreflang, x-default, ccTLD, subdomain)
+- URLs and code remain unchanged

custom-skills/26-seo-international/desktop/tools/websearch.md

@@ -0,0 +1,40 @@
+# WebSearch
+
+## Purpose
+
+Search the web for current international SEO best practices, hreflang implementation guides, and regional search engine requirements.
+
+## Common Search Queries
+
+### Hreflang Best Practices
+```
+WebSearch: "hreflang implementation best practices 2025"
+WebSearch: "hreflang common errors fix"
+WebSearch: "x-default hreflang when to use"
+```
+
+### Regional Search Engines
+```
+WebSearch: "Naver SEO requirements Korean websites"
+WebSearch: "Baidu SEO China market entry"
+WebSearch: "Yahoo Japan SEO vs Google Japan"
+```
+
+### International URL Structure
+```
+WebSearch: "ccTLD vs subdomain vs subdirectory international SEO"
+WebSearch: "Google recommendations international targeting"
+```
+
+### Korean Market Expansion
+```
+WebSearch: "Korean business international SEO Japan market"
+WebSearch: "CJK URL encoding SEO best practices"
+```
+
+## Usage Pattern
+
+1. Search for domain-specific international SEO intelligence
+2. Verify current Google documentation on hreflang
+3. Research regional search engine requirements for target markets
+4. Find competitor international SEO strategies