@@ -26,7 +26,12 @@ Use this skill to create a new monthly RN file or add a mid-month update to an e
    ```
    This ensures Previews and Ongoing items from the previous month are already in main before you copy them forward.
 
-1. **Create the file** — copy previous month's `.md`, save with the new publication date (second Thursday of the month, unless something new needs to go out sooner)
+1. **Create the file** — copy previous month's `.md`, save with the new publication date (second Thursday of the month, unless something new needs to go out sooner). Update the frontmatter:
+   - `title`: update month and year
+   - `description`: semicolon-separated list of all `###` headings (without the `###` prefix) — this populates the RSS feed. Example:
+     ```
+     description: "Now Available: Hotel Service v4 accessViaMobile; Preview: New SSL Certificate for *.api.concursolutions.com"
+     ```
 2. **Clean up previous month's content:**
    - Delete all `### Now Available:` sections
    - Move `### Preview:` items from New This Month: API previews go to the **Previews table**; cert/infrastructure previews go to **## Ongoing** — keep the `### Preview:` prefix in both cases
@@ -42,6 +47,7 @@ Use this skill to create a new monthly RN file or add a mid-month update to an e
 ## Mid-month update
 
 1. Add new RN at the **top** of `## New This Month` — returning readers see it immediately
+2. **Update the frontmatter `description`** — prepend the new heading to the existing semicolon-separated list so the RSS feed reflects the latest update
 2. **Always confirm the heading prefix** before writing — if unclear, ask:
    - `### Now Available: [Name]` — feature is GA
    - `### Preview: [Name]` — feature is not yet GA
 
@@ -0,0 +1,23 @@
+name: Release Notes Description Check
+
+on:
+  pull_request:
+    paths:
+      - 'src/tools-support/release-notes/api/**.md'
+
+jobs:
+  check-description:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Check description field in release notes frontmatter
+        run: |
+          missing=0
+          for file in $(git diff --name-only origin/${{ github.base_ref }}...HEAD | grep 'src/tools-support/release-notes/api/[^/]*\.md$' | grep -v '/archive/'); do
+            if [ -f "$file" ] && ! grep -q '^description:' "$file"; then
+              echo "::error file=$file::Missing 'description:' in frontmatter. Add a semicolon-separated list of ### headings for the RSS feed."
+              missing=1
+            fi
+          done
+          exit $missing
@@ -1,7 +1,7 @@
 ---
 title: SAP Concur Developer Center - API Release Notes, July 2026
 layout: reference
-description: "New This Month:<br/>Preview: SSL Certificate Renewal for *.concursolutions.com, usg.concursolutions.com, and usg.api.concursolutions.com<br/>Preview: Additions to Guest Information and Shop Requests in Hotel Service v4<br/>Now Available: Legal Entity v4.1<br/>Ongoing:<br/>Important! Upcoming Shutdown of Request V1, V3, and V3.1<br/>Updated: Decommissioning of Launch External URL V1"
+description: "Preview: SSL Certificate Renewal for *.concursolutions.com, usg.concursolutions.com, and usg.api.concursolutions.com; Preview: Additions to Guest Information and Shop Requests in Hotel Service v4; Now Available: Legal Entity v4.1; Important! Upcoming Shutdown of Request V1, V3, and V3.1; Updated: Decommissioning of Launch External URL V1"
 ---
 # API Release Notes, July 2026
 
 
@@ -1,7 +1,7 @@
 ---
 title: SAP Concur Developer Center - API Release Notes, August 2026
 layout: reference
-description: "New This Month:<br/>Preview: New Client SSL Certificate for ESS webhook.api.concursolutions.com<br/>Now Available: Meetings API<br/>Preview: Detokenizer v5 – Get Banking Info API<br/>Important! Upcoming Shutdown of Request V1, V3, and V3.1<br/>Ongoing:<br/>Preview: SSL Certificate Renewal for *.concursolutions.com, usg.concursolutions.com, and usg.api.concursolutions.com"
+description: "Preview: New Client SSL Certificate for ESS webhook.api.concursolutions.com; Now Available: Meetings API; Preview: Detokenizer v5 – Get Banking Info API; Important! Upcoming Shutdown of Request V1, V3, and V3.1; Preview: SSL Certificate Renewal for *.concursolutions.com, usg.concursolutions.com, and usg.api.concursolutions.com"
 ---
 # API Release Notes, August 2026
 
 
@@ -1,7 +1,7 @@
 ---
 title: SAP Concur Developer Center - API Release Notes, September 2026
 layout: reference
-description: "New This Month:<br/>Deprecation: Latest Bookings and Opportunities<br/>Preview: New Client SSL Certificate for *.api.concursolutions.com<br/>Now Available: Hotel Service v4 — Traveler Title Field<br/>Now Available: New Client SSL Certificate for ESS webhook.api.concursolutions.com<br/>Ongoing:<br/>Important! Upcoming Shutdown of Request V1, V3, and V3.1"
+description: "Deprecation: Latest Bookings and Opportunities; Preview: New Client SSL Certificate for *.api.concursolutions.com; Now Available: Hotel Service v4 — Traveler Title Field; Now Available: New Client SSL Certificate for ESS webhook.api.concursolutions.com; Important! Upcoming Shutdown of Request V1, V3, and V3.1"
 ---
 # API Release Notes, September 2026
 
 
@@ -1,7 +1,7 @@
 ---
 title: SAP Concur Developer Center - API Release Notes, October 2026
 layout: reference
-description: "New This Month:<br/>Now Available: accessViaMobile Parameter in Hotel Service v4<br/>Now Available: France e-Invoicing Integration Guide<br/>Ongoing:<br/>Preview: New Client SSL Certificate for *.api.concursolutions.com<br/>Now Available: New Client SSL Certificate for ESS webhook.api.concursolutions.com<br/>Important! Upcoming Shutdown of Request V1, V3, and V3.1"
+description: "New This Month:<br/>Now Available: Spend Documents v4 — E-Receipt and Compliance Document Support<br/>Now Available: RSS Feed for API Release Notes<br/>Now Available: accessViaMobile Parameter in Hotel Service v4<br/>Now Available: France e-Invoicing Integration Guide<br/>Ongoing:<br/>Preview: New Client SSL Certificate for *.api.concursolutions.com<br/>Now Available: New Client SSL Certificate for ESS webhook.api.concursolutions.com<br/>Important! Upcoming Shutdown of Request V1, V3, and V3.1"
 ---
 # API Release Notes, October 2026