diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 376a5738a4..187a9c3f28 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -15,13 +15,33 @@ pr:
     - prerelease
     - main
   paths:
+    # Exclude paths and files which do not cause functional changes to the C# extension and do not impact CI.
     exclude:
-    - '*.md'
-    - 'version.json'
+    # Changes to these configuration files are not functional changes.
+    - .azuredevops/*
+    - .config/*
+    - .devcontainer/*
     - .github/*
+    - .vscode/*
+    # The following pipelines are not run for PRs and changes should be validated by a separate run of the pipeline.
+    - azure-pipelines/dotnet-vscode-csharp-insertion.yml
+    - azure-pipelines/loc.yml
     - azure-pipelines/release.yml
-    - CHANGELOG.
+    - azure-pipelines/profiling.yml
+    - azure-pipelines/publish-roslyn-copilot.yml
+    # Changes to documentation are not functional changes.
+    - docs/*
+    - images/*
+    - RuntimeLicenses/*
+    # Changes to language bundles are not functional changes. We still run CI when `l10n/bundle.l10n.json` itself is changed.
     - 'l10n/bundle.l10n.*.json'
+    # Changes to the color themes are not functional changes.
+    - themes/*
+    # Changes to documentation are not functional changes.
+    - '**.md'
+    - CODEOWNERS
+    # Changes to the vesion is not a functional change. The extension version is updated by the branch-snap GH action.
+    - 'version.json'
 
 # Run a scheduled build every night on main to run tests against insiders VSCode.
 # The variable testVSCodeVersion is set to insiders based on the build reason.