Update README, AGENTS, CLAUDE docs for 12 new SEO skills

- Update skill count from 38 to 50 across all docs
- Add skills 19-28, 31-32 to README SEO table
- Remove "Future SEO Skills (19-28 reserved)" placeholder
- Update AGENTS.md SEO section with slash commands and Ahrefs integration notes
- Update directory listing from "11-30" to "11-32"

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

AGENTS.md

@@ -115,13 +115,15 @@ Task 2: general-purpose - "Implement the planned skill"  # Needs Task 1 result
 
 ## Domain-Specific Routing
 
-### SEO Skills (11-30)
+### SEO Skills (11-32)
 
-- Use **seo-advisor** agent for SEO strategy questions
 - Use **Explore** to understand existing SEO script patterns
-- Python scripts in these skills follow `base_client.py` patterns
+- Python scripts in these skills follow `base_client.py` patterns (RateLimiter, ConfigManager, BaseAsyncClient)
 - `11-seo-comprehensive-audit` orchestrates skills 12-18 for unified audits
-- Skills 19-28 are reserved for future SEO capabilities
+- Skills 19-28 provide advanced SEO capabilities (keyword strategy, SERP analysis, position tracking, link building, content strategy, e-commerce, KPI framework, international SEO, AI visibility, knowledge graph)
+- Skills 31-32 cover competitor intelligence and crawl budget optimization
+- All SEO skills integrate with Ahrefs MCP tools and output to the Notion SEO Audit Log database
+- Slash commands available: `/seo-keyword-strategy`, `/seo-serp-analysis`, `/seo-position-tracking`, `/seo-link-building`, `/seo-content-strategy`, `/seo-ecommerce`, `/seo-kpi-framework`, `/seo-international`, `/seo-ai-visibility`, `/seo-knowledge-graph`, `/seo-competitor-intel`, `/seo-crawl-budget`
 
 ### GTM Skills (60-69)
 
@@ -200,7 +202,7 @@ For long-running tasks, use `run_in_background: true`:
 
 ```
 # Good candidates for background execution:
-- Full skill audit across all 23 skills
+- Full skill audit across all 50 skills
 - Running Python tests on multiple skills
 - Generating comprehensive documentation