docs: update all documentation for snowflake-development (29→30)

- CLAUDE.md: engineering-team 29→30
- engineering-team/CLAUDE.md: add snowflake-development, 29→30
- marketplace.json: engineering-skills 29→30
- docs/getting-started.md: Engineering Core bundle 29→30
- docs/index.md: Engineering Core card 29→30

Official skill count remains 205.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -82,7 +82,7 @@
     {
       "name": "engineering-skills",
       "source": "./engineering-team",
-      "description": "29 engineering skills: architecture, frontend, backend, fullstack, QA, DevOps, security, AI/ML, data engineering, Playwright (9 sub-skills), self-improving agent, Stripe integration, TDD guide, tech stack evaluator, Google Workspace CLI, a11y audit (WCAG 2.2), Azure cloud architect, GCP cloud architect, security pen testing.",
+      "description": "30 engineering skills: architecture, frontend, backend, fullstack, QA, DevOps, security, AI/ML, data engineering, Playwright (9 sub-skills), self-improving agent, Stripe integration, TDD guide, tech stack evaluator, Google Workspace CLI, a11y audit (WCAG 2.2), Azure cloud architect, GCP cloud architect, security pen testing, Snowflake development.",
       "version": "2.1.2",
       "author": {
         "name": "Alireza Rezvani"

CLAUDE.md

@@ -38,7 +38,7 @@ claude-code-skills/
 ├── .claude-plugin/            # Plugin registry (marketplace.json)
 ├── agents/                    # 16 cs-* prefixed agents across all domains
 ├── commands/                  # 19 slash commands (changelog, tdd, saas-health, prd, code-to-prd, plugin-audit, sprint-plan, etc.)
-├── engineering-team/          # 29 core engineering skills + Playwright Pro + Self-Improving Agent + A11y Audit
+├── engineering-team/          # 30 core engineering skills + Playwright Pro + Self-Improving Agent + A11y Audit
 ├── engineering/               # 35 POWERFUL-tier advanced skills (incl. AgentHub)
 ├── product-team/              # 13 product skills + Python tools
 ├── marketing-skill/           # 43 marketing skills (7 pods) + Python tools

docs/getting-started.md

@@ -140,7 +140,7 @@ Choose your platform and follow the steps:
 
 | Bundle | Install Command | Skills |
 |--------|----------------|--------|
-| **Engineering Core** | `/plugin install engineering-skills@claude-code-skills` | 29 |
+| **Engineering Core** | `/plugin install engineering-skills@claude-code-skills` | 30 |
 | **Engineering POWERFUL** | `/plugin install engineering-advanced-skills@claude-code-skills` | 35 |
 | **Product** | `/plugin install product-skills@claude-code-skills` | 14 |
 | **Marketing** | `/plugin install marketing-skills@claude-code-skills` | 43 |

docs/index.md

@@ -135,7 +135,7 @@ hide:
 
     Architecture, frontend, backend, fullstack, QA, DevOps, SecOps, AI/ML, data engineering, Playwright testing, self-improving agent
 
-    [:octicons-arrow-right-24: 29 skills](skills/engineering-team/)
+    [:octicons-arrow-right-24: 30 skills](skills/engineering-team/)
 
 -   :material-lightning-bolt:{ .lg .middle } **Engineering — Advanced**
 

engineering-team/CLAUDE.md

@@ -1,6 +1,6 @@
 # Engineering Team Skills - Claude Code Guidance
 
-This guide covers the 29 production-ready engineering skills and their Python automation tools.
+This guide covers the 30 production-ready engineering skills and their Python automation tools.
 
 ## Engineering Skills Overview
 
@@ -13,6 +13,7 @@ This guide covers the 29 production-ready engineering skills and their Python au
 - **azure-cloud-architect** — Azure infrastructure design, ARM/Bicep templates, landing zones
 - **gcp-cloud-architect** — GCP infrastructure design, Terraform modules, cloud-native patterns
 - **security-pen-testing** — Penetration testing methodology, vulnerability assessment, exploit analysis
+- **snowflake-development** — Snowflake data warehouse development, SQL optimization, data pipeline patterns
 
 **AI/ML/Data (5 skills):**
 - senior-data-scientist, senior-data-engineer, senior-ml-engineer
@@ -292,7 +293,7 @@ services:
 ---
 
 **Last Updated:** March 18, 2026
-**Skills Deployed:** 29 engineering skills production-ready
+**Skills Deployed:** 30 engineering skills production-ready
 **Total Tools:** 39+ Python automation tools across core + AI/ML/Data + epic-design + a11y
 
 ---