docs: add Zadig&Voltaire case study + awesome-claude-skills taxonomy

- Ecosystem: Zadig&Voltaire migration path (Cursor → Windsurf → Claude Code)
  with team productivity data (7 → 27 MRs/week, 4x acceleration)
  Source: Benjamin Calef, tech.zadig-et-voltaire.com (Feb 2026)
- Ecosystem: awesome-claude-skills (BehiSecc) - 62 skills across 12 categories
  Evaluation: 3/5, complementary to awesome-claude-code

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Documentation
+
+- **Ecosystem**: Added awesome-claude-skills (BehiSecc) to curated lists
+  - 62 skills taxonomy across 12 categories (Development, Design, Documentation, Testing, DevOps, Security, Data, AI/ML, Productivity, Content, Integration, Fun)
+  - Positioned as complementary to awesome-claude-code (skills-only focus vs full ecosystem)
+  - Distinct from ComposioHQ/awesome-claude-skills (different maintainer, taxonomy approach)
+  - Referenced in guide section 8.5 (line 9721), Further Reading (line 17520), README.md, reference.yaml
+  - Evaluation: `docs/resource-evaluations/awesome-claude-skills-github.md` (score 3/5)
+
 ## [3.23.2] - 2026-02-08
 
 ### Documentation

README.md

@@ -339,6 +339,7 @@ Same agentic capabilities as Claude Code, but through a visual interface with no
 | [anthropics/claude-plugins-official](https://skills.sh/anthropics/claude-plugins-official) | Plugin dev tools (3.1K installs) | CLAUDE.md audit, automation discovery |
 | [skills.sh](https://skills.sh/) | Skills marketplace | One-command install (Vercel Labs) |
 | [awesome-claude-code](https://github.com/hesreallyhim/awesome-claude-code) | Curation | Resource discovery |
+| [awesome-claude-skills](https://github.com/BehiSecc/awesome-claude-skills) | Skills taxonomy | 62 skills across 12 categories |
 | [AI Coding Agents Matrix](https://coding-agents-matrix.dev) | Technical comparison | Comparing 23+ alternatives |
 
 **Community**: 🇫🇷 [Dev With AI](https://www.devw.ai/) — 1500+ devs on Slack, meetups in Paris, Bordeaux, Lyon

guide/ai-ecosystem.md

@@ -1235,6 +1235,23 @@ claude "Review my changes and suggest tests"
 # Claude reviews diff, generates comprehensive tests
 ```
 
+### Real-World Migration Path: Cursor → Windsurf → Claude Code
+
+> **Source**: [Zadig&Voltaire Engineering Blog](https://tech.zadig-et-voltaire.com/blog/migration-nuxt/) — Benjamin Calef, Feb 2026
+
+A 6-person team at Zadig&Voltaire documented their sequential tool adoption during a 6-month e-commerce rebuild (July 2025 – January 2026):
+
+| Phase | Tool | Observation |
+|-------|------|-------------|
+| July 2025 | Cursor | Co-building workflow, inline suggestions |
+| Aug 2025 | Windsurf | Similar paradigm, slightly different UX |
+| Aug 2025 | **Claude Code** | Contextual understanding of entire codebase — pivot moment |
+| Nov 2025 | Claude Opus 4.5 | Model comprehension leap, reliable code generation |
+
+The team reported the pivot to Claude Code was driven by **codebase-level context** rather than file-level editing. They then integrated custom skills (`zv-commit`, `zv-code-review`, `zv-jira`, `zv-jira-qa`) and community skills from [skills.sh](https://skills.sh/) to standardize their workflows.
+
+**Caveat**: Performance gains reported (-33% LOC, -63% LCP) are primarily attributable to the Nuxt 3 migration itself, not the AI tooling. The tool migration path is the transferable insight.
+
 ### Cursor-Specific Integration
 
 Cursor's `.cursor/rules` can mirror your CLAUDE.md:
@@ -2164,6 +2181,38 @@ External resources from experienced practitioners that validate and extend the p
 
 **Language note**: Original article in French; concepts and quotes translated for this guide.
 
+### Zadig&Voltaire Engineering (Benjamin Calef)
+
+**URL**: [tech.zadig-et-voltaire.com/blog/migration-nuxt/](https://tech.zadig-et-voltaire.com/blog/migration-nuxt/)
+
+**Author credentials**:
+- Technical Project Manager at Zadig&Voltaire (luxury fashion e-commerce)
+- Led 6-person team through complete frontend migration (July 2025 – January 2026)
+- Published: February 2, 2026
+
+**Content summary**: First external (non-Anthropic) team productivity data with a temporal adoption curve. During a Vue Storefront → Nuxt 3 migration, the team tracked AI-assisted merge request velocity across 6 months:
+
+| Month | MRs/week | AI-assisted |
+|-------|----------|-------------|
+| July 2025 | ~7 | 30% |
+| Nov 2025 | ~15 | 70% |
+| Jan 2026 | ~27 | 90%+ |
+
+**4x acceleration** over 6 months, with AI assistance growing from 30% to 90%+.
+
+**Alignment with this guide**:
+
+| Z&V Insight | This Guide Reference |
+|-------------|---------------------|
+| Tool migration path | IDE-Based Tools (Section 6 above) |
+| Orchestrator mindset shift | Mental Model (ultimate-guide.md:2360) |
+| Custom skills in production | Skills (Section 5.5 in ultimate-guide.md) |
+| Team-wide adoption curve | Adoption Approaches (adoption-approaches.md) |
+
+**Value**: Complements Anthropic's internal metrics (+67% PRs/engineer/day) with **external team data** showing a progressive adoption trajectory. The temporal dimension (30% → 90% over 6 months) is unique — most case studies report before/after snapshots, not the journey.
+
+**Caveat**: Performance metrics reported (-63% LCP, -33% LOC) are attributable to the Nuxt 3 migration, not Claude Code. The productivity trajectory is the transferable insight. Article is self-published by the team (no third-party validation).
+
 ---
 
 ## 11.3 Skills Distribution Platforms

guide/ultimate-guide.md

@@ -9718,6 +9718,7 @@ The Claude Code plugin ecosystem has grown significantly. Here are verified comm
 
 - [awesome-claude-code](https://github.com/hesreallyhim/awesome-claude-code) (20k+ stars) - Commands, templates, plugins
 - [awesome-claude-code-plugins](https://github.com/ccplugins/awesome-claude-code-plugins) - Plugin-focused curation
+- [awesome-claude-skills](https://github.com/BehiSecc/awesome-claude-skills) (5.5k stars) - Skills-only taxonomy (62 skills across 12 categories)
 
 > **Source**: Stats from [claude-plugins.dev](https://claude-plugins.dev), [Firecrawl analysis](https://www.firecrawl.dev/blog/best-claude-code-plugins) (Jan 2026). Counts evolve rapidly.
 
@@ -17517,6 +17518,7 @@ The Claude Code ecosystem is growing rapidly. Here are curated resources to cont
 |------------|-------|
 | [awesome-claude-code](https://github.com/hesreallyhim/awesome-claude-code) | Commands, workflows, IDE integrations |
 | [awesome-claude-skills](https://github.com/ComposioHQ/awesome-claude-skills) | Custom skills collection |
+| [awesome-claude-skills (BehiSecc)](https://github.com/BehiSecc/awesome-claude-skills) | Skills taxonomy (62 skills, 12 categories) |
 | [awesome-claude](https://github.com/alvinunreal/awesome-claude) | General Claude resources (SDKs, tools) |
 
 #### Frameworks

machine-readable/reference.yaml

@@ -1001,6 +1001,15 @@ ecosystem:
     awesome_claude_code:
       url: "github.com/hesreallyhim/awesome-claude-code"
       focus: "Curation - Discover & link"
+    awesome_claude_skills:
+      url: "github.com/BehiSecc/awesome-claude-skills"
+      maintainer: "BehiSecc"
+      focus: "Skills taxonomy - 62 skills across 12 categories"
+      categories: ["Development", "Design", "Documentation", "Testing", "DevOps", "Security", "Data", "AI/ML", "Productivity", "Content", "Integration", "Fun"]
+      positioning: "Complementary to awesome-claude-code (skills-only vs full ecosystem)"
+      evaluation: "docs/resource-evaluations/awesome-claude-skills-github.md"
+      score: "3/5 (Moderate - Useful complement)"
+      note: "Distinct from ComposioHQ/awesome-claude-skills (different maintainer, taxonomy approach)"
     claude_code_everything:
       url: "github.com/wesammustafa/Claude-Code-Everything"
       focus: "Visual walkthrough - Screenshots, BMAD method"