diff --git a/scripts/seed-curated-design-skills.ts b/scripts/seed-curated-design-skills.ts
index 554b296b6..03a5e99ec 100644
--- a/scripts/seed-curated-design-skills.ts
+++ b/scripts/seed-curated-design-skills.ts
@@ -830,12 +830,12 @@ const CATALOGUE: CuratedSkill[] = [
   {
     id: 'd3-visualization',
     description:
-      'Teaches the agent to produce D3 charts and interactive data visualizations. Useful for editorial dashboards, reports, and explanatory graphics.',
-    triggers: ['d3', 'd3.js', 'interactive chart', 'data visualization', 'editorial chart'],
+      'Teaches the agent to produce D3 charts and interactive data visualizations. A comprehensive D3.js skill with examples across chart types and techniques giving the agent expert-level knowledge to generate complex, interactive visualizations. Useful for editorial dashboards, reports, data-rich prototypes, and explanatory graphics.',
+    triggers: ['d3', 'd3.js', 'interactive chart', 'data visualization', 'editorial chart', 'd3 bar chart', 'd3 line chart', 'd3 map', 'd3 force graph', 'd3 sankey', 'd3 treemap', 'd3 sunburst', 'd3 choropleth', 'd3 animation', 'd3 scroll', 'snow-d3'],
     mode: 'prototype',
     category: 'diagrams',
-    upstream: 'https://github.com/chrisvoncsefalvay/d3-claude-skill',
-    attribution: 'Curated from @chrisvoncsefalvay.',
+    upstream: 'https://github.com/jiannanya/snow-d3/',
+    attribution: 'Curated from @jiannanya.',
   },
   {
     id: 'hand-drawn-diagrams',
diff --git a/skills/d3-visualization/SKILL.md b/skills/d3-visualization/SKILL.md
index 1346b374a..6e702022d 100644
--- a/skills/d3-visualization/SKILL.md
+++ b/skills/d3-visualization/SKILL.md
@@ -1,43 +1,62 @@
 ---
 name: d3-visualization
 description: |
-  Teaches the agent to produce D3 charts and interactive data visualizations. Useful for editorial dashboards, reports, and explanatory graphics.
+  Teaches the agent to produce D3 charts and interactive data visualizations. A comprehensive D3.js skill with examples across chart types and techniques giving the agent expert-level knowledge to generate complex, interactive visualizations. Useful for editorial dashboards, reports, data-rich prototypes, and explanatory graphics.
 triggers:
   - "d3"
   - "d3.js"
   - "interactive chart"
   - "data visualization"
   - "editorial chart"
+  - "d3 bar chart"
+  - "d3 line chart"
+  - "d3 map"
+  - "d3 force graph"
+  - "d3 sankey"
+  - "d3 treemap"
+  - "d3 sunburst"
+  - "d3 choropleth"
+  - "d3 animation"
+  - "d3 scroll"
+  - "snow-d3"
 od:
   mode: prototype
   category: diagrams
-  upstream: "https://github.com/chrisvoncsefalvay/d3-claude-skill"
+  upstream: "https://github.com/jiannanya/snow-d3/"
 ---
 
 # d3-visualization
 
-> Curated from @chrisvoncsefalvay.
+> Curated from @jiannanya.
 
 ## What it does
 
-Teaches the agent to produce D3 charts and interactive data visualizations. Useful for editorial dashboards, reports, and explanatory graphics.
+Teaches the agent to produce D3 charts and interactive data visualizations. A comprehensive D3.js skill with examples across chart types and techniques giving the agent expert-level knowledge to generate complex, interactive visualizations. Useful for editorial dashboards, reports, data-rich prototypes, and explanatory graphics.
 
 ## Source
 
-- Upstream: https://github.com/chrisvoncsefalvay/d3-claude-skill
+- Upstream: https://github.com/jiannanya/snow-d3/
 - Category: `diagrams`
 
 ## How to use
 
 This catalogue entry advertises the skill in Open Design so the agent
 discovers it during planning. To run the full upstream workflow with
-its original assets, scripts, and references, install the upstream
+its original assets, scripts, and reference documents, install the upstream
 bundle into your active agent's skills directory:
 
 ```bash
 # Inspect the upstream README for exact paths
-open https://github.com/chrisvoncsefalvay/d3-claude-skill
+open https://github.com/jiannanya/snow-d3/
+
+# Clone or copy the snow-d3/ folder into your workspace's skills/ directory
+git clone https://github.com/jiannanya/snow-d3.git skills/snow-d3
+
 ```
 
 Then ask the agent to invoke this skill by name (`d3-visualization`) or with
-one of the trigger phrases listed in this skill's frontmatter.
+one of the trigger phrases listed in this skill's frontmatter, e.g.:
+
+> "Create a zoomable treemap for my sales data"
+> "Build a force-directed network graph like example 07 but for my own dataset"
+> "Generate a calendar heatmap in D3"