diff --git a/.github/workflows/build-cache.yml b/.github/workflows/build-cache.yml
index 5b3fb374ea..62429be59d 100644
--- a/.github/workflows/build-cache.yml
+++ b/.github/workflows/build-cache.yml
@@ -6,9 +6,7 @@ name: Build Cache
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/doc-link-checker.yml b/.github/workflows/doc-link-checker.yml
index ee42621899..a79a748962 100644
--- a/.github/workflows/doc-link-checker.yml
+++ b/.github/workflows/doc-link-checker.yml
@@ -3,9 +3,7 @@ name: Doc Link Checker
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
     paths:
       - "README.md"
   pull_request:
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 479e63c95e..6021b8234c 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -3,9 +3,7 @@ name: Docs
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/fmt.yml b/.github/workflows/fmt.yml
index bde48ad92f..a02cd22a53 100644
--- a/.github/workflows/fmt.yml
+++ b/.github/workflows/fmt.yml
@@ -3,9 +3,7 @@ name: Format Check
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index a7390e06c8..c981e42ac6 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -6,9 +6,7 @@ name: Go
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/llgo.yml b/.github/workflows/llgo.yml
index e8e34e6854..ce6886bfe8 100644
--- a/.github/workflows/llgo.yml
+++ b/.github/workflows/llgo.yml
@@ -6,9 +6,7 @@ name: LLGo
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
@@ -180,7 +178,7 @@ jobs:
   test:
     name: test (${{ matrix.lane }}, ${{ matrix.os }}, LLVM ${{ matrix.llvm }}, Go ${{ matrix.go }}, shard ${{ matrix.shard }})
     continue-on-error: ${{ matrix.lane == 'compatibility' }}
-    timeout-minutes: 30
+    timeout-minutes: ${{ startsWith(matrix.os, 'macos') && 45 || 30 }}
     strategy:
       matrix:
         # Keep compatibility and primary toolchains pinned to exact patches.
diff --git a/.github/workflows/release-build.yml b/.github/workflows/release-build.yml
index b1bf00ff9b..7f367be4d4 100644
--- a/.github/workflows/release-build.yml
+++ b/.github/workflows/release-build.yml
@@ -3,10 +3,9 @@ name: Release Build
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
-    tags: ["*"]
+      - main
+    tags:
+      - "*"
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/stdlib-coverage.yml b/.github/workflows/stdlib-coverage.yml
index f3ae6fbb0b..8aa81e6151 100644
--- a/.github/workflows/stdlib-coverage.yml
+++ b/.github/workflows/stdlib-coverage.yml
@@ -3,9 +3,7 @@ name: Stdlib Coverage
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]
 
diff --git a/.github/workflows/targets.yml b/.github/workflows/targets.yml
index 6eed98a333..49ce34aa6c 100644
--- a/.github/workflows/targets.yml
+++ b/.github/workflows/targets.yml
@@ -3,9 +3,7 @@ name: Targets
 on:
   push:
     branches:
-      - "**"
-      - "!dependabot/**"
-      - "!xgopilot/**"
+      - main
   pull_request:
     branches: ["**"]