Fix metric display: use displayName in list, render HTML in modal

List view:
- Show display_name ("M1 + VFM Operational") instead of name ("M1PlusVFMOperational")
- Strip HTML and truncate description for clean list excerpts

Modal detail:
- Render original HTML from catalog instead of stripped plain text
- Add .om-description CSS class for structured HTML (bold labels, lists, code)
- Pass description_html alongside plain text description for backwards compat

connectors/openmetadata/transformer.py

@@ -319,6 +319,7 @@ def metric_to_display_dict(raw_metric: Dict[str, Any]) -> Dict[str, Any]:
     Parse raw OpenMetadata metric for metric list display in webapp.
 
     Returns a lightweight dict for listing metrics (not full detail).
+    Description is stripped of HTML and truncated for list view.
 
     Args:
         raw_metric: Raw metric dict from OpenMetadata API
@@ -332,10 +333,15 @@ def metric_to_display_dict(raw_metric: Dict[str, Any]) -> Dict[str, Any]:
     description = raw_metric.get("description", "") or ""
     tags = raw_metric.get("tags", [])
 
+    # Strip HTML and truncate for list excerpt
+    clean_desc = strip_html(description)
+    if len(clean_desc) > 150:
+        clean_desc = clean_desc[:147] + "..."
+
     return {
         "name": name,
         "display_name": display_name,
-        "description": description,
+        "description": clean_desc,
         "grain": extract_grain(raw_metric),
         "category": extract_category(tags),
         "path": f"catalog:{fqn}",
@@ -376,6 +382,7 @@ def metric_to_detail_dict(raw_metric: Dict[str, Any], category_colors: Optional[
         },
         "overview": {
             "description": strip_html(description),
+            "description_html": description,
             "key_insights": [],
         },
         "validation": None,

webapp/app.py

@@ -829,7 +829,7 @@ def _build_om_metric_detail(raw_metric: dict) -> dict:
         "category": category,
         "category_color": category_colors.get(category, "#6B7280"),
         "metadata": {"type": metric_type, "unit": unit, "grain": grain, "time_column": ""},
-        "overview": {"description": description.strip(), "key_insights": []},
+        "overview": {"description": description.strip(), "description_html": description.strip(), "key_insights": []},
         "validation": None,
         "dimensions": dimensions,
         "notes": {"all": [], "key_insights": []},

webapp/static/css/metric_modal.css

@@ -330,6 +330,46 @@
     font-weight: 500;
 }
 
+/* OpenMetadata HTML description (rendered from catalog) */
+.om-description {
+    font-size: 15px;
+    line-height: 1.7;
+    color: #374151;
+}
+
+.om-description p {
+    margin: 0 0 12px 0;
+}
+
+.om-description p:last-child {
+    margin-bottom: 0;
+}
+
+.om-description strong {
+    color: #111827;
+    font-weight: 600;
+}
+
+.om-description ul,
+.om-description ol {
+    margin: 8px 0 12px 0;
+    padding-left: 24px;
+}
+
+.om-description li {
+    margin-bottom: 4px;
+    line-height: 1.6;
+}
+
+.om-description code {
+    background: #F3F4F6;
+    color: #0073D1;
+    padding: 2px 6px;
+    border-radius: 3px;
+    font-family: 'Monaco', 'Menlo', monospace;
+    font-size: 13px;
+}
+
 /* Dimension Pills */
 .metric-dimensions {
     display: flex;

webapp/static/js/metric_modal.js

@@ -148,12 +148,17 @@ function renderMetricModal(data) {
 function renderOverviewTab(data) {
     const keyInsights = data.notes.key_insights || data.notes.all.slice(0, 5);
 
+    // Prefer rendered HTML from catalog over stripped plain text
+    const descriptionContent = data.overview.description_html
+        ? `<div class="om-description">${data.overview.description_html}</div>`
+        : `<p>${escapeHtml(data.overview.description)}</p>`;
+
     return `
         <div id="tabOverview" class="metric-tab-content">
             <div class="metric-section">
                 <h3 class="metric-section-header">What it measures</h3>
                 <div class="metric-section-content">
-                    <p>${data.overview.description}</p>
+                    ${descriptionContent}
                 </div>
             </div>
 

webapp/templates/catalog.html

@@ -1415,7 +1415,7 @@
                     {% for metric in category.metrics %}
                     <div class="table-row" onclick="openMetricModal('{{ metric.path }}')">
                         <div class="table-row-left">
-                            <div class="table-row-name">{{ metric.name }}</div>
+                            <div class="table-row-name">{{ metric.display_name }}</div>
                             <div class="table-row-desc">{{ metric.description }}</div>
                         </div>
                         <div class="table-row-right">