diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dad2551196..631602c5d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,9 +4,8 @@ on:
   push:
     branches: [main, release/*]
   pull_request:
-    branches:
-      - "main"
-      - "release/*"
+    branches: [main, release/*]
+    paths: [nexus/**]
 
 jobs:
   build:
diff --git a/.github/workflows/flow.yml b/.github/workflows/flow.yml
index 2ddff33bd0..578d751e12 100644
--- a/.github/workflows/flow.yml
+++ b/.github/workflows/flow.yml
@@ -2,8 +2,8 @@ name: Flow build and test
 
 on:
   pull_request:
-    branches:
-      - "main"
+    branches: [main]
+    paths: [flow/**]
   push:
     branches: [main]
 
diff --git a/.github/workflows/golang-lint.yml b/.github/workflows/golang-lint.yml
index 48a0510b20..5b4b31441d 100644
--- a/.github/workflows/golang-lint.yml
+++ b/.github/workflows/golang-lint.yml
@@ -2,8 +2,8 @@ name: GolangCI-Lint
 
 on:
   pull_request:
-    branches:
-      - "main"
+    branches: [main]
+    paths: [flow/**]
 
 jobs:
   golangci-lint:
diff --git a/.github/workflows/rust-lint.yml b/.github/workflows/rust-lint.yml
index 8a56cac05e..c4a43ad791 100644
--- a/.github/workflows/rust-lint.yml
+++ b/.github/workflows/rust-lint.yml
@@ -2,8 +2,8 @@ name: clippy-action
 
 on:
   pull_request:
-    branches:
-      - "main"
+    branches: [main]
+    paths: [nexus/**]
 
 jobs:
   clippy:
diff --git a/.github/workflows/ui-build.yml b/.github/workflows/ui-build.yml
index ec59e13969..752bb9bd7f 100644
--- a/.github/workflows/ui-build.yml
+++ b/.github/workflows/ui-build.yml
@@ -2,11 +2,10 @@ name: Build & Test UI
 
 on:
   push:
-    branches:
-      - main
+    branches: [main]
   pull_request:
-    branches:
-      - main
+    branches: [main]
+    paths: [ui/**]
 
 jobs:
   build-test:
diff --git a/.github/workflows/ui-lint.yml b/.github/workflows/ui-lint.yml
index 84fe76b0bc..48428e1572 100644
--- a/.github/workflows/ui-lint.yml
+++ b/.github/workflows/ui-lint.yml
@@ -2,11 +2,10 @@ name: Lint UI
 
 on:
   push:
-    branches:
-      - main
+    branches: [main]
   pull_request:
-    branches:
-      - main
+    branches: [main]
+    paths: [ui/**]
 
 permissions:
   checks: write