diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
index dc5da06..a6ca973 100644
--- a/.github/workflows/actions.lock
+++ b/.github/workflows/actions.lock
@@ -4,39 +4,39 @@
 version: 'v0.0.2'
 workflows:
     '.github/workflows/boj-build.yml':
-        - 'actions/checkout@v7.0.1'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
     '.github/workflows/casket-pages.yml':
-        - 'actions/checkout@v7.0.1'
-        - 'actions/configure-pages@v6.0.0'
-        - 'actions/deploy-pages@v5.0.1'
-        - 'actions/upload-pages-artifact@v5.0.0'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
+        - 'actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d'
+        - 'actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346'
+        - 'actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9'
     '.github/workflows/codeql.yml':
-        - 'actions/checkout@v7.0.1'
-        - 'github/codeql-action@b96794f015dfd88f77b49b1c93e0fa7110f94c63'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
+        - 'github/codeql-action@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2'
     '.github/workflows/governance.yml':
-        - 'hyperpolymath/standards@81dbf2dd854b1444fd6236fa2352474383b2c2b9'
+        - 'hyperpolymath/standards@6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953'
     '.github/workflows/hypatia-scan.yml':
         - 'hyperpolymath/standards@81dbf2dd854b1444fd6236fa2352474383b2c2b9'
     '.github/workflows/instant-sync.yml':
-        - 'peter-evans/repository-dispatch@v4.0.1'
+        - 'peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697'
     '.github/workflows/label-triage.yml': []
     '.github/workflows/labels.yml': []
     '.github/workflows/lock-sync-gate.yml': []
     '.github/workflows/mirror.yml':
         - 'hyperpolymath/standards@0ef5917b3a6742dc69b6758b3e40a7beb8b97d04'
     '.github/workflows/pages.yml':
-        - 'actions/checkout@v7.0.1'
-        - 'actions/deploy-pages@v5.0.1'
-        - 'actions/upload-pages-artifact@v5.0.0'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
+        - 'actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346'
+        - 'actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9'
     '.github/workflows/push-email-notify.yml':
-        - 'hyperpolymath/smtp-notify-action@v0.3.0'
+        - 'hyperpolymath/smtp-notify-action@22e7bdb322c430c1d0dac6b3bb307f4bb139d0be'
     '.github/workflows/quality-gates.yml':
-        - 'actions/checkout@v7.0.1'
-        - 'dtolnay/rust-toolchain@v1'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
+        - 'dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de'
     '.github/workflows/secret-scanner.yml':
         - 'hyperpolymath/standards@c65436ee3351cd6b0fa14b142938b195efc77586'
     '.github/workflows/workflow-linter.yml':
-        - 'actions/checkout@v7.0.1'
+        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
 dependencies:
     'actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9':
         ref: '55cc8345863c7cc4c66a329aec7e433d2d1c52a9'
@@ -53,17 +53,12 @@ dependencies:
         commit: 'sha1-9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0'
         owner_id: 44036562
         repo_id: 197814629
-    'actions/checkout@v7.0.1':
-        ref: 'v7.0.1'
-        commit: 'sha1-3d3c42e5aac5ba805825da76410c181273ba90b1'
-        owner_id: 44036562
-        repo_id: 197814629
-    'actions/configure-pages@v6.0.0':
+    'actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d':
         ref: 'v6.0.0'
         commit: 'sha1-45bfe0192ca1faeb007ade9deae92b16b8254a0d'
         owner_id: 44036562
         repo_id: 513659658
-    'actions/deploy-pages@v5.0.1':
+    'actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346':
         ref: 'v5.0.1'
         commit: 'sha1-368f82528645a54fb793d4d04e342629a3f51346'
         owner_id: 44036562
@@ -78,7 +73,7 @@ dependencies:
         commit: 'sha1-bbbca2ddaa5d8feaa63e36b76fdaad77386f024f'
         owner_id: 44036562
         repo_id: 192625955
-    'actions/upload-pages-artifact@v5.0.0':
+    'actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9':
         ref: 'v5.0.0'
         commit: 'sha1-fc324d3547104276b827a68afc52ff2a11cc49c9'
         owner_id: 44036562
@@ -90,16 +85,21 @@ dependencies:
         commit: 'sha1-22d081ff2d3a40755e97629de92e3bcbfa7cf2ed'
         owner_id: 42048915
         repo_id: 356423100
+    'dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de':
+        ref: 'v1'
+        commit: 'sha1-02cb101ec7c40f2c49e1d9714d64511d8e1b74de'
+        owner_id: 1940490
+        repo_id: 260749683
     'dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772':
         ref: '6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772'
         commit: 'sha1-6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772'
         owner_id: 1940490
         repo_id: 260749683
-    'dtolnay/rust-toolchain@v1':
-        ref: 'v1'
-        commit: 'sha1-02cb101ec7c40f2c49e1d9714d64511d8e1b74de'
-        owner_id: 1940490
-        repo_id: 260749683
+    'editorconfig-checker/action-editorconfig-checker@51f63319f592f97930c73d9c46184d20bd206393':
+        ref: 'v3.0.0'
+        commit: 'sha1-51f63319f592f97930c73d9c46184d20bd206393'
+        owner_id: 26415196
+        repo_id: 297874902
     'editorconfig-checker/action-editorconfig-checker@840e866d93b8e032123c23bac69dece044d4d84c':
         ref: '840e866d93b8e032123c23bac69dece044d4d84c'
         commit: 'sha1-840e866d93b8e032123c23bac69dece044d4d84c'
@@ -110,9 +110,9 @@ dependencies:
         commit: 'sha1-54075bcc5e249e4758d363f27d099f55d843f124'
         owner_id: 47606891
         repo_id: 331103973
-    'github/codeql-action@b96794f015dfd88f77b49b1c93e0fa7110f94c63':
-        ref: 'v4.38.0'
-        commit: 'sha1-b96794f015dfd88f77b49b1c93e0fa7110f94c63'
+    'github/codeql-action@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2':
+        ref: '2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2'
+        commit: 'sha1-2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2'
         owner_id: 9919
         repo_id: 259445878
     'github/codeql-action@7188fc363630916deb702c7fdcf4e481b751f97a':
@@ -120,7 +120,7 @@ dependencies:
         commit: 'sha1-7188fc363630916deb702c7fdcf4e481b751f97a'
         owner_id: 9919
         repo_id: 259445878
-    'hyperpolymath/smtp-notify-action@v0.3.0':
+    'hyperpolymath/smtp-notify-action@22e7bdb322c430c1d0dac6b3bb307f4bb139d0be':
         ref: 'v0.3.0'
         commit: 'sha1-22e7bdb322c430c1d0dac6b3bb307f4bb139d0be'
         owner_id: 6759885
@@ -134,6 +134,16 @@ dependencies:
             - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
             - 'dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772'
             - 'webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555'
+    'hyperpolymath/standards@6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953':
+        ref: '6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953'
+        commit: 'sha1-6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953'
+        owner_id: 6759885
+        repo_id: 1116521501
+        uses:
+            - 'actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9'
+            - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
+            - 'editorconfig-checker/action-editorconfig-checker@51f63319f592f97930c73d9c46184d20bd206393'
+            - 'erlef/setup-beam@54075bcc5e249e4758d363f27d099f55d843f124'
     'hyperpolymath/standards@81dbf2dd854b1444fd6236fa2352474383b2c2b9':
         ref: '81dbf2dd854b1444fd6236fa2352474383b2c2b9'
         commit: 'sha1-81dbf2dd854b1444fd6236fa2352474383b2c2b9'
@@ -154,7 +164,7 @@ dependencies:
         repo_id: 1116521501
         uses:
             - 'actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0'
-    'peter-evans/repository-dispatch@v4.0.1':
+    'peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697':
         ref: 'v4.0.1'
         commit: 'sha1-28959ce8df70de7be546dd1250a005dd32156697'
         owner_id: 18365890
diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 47ae046..8762dc7 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: BoJ Server Build Trigger
 on:
   push:
@@ -11,7 +11,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Trigger BoJ Server (Casket/ssg-mcp)
         run: |
           # Send a secure trigger to boj-server to build this repository
diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 583c1f8..a2faeaf 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 #
 # Deploys the prebuilt static site committed under site/ — CI deliberately
 # performs NO build step. The previous casket-ssg (Haskell) build never
@@ -29,13 +29,13 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Setup Pages
-        uses: actions/configure-pages@v6.0.0
+        uses: actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d # v6.0.0
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v5.0.0
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
         with:
           path: 'site'
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v5.0.1
+        uses: actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346 # v5.0.1
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9a7c8f8..7112957 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: CodeQL
 
 on:
@@ -31,16 +31,16 @@ jobs:
             build-mode: none
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.0 (4.38.1 blocked estate-wide; nexia-list#100)
+        uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 (4.38.1 blocked estate-wide; nexia-list#100)
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Autobuild
-        uses: github/codeql-action/autobuild@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.0 (4.38.1 blocked estate-wide; nexia-list#100)
+        uses: github/codeql-action/autobuild@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 (4.38.1 blocked estate-wide; nexia-list#100)
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.0 (4.38.1 blocked estate-wide; nexia-list#100)
+        uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 (4.38.1 blocked estate-wide; nexia-list#100)
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index 82c3a76..2728cc3 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Governance
 
 on:
@@ -15,4 +15,4 @@ permissions:
 
 jobs:
   governance:
-    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@81dbf2dd854b1444fd6236fa2352474383b2c2b9
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index 4592246..55d8df6 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Hypatia Security Scan
 
 on:
diff --git a/.github/workflows/instant-sync.yml b/.github/workflows/instant-sync.yml
index 8e6971a..c593bf7 100644
--- a/.github/workflows/instant-sync.yml
+++ b/.github/workflows/instant-sync.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # Instant Forge Sync - Triggers propagation to all forges on push/release
 name: Instant Sync
 
@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Trigger Propagation
-        uses: peter-evans/repository-dispatch@v4.0.1
+        uses: peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697 # v4.0.1
         with:
           token: ${{ secrets.FARM_DISPATCH_TOKEN }}
           repository: hyperpolymath/.git-private-farm
diff --git a/.github/workflows/label-triage.yml b/.github/workflows/label-triage.yml
index 814a192..fc79947 100644
--- a/.github/workflows/label-triage.yml
+++ b/.github/workflows/label-triage.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Label Triage
 
 # Classify newly-filed issues against the estate label taxonomy.
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index 83ab941..af34c6b 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Labels
 
 # Applies the canonical estate label set from .github/labels.json.
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index 9570b4a..80e03c0 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Mirror to Git Forges
 on:
   push:
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index 71d0e28..11d401c 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: GitHub Pages (Ddraig SSG)
 on:
   push:
@@ -21,9 +21,9 @@ jobs:
       image: ghcr.io/stefan-hoeck/idris2-pack@sha256:f0758996a931fb35d9ecb1de273c4d59dabe2a09b433afc7e357f65a08b7e1ff
     steps:
       - name: Checkout Site
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Checkout Ddraig SSG
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: hyperpolymath/ddraig-ssg
           path: .ddraig-ssg
@@ -40,7 +40,7 @@ jobs:
           fi
           ./.ddraig-ssg/build/exec/ddraig build src _site https://hyperpolymath.github.io/${GITHUB_REPOSITORY#*/}
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v5.0.0
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
         with:
           path: '_site'
   deploy:
@@ -53,4 +53,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v5.0.1
+        uses: actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346 # v5.0.1
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index 8a96bf9..5bba600 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -1,6 +1,6 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
+# This workflow is managed by gh actions-lock.
 # Dormant push-email notification. ARMED by setting the repo variable
 # PUSH_EMAIL_ENABLED=true (the single on/off switch). Addresses are pre-filled;
 # sending needs the org SMTP secrets (SMTP_HOST/PORT/USER/PASS). Inherited by
@@ -41,7 +41,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Send push notification email
-        uses: hyperpolymath/smtp-notify-action@v0.3.0
+        uses: hyperpolymath/smtp-notify-action@22e7bdb322c430c1d0dac6b3bb307f4bb139d0be # v0.3.0
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}
diff --git a/.github/workflows/quality-gates.yml b/.github/workflows/quality-gates.yml
index fe449eb..a9c2fb1 100644
--- a/.github/workflows/quality-gates.yml
+++ b/.github/workflows/quality-gates.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Quality Gates
 permissions:
   actions: read
@@ -15,7 +15,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -29,15 +29,10 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install Rust toolchain
-        # v1 tag, not a SHA: dtolnay force-moves toolchain branches, so no
-        # symbolic ref contains the old pin and lockfile generation refuses it.
-        # The actions.lock records the resolved SHA; the toolchain must be an
-        # explicit input because the ref no longer selects it.
-        uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: v1
+        # Pin the action independently of the requested Rust toolchain.
+        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
         with:
           toolchain: stable
       - name: Install system dependencies
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index 8e4582a..1330e96 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -1,5 +1,5 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Secret Scanner
 on:
   pull_request:
diff --git a/.github/workflows/workflow-linter.yml b/.github/workflows/workflow-linter.yml
index 41cb7bd..302c65b 100644
--- a/.github/workflows/workflow-linter.yml
+++ b/.github/workflows/workflow-linter.yml
@@ -1,50 +1,26 @@
-# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # Prevention workflow - validates all workflows have proper security config
 name: Workflow Security Linter
 on:
   pull_request:
     paths:
       - '.github/workflows/**'
+      - 'scripts/check-workflow-security.sh'
+      - 'tests/workflow-security.sh'
   push:
     paths:
       - '.github/workflows/**'
+      - 'scripts/check-workflow-security.sh'
+      - 'tests/workflow-security.sh'
 permissions: read-all
 jobs:
   lint-workflows:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v7.0.1
-      - name: Check SPDX headers
-        run: |
-          errors=0
-          for f in .github/workflows/*.yml .github/workflows/*.yaml; do
-            [ -f "$f" ] || continue
-            if ! head -1 "$f" | grep -q "SPDX-License-Identifier"; then
-              echo "ERROR: $f missing SPDX header"
-              errors=$((errors + 1))
-            fi
-          done
-          exit $errors
-      - name: Check permissions declaration
-        run: |
-          errors=0
-          for f in .github/workflows/*.yml .github/workflows/*.yaml; do
-            [ -f "$f" ] || continue
-            if ! grep -q "^permissions:" "$f"; then
-              echo "ERROR: $f missing permissions declaration"
-              errors=$((errors + 1))
-            fi
-          done
-          exit $errors
-      - name: Check pinned actions
-        run: |
-          errors=0
-          for f in .github/workflows/*.yml .github/workflows/*.yaml; do
-            [ -f "$f" ] || continue
-            # Look for uses: without SHA
-            if grep -E "uses:.*@v[0-9]" "$f" | grep -v "#"; then
-              echo "WARNING: $f has unpinned actions (missing SHA comment)"
-            fi
-          done
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - name: Test workflow security checker
+        run: bash tests/workflow-security.sh
+      - name: Check workflow security
+        run: bash scripts/check-workflow-security.sh
diff --git a/docs/ISSUE-96-WORKFLOW-TRIAGE.adoc b/docs/ISSUE-96-WORKFLOW-TRIAGE.adoc
new file mode 100644
index 0000000..3337cb9
--- /dev/null
+++ b/docs/ISSUE-96-WORKFLOW-TRIAGE.adoc
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: MPL-2.0
+= Issue 96: workflow-check repair
+:revdate: 2026-09-28
+
+== Determination and default-branch evidence
+
+Both occurrences of `lint-workflows` in
+https://github.com/hyperpolymath/vexometer/issues/96[issue 96]
+refer to the same job, not separate implementations.
+The determination for both is *repair*, not retirement or exemption.
+The determination for `governance / Workflow security linter` is also *repair*.
+These determinations describe the chosen remedy, not a claim that default-branch
+acceptance has already been met.
+
+At default-branch commit `467e41b3a62f5a5ba78530a9f5c19ee12083bc3c`:
+
+* https://github.com/hyperpolymath/vexometer/actions/runs/36439803908[job lint-workflows]
+  failed at `Check SPDX headers`.
+* https://github.com/hyperpolymath/vexometer/actions/runs/36439809171/job/108987051280[governance / Workflow security linter]
+  failed at `Check SPDX headers + permissions`.
+
+The GitHub job/step API confirms these failures; downloading the archived logs
+failed in the development environment. Local reproduction established the causes
+below. These are pre-existing failures on main, not defects introduced by PR 95.
+
+== Repairs
+
+* Restore first-line SPDX headers ahead of the actions-lock management comment.
+* Replace action tags with the immutable commits already recorded in the lockfile.
+  Keep Rust's `stable` toolchain input independent of the action pin.
+* Replace the local warning-only pin scan with a failing checker covering both
+  step actions and reusable-workflow calls. Regression tests exercise missing
+  headers, missing permissions, tag pins with misleading comments, quoted refs,
+  local actions, `.yaml` files, and empty directories.
+* Upgrade governance from `81dbf2dd854b1444fd6236fa2352474383b2c2b9` to
+  `6e98f4bf810afb9b03d363b4c2c0c0adc1ac4953` (the observed upstream main).
+  The old pin recursively greps `actions.lock` and falsely reports its nested
+  `uses:` lists as unpinned actions. The updated workflow separates lockfile
+  verification, duplicate-key detection and upstream pin resolution.
+* Synchronize the lockfile including the upgraded governance dependencies.
+  Preserve the existing CodeQL workflow commit and correct its stale lock record
+  and inaccurate version comment (the commit is v4.38.2, not v4.38.0).
+* Remove the duplicate `with:` key in Quality Gates, which otherwise prevents
+  GitHub from parsing that workflow.
+
+No required-check settings were changed, no affected job was removed, and no
+failure was demoted or bypassed. The new governance revision also carries other
+upstream policy updates; any newly exposed failures should be triaged separately.
+
+== Validation and closure
+
+Local checks:
+
+[source,shell]
+----
+bash tests/workflow-security.sh
+bash scripts/check-workflow-security.sh
+bash -n scripts/check-workflow-security.sh tests/workflow-security.sh
+git diff --check
+----
+
+The upgraded governance's pinned duplicate-key and action-resolution helpers were
+also executed locally: 15 workflow files clean, all 12 unique action pins resolve.
+A separate strict YAML parse and structural lockfile audit checked workflow
+coverage, exact per-workflow refs, and transitive dependency closure.
+
+The repository's GNU-awk lock-sync script could not run locally because gawk is
+unavailable and Debian package downloads failed. Its GitHub run remains the
+canonical validation; local structural validation is not a substitute for it.
+
+Leave issue 96 open until the repaired checks are green on the PR head and,
+after merging, on a run of the default branch. Record those run URLs in the
+issue. Do not treat a successful local test or a PR-only run as satisfying the
+issue's default-branch acceptance criterion.
diff --git a/scripts/check-workflow-security.sh b/scripts/check-workflow-security.sh
new file mode 100755
index 0000000..3835b14
--- /dev/null
+++ b/scripts/check-workflow-security.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: MPL-2.0
+# Keep first-line licensing, explicit permissions and immutable action refs mandatory.
+set -euo pipefail
+workflow_dir="${1:-.github/workflows}"
+shopt -s nullglob
+files=("$workflow_dir"/*.yml "$workflow_dir"/*.yaml)
+if ((${#files[@]} == 0)); then
+  echo "ERROR: no workflows found in $workflow_dir" >&2
+  exit 1
+fi
+failed=0
+for file in "${files[@]}"; do
+  if ! head -1 "$file" | grep -q '^# SPDX-License-Identifier:'; then
+    echo "ERROR: $file missing first-line SPDX header"
+    failed=1
+  fi
+  if ! grep -q '^permissions:' "$file"; then
+    echo "ERROR: $file missing top-level permissions declaration"
+    failed=1
+  fi
+  # Match both step-level and job-level uses, including quoted scalar refs.
+  while IFS= read -r ref; do
+    case "$ref" in
+      ./*) continue ;;
+      docker://*@sha256:*)
+        if [[ "$ref" =~ @sha256:[a-f0-9]{64}$ ]]; then continue; fi ;;
+      *)
+        if [[ "$ref" =~ @[a-f0-9]{40}$ ]]; then continue; fi ;;
+    esac
+    echo "ERROR: $file has unpinned action: $ref"
+    failed=1
+  done < <(sed -nE "s/^[[:space:]]*(-[[:space:]]+)?uses:[[:space:]]*['\"]?([^'\"[:space:]#]+).*/\2/p" "$file")
+done
+if ((failed)); then exit 1; fi
+echo 'All workflows have first-line SPDX headers, permissions and immutable action refs'
diff --git a/tests/workflow-security.sh b/tests/workflow-security.sh
new file mode 100755
index 0000000..e1641f2
--- /dev/null
+++ b/tests/workflow-security.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: MPL-2.0
+set -euo pipefail
+root="$(cd "$(dirname "$0")/.." && pwd)"
+tmp="$(mktemp -d)"
+trap 'rm -rf "$tmp"' EXIT
+checker="$root/scripts/check-workflow-security.sh"
+expect_failure() {
+  if bash "$checker" "$tmp" > "$tmp/result" 2>&1; then
+    echo "FAIL: $1 was accepted" >&2
+    exit 1
+  fi
+}
+expect_failure 'empty workflow directory'
+cat > "$tmp/test.yml" <<'YAML'
+# SPDX-License-Identifier: MPL-2.0
+permissions: {contents: read}
+jobs:
+  lint:
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
+      - uses: ./local-action
+YAML
+bash "$checker" "$tmp"
+sed -i '1i# This workflow is managed by gh actions-lock.' "$tmp/test.yml"
+expect_failure 'displaced SPDX header'
+sed -i '1d' "$tmp/test.yml"
+sed -i '/^permissions:/d' "$tmp/test.yml"
+expect_failure 'missing permissions'
+sed -i '2i permissions: read-all' "$tmp/test.yml"
+sed -i 's/@3d3c42e5aac5ba805825da76410c181273ba90b1/@v7.0.1 # a comment is not a pin/' "$tmp/test.yml"
+expect_failure 'tagged step action with comment'
+cat > "$tmp/test.yml" <<'YAML'
+# SPDX-License-Identifier: MPL-2.0
+permissions: {contents: read}
+jobs:
+  shared:
+    uses: 'owner/repo/.github/workflows/check.yml@main'
+YAML
+expect_failure 'quoted unpinned reusable workflow'
+sed -i 's/@main/@3d3c42e5aac5ba805825da76410c181273ba90b1/' "$tmp/test.yml"
+mv "$tmp/test.yml" "$tmp/test.yaml"
+bash "$checker" "$tmp"
+echo 'Workflow security regression tests passed'