diff --git a/.github/workflows/coverage-nightly.yml b/.github/workflows/coverage-nightly.yml
index 17a1421f08..71eaefabf3 100644
--- a/.github/workflows/coverage-nightly.yml
+++ b/.github/workflows/coverage-nightly.yml
@@ -28,8 +28,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/cut-rc.yml b/.github/workflows/cut-rc.yml
index 3e30eb7fe0..dca1b20c0e 100644
--- a/.github/workflows/cut-rc.yml
+++ b/.github/workflows/cut-rc.yml
@@ -339,11 +339,8 @@ jobs:
           # hotcrm@v1.2.0, whose manifest pins engines.node >=22.
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 1daf4e2f80..984ae80723 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -56,8 +56,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
@@ -2496,11 +2496,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
@@ -3072,11 +3069,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
@@ -3249,11 +3243,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
@@ -3443,11 +3434,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/pr-automation.yml b/.github/workflows/pr-automation.yml
index 377c3c16f4..8bac9e88c3 100644
--- a/.github/workflows/pr-automation.yml
+++ b/.github/workflows/pr-automation.yml
@@ -423,11 +423,11 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
+      - name: Setup pnpm
         if: >-
           steps.labels.outputs.skip != 'true'
           && steps.diffbase.outputs.base_error == ''
-        run: corepack enable
+        uses: ./.github/actions/setup-pnpm
 
       - name: Install dependencies
         if: >-
diff --git a/.github/workflows/publish-smoke.yml b/.github/workflows/publish-smoke.yml
index e90b547346..4b1fb35302 100644
--- a/.github/workflows/publish-smoke.yml
+++ b/.github/workflows/publish-smoke.yml
@@ -191,8 +191,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f4d12d808d..388cb68e83 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -274,11 +274,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
@@ -507,9 +504,9 @@ jobs:
 
       # Everything below is skipped on the overwhelmingly common path (nothing to
       # repair), which is why the install is here rather than at the top of the job.
-      - name: Enable Corepack
+      - name: Setup pnpm
         if: steps.audit.outputs.releases-missing == 'true'
-        run: corepack enable
+        uses: ./.github/actions/setup-pnpm
 
       - name: Install dependencies
         if: steps.audit.outputs.releases-missing == 'true'
@@ -670,11 +667,8 @@ jobs:
             echo "  see the run's deployment history for the reviewer and timestamp"
           } >> "$GITHUB_STEP_SUMMARY"
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/rerun-safety-nightly.yml b/.github/workflows/rerun-safety-nightly.yml
index 94bb917d07..5ff48d2837 100644
--- a/.github/workflows/rerun-safety-nightly.yml
+++ b/.github/workflows/rerun-safety-nightly.yml
@@ -54,8 +54,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/scaffold-e2e.yml b/.github/workflows/scaffold-e2e.yml
index cad80c886d..1097bade31 100644
--- a/.github/workflows/scaffold-e2e.yml
+++ b/.github/workflows/scaffold-e2e.yml
@@ -52,8 +52,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/.github/workflows/spec-liveness-check.yml b/.github/workflows/spec-liveness-check.yml
index 5c7a5f8b2d..a8a2251c8e 100644
--- a/.github/workflows/spec-liveness-check.yml
+++ b/.github/workflows/spec-liveness-check.yml
@@ -45,8 +45,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
diff --git a/.github/workflows/validate-deps.yml b/.github/workflows/validate-deps.yml
index 914cb4aff7..55116f1d4b 100644
--- a/.github/workflows/validate-deps.yml
+++ b/.github/workflows/validate-deps.yml
@@ -39,11 +39,8 @@ jobs:
         with:
           node-version: '22'
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Verify pnpm version
-        run: pnpm --version
+      - name: Setup pnpm
+        uses: ./.github/actions/setup-pnpm
 
       - name: Get pnpm store directory
         shell: bash