diff --git a/.vsts-ci/linux.yml b/.vsts-ci/linux.yml
index 943487560e9..e5bb9bfc957 100644
--- a/.vsts-ci/linux.yml
+++ b/.vsts-ci/linux.yml
@@ -1,4 +1,26 @@
 name: PR-$(System.PullRequest.PullRequestNumber)-$(Date:yyyyMMdd)$(Rev:.rr)
+trigger:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
+pr:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
 variables:
   DOTNET_CLI_TELEMETRY_OPTOUT: 1
   POWERSHELL_TELEMETRY_OPTOUT: 1
diff --git a/.vsts-ci/mac.yml b/.vsts-ci/mac.yml
index 51bbefc5669..8c0562318b5 100644
--- a/.vsts-ci/mac.yml
+++ b/.vsts-ci/mac.yml
@@ -1,4 +1,26 @@
 name: PR-$(System.PullRequest.PullRequestNumber)-$(Date:yyyyMMdd)$(Rev:.rr)
+trigger:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
+pr:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
 variables:
   DOTNET_CLI_TELEMETRY_OPTOUT: 1
   POWERSHELL_TELEMETRY_OPTOUT: 1
diff --git a/.vsts-ci/spelling.yml b/.vsts-ci/spelling.yml
index 2c7b6047abf..b6868b97f17 100644
--- a/.vsts-ci/spelling.yml
+++ b/.vsts-ci/spelling.yml
@@ -1,4 +1,20 @@
 name: PR-$(System.PullRequest.PullRequestNumber)-$(Date:yyyyMMdd)$(Rev:.rr)
+trigger:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*.md'
+pr:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*.md'
 
 resources:
 - repo: self
diff --git a/.vsts-ci/windows.yml b/.vsts-ci/windows.yml
index bf26369a1f8..d926bded093 100644
--- a/.vsts-ci/windows.yml
+++ b/.vsts-ci/windows.yml
@@ -1,4 +1,26 @@
 name: PR-$(System.PullRequest.PullRequestNumber)-$(Date:yyyyMMdd)$(Rev:.rr)
+trigger:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
+pr:
+  branches:
+    include:
+    - master
+    - release*
+  paths:
+    include:
+    - '*'
+    exclude:
+    - /tools/releaseBuild/**/*
+    - /.vsts-ci/spelling.yml
 queue:
   name: Hosted VS2017
   parallel: 2 # Limit to two agents at a time