diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 7c04b4e..ad42433 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -19,7 +19,7 @@ jobs:
     if: ${{ vars.BOJ_SERVER_URL != '' || secrets.BOJ_SERVER_URL != '' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Trigger BoJ Server (Casket/ssg-mcp)
         env:
           BOJ_URL: ${{ secrets.BOJ_SERVER_URL || vars.BOJ_SERVER_URL }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 894cafb..5d43d7d 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -30,13 +30,13 @@ jobs:
             build-mode: none
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.28.1
+        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3.28.1
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.28.1
+        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3.28.1
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/dependabot-automerge.yml b/.github/workflows/dependabot-automerge.yml
index 4a79b0d..c2ada47 100644
--- a/.github/workflows/dependabot-automerge.yml
+++ b/.github/workflows/dependabot-automerge.yml
@@ -51,7 +51,7 @@ jobs:
     steps:
       - name: Fetch Dependabot metadata
         id: meta
-        uses: dependabot/fetch-metadata@dbb049abf0d677abbd7f7eee0375145b417fdd34 # v2.2.0
+        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
       # --- Policy gate -------------------------------------------------------
diff --git a/.github/workflows/dogfood-gate.yml b/.github/workflows/dogfood-gate.yml
index a902e8a..d8adb22 100644
--- a/.github/workflows/dogfood-gate.yml
+++ b/.github/workflows/dogfood-gate.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check for A2ML files
         id: detect
@@ -71,7 +71,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check for K9 files
         id: detect
@@ -121,7 +121,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Scan for invisible characters
         id: lint
@@ -186,7 +186,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check for Groove manifest
         id: groove
@@ -245,7 +245,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check and validate eclexiaiser manifest
         id: eclex
@@ -296,7 +296,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Generate dogfooding scorecard
         run: |
diff --git a/.github/workflows/estate-rules.yml b/.github/workflows/estate-rules.yml
index 1da5c31..8bd5626 100644
--- a/.github/workflows/estate-rules.yml
+++ b/.github/workflows/estate-rules.yml
@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Root shape allowlist
         run: bash scripts/check-root-shape.sh .
       - name: AsciiDoc by default (no .md under docs/)
diff --git a/.github/workflows/guix-nix-policy.yml b/.github/workflows/guix-nix-policy.yml
index ac5e0f8..36505df 100644
--- a/.github/workflows/guix-nix-policy.yml
+++ b/.github/workflows/guix-nix-policy.yml
@@ -20,7 +20,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Enforce Guix primary / Nix fallback
         run: |
           # Check for package manager files
diff --git a/.github/workflows/npm-bun-blocker.yml b/.github/workflows/npm-bun-blocker.yml
index 6e1ba52..e1016ac 100644
--- a/.github/workflows/npm-bun-blocker.yml
+++ b/.github/workflows/npm-bun-blocker.yml
@@ -20,7 +20,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Block npm/bun
         run: |
           if [ -f "package-lock.json" ] || [ -f "bun.lockb" ] || [ -f ".npmrc" ]; then
diff --git a/.github/workflows/openssf-compliance.yml b/.github/workflows/openssf-compliance.yml
index b8e58d6..bd1671f 100644
--- a/.github/workflows/openssf-compliance.yml
+++ b/.github/workflows/openssf-compliance.yml
@@ -17,7 +17,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: Check SECURITY.md exists and has substance
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index 4b4e754..9abf263 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Send push notification email
-        uses: dawidd6/action-send-mail@6e502825a508b867ab2954ad6343b68787624c01 # pinned
+        uses: dawidd6/action-send-mail@994f270325d4f7257aff241a35488ef54ba364a4 # pinned
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}
diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index 516d512..dea6d25 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -21,12 +21,12 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Check file permissions
         run: |
           find . -type f -perm /111 -name "*.sh" | head -10 || true
       - name: Check for secrets
-        uses: trufflesecurity/trufflehog@6c05c4a00b91aa542267d8e32a8254774799d68d # v3.93.3
+        uses: trufflesecurity/trufflehog@30d5bb91af1a771378349dbbb0c82129392acf70 # v3.93.3
         with:
           path: ./
           base: ${{ github.event.pull_request.base.sha || github.event.before }}
@@ -40,7 +40,7 @@ jobs:
         run: |
           find . -type f -size +1M -not -path "./.git/*" | head -10 || echo "No large files"
       - name: EditorConfig check
-        uses: editorconfig-checker/action-editorconfig-checker@4b6cd6190d435e7e084fb35e36a096e98506f7b9 # v2.1.0
+        uses: editorconfig-checker/action-editorconfig-checker@840e866d93b8e032123c23bac69dece044d4d84c # v2.2.0
         continue-on-error: true
   docs:
     runs-on: ubuntu-latest
@@ -48,7 +48,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Check documentation
         run: |
           MISSING=""
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9ad2b8d..6c41cbc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Detect project type and build
         id: build
         run: |
@@ -80,7 +80,7 @@ jobs:
       changelog: ${{ steps.cliff.outputs.content }}
       version: ${{ steps.version.outputs.version }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
       - name: Extract version from tag
@@ -105,7 +105,7 @@ jobs:
         run: |
           git cliff --output CHANGELOG.md
       - name: Upload updated CHANGELOG.md
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: changelog
           path: CHANGELOG.md
@@ -118,14 +118,14 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       # TODO: Download build artifacts if uploading to the release
       # - uses: actions/download-artifact@v4
       #   with:
       #     name: release-artifacts
       #     path: artifacts/
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
+        uses: softprops/action-gh-release@718ea10b132b3b2eba29c1007bb80653f286566b # v2
         with:
           body: ${{ needs.changelog.outputs.changelog }}
           draft: false
diff --git a/.github/workflows/rhodibot.yml b/.github/workflows/rhodibot.yml
index d605e15..bb3d5bf 100644
--- a/.github/workflows/rhodibot.yml
+++ b/.github/workflows/rhodibot.yml
@@ -21,7 +21,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 1
       - name: Rhodibot — AUDIT (detect + log; NO mutation, NO PR)
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index ae77719..5bdfd61 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -17,7 +17,7 @@ jobs:
   trufflehog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: TruffleHog Secret Scan
diff --git a/.github/workflows/security-policy.yml b/.github/workflows/security-policy.yml
index c244ff2..863658d 100644
--- a/.github/workflows/security-policy.yml
+++ b/.github/workflows/security-policy.yml
@@ -20,7 +20,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Security checks
         run: |
           FAILED=false
diff --git a/.github/workflows/static-analysis-gate.yml b/.github/workflows/static-analysis-gate.yml
index 1ecc46b..2315831 100644
--- a/.github/workflows/static-analysis-gate.yml
+++ b/.github/workflows/static-analysis-gate.yml
@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
       - name: Install panic-attack (if available)
@@ -96,7 +96,7 @@ jobs:
           echo "" >> "$GITHUB_STEP_SUMMARY"
           echo "Skipped: panic-attack not available in this environment." >> "$GITHUB_STEP_SUMMARY"
       - name: Upload panic-attack findings
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: panic-attack-findings
           path: panic-attack-findings.json
@@ -115,13 +115,13 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
       - name: Setup Elixir for Hypatia scanner
         id: beam
         continue-on-error: true
-        uses: erlef/setup-beam@e6d7c94229049569db56a7ad5a540c051a010af9 # v1.18.2
+        uses: erlef/setup-beam@54075bcc5e249e4758d363f27d099f55d843f124 # v1.18.2
         with:
           elixir-version: '1.19.4'
           otp-version: '28.3'
@@ -200,7 +200,7 @@ jobs:
           echo "" >> "$GITHUB_STEP_SUMMARY"
           echo "Skipped: Hypatia scanner not available in this environment." >> "$GITHUB_STEP_SUMMARY"
       - name: Upload hypatia findings
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: hypatia-findings
           path: hypatia-findings.json
@@ -219,7 +219,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
       - name: Install panic-attack (if available)
@@ -281,7 +281,7 @@ jobs:
           echo "" >> "$GITHUB_STEP_SUMMARY"
           echo "Skipped: panic-attack not available in this environment." >> "$GITHUB_STEP_SUMMARY"
       - name: Upload bridge report
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: bridge-report
           path: bridge-report.json
@@ -303,17 +303,17 @@ jobs:
     if: always()
     steps:
       - name: Download panic-attack findings
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v4
         with:
           name: panic-attack-findings
           path: findings/
       - name: Download hypatia findings
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v4
         with:
           name: hypatia-findings
           path: findings/
       - name: Download bridge report
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v4
         with:
           name: bridge-report
           path: findings/
@@ -373,7 +373,7 @@ jobs:
           echo "medium=$MEDIUM"     >> "$GITHUB_OUTPUT"
           echo "low=$LOW"           >> "$GITHUB_OUTPUT"
       - name: Upload unified findings (fleet scanner picks these up)
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: unified-findings
           path: findings/unified-findings.json
diff --git a/.github/workflows/trope-check.yml b/.github/workflows/trope-check.yml
index 528481a..3a2f35e 100644
--- a/.github/workflows/trope-check.yml
+++ b/.github/workflows/trope-check.yml
@@ -14,6 +14,6 @@ jobs:
   examples-lower-to-valid-ir:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Examples lower to valid Trope IR
         run: bash tests/check-examples.sh
diff --git a/.github/workflows/ts-blocker.yml b/.github/workflows/ts-blocker.yml
index 4c298c2..a306bf4 100644
--- a/.github/workflows/ts-blocker.yml
+++ b/.github/workflows/ts-blocker.yml
@@ -20,7 +20,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Block new TypeScript/JavaScript
         run: |
           NEW_TS=$(git diff --name-only --diff-filter=A HEAD~1 2>/dev/null | grep -E '\.(ts|tsx)$' | grep -v '\.gen\.' || true)
diff --git a/.github/workflows/wellknown-enforcement.yml b/.github/workflows/wellknown-enforcement.yml
index 67eb4f4..980d60c 100644
--- a/.github/workflows/wellknown-enforcement.yml
+++ b/.github/workflows/wellknown-enforcement.yml
@@ -22,7 +22,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: RFC 9116 security.txt validation
         run: |
           SECTXT=""
diff --git a/.github/workflows/workflow-linter.yml b/.github/workflows/workflow-linter.yml
index c93f723..60f3962 100644
--- a/.github/workflows/workflow-linter.yml
+++ b/.github/workflows/workflow-linter.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check SPDX Headers
         run: |
@@ -74,7 +74,7 @@ jobs:
             echo "$unpinned"
             echo ""
             echo "Replace version tags with SHA pins, e.g.:"
-            echo "  uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.1"
+            echo "  uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v6.0.1"
             exit 1
           fi
           echo "All actions are SHA-pinned"