diff --git a/sync-templates/.github/linters/.cspell.yml b/sync-templates/.github/linters/.cspell.yml
index 33ea8b6..5497a5d 100644
--- a/sync-templates/.github/linters/.cspell.yml
+++ b/sync-templates/.github/linters/.cspell.yml
@@ -130,6 +130,6 @@ ignorePaths:
   - "**/redirect/**"
   - "**/presentation-pack/**"
 
-# Only check markdown files (the workflow also restricts the glob to **/*.md).
+# Default to checking both Markdown and YAML. CI also passes an explicit glob.
 files:
-  - "**/*.md"
+  - "**/*.{md,yaml,yml}"
diff --git a/workflow-templates/spellcheck.yml b/workflow-templates/spellcheck.yml
index ffe241a..242d514 100644
--- a/workflow-templates/spellcheck.yml
+++ b/workflow-templates/spellcheck.yml
@@ -20,3 +20,7 @@ jobs:
     permissions:
       contents: read
       pull-requests: write
+    with:
+      # Check both Markdown docs and the embedded `description` fields in
+      # resource type YAML schemas (and other YAML docs in the repo).
+      glob: "**/*.{md,yaml,yml}"