diff --git a/.github/actions/ci-setup/action.yml b/.github/actions/ci-setup/action.yml
index f4d2206..1e2c37c 100644
--- a/.github/actions/ci-setup/action.yml
+++ b/.github/actions/ci-setup/action.yml
@@ -1,6 +1,12 @@
 name: Setup CI
 description: Setup CI
 
+inputs:
+  skip-cache:
+    description: "Whether to skip the cache"
+    required: false
+    default: "false"
+
 runs:
   using: composite
   steps:
@@ -10,7 +16,8 @@ runs:
     - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
       with:
         node-version-file: ".node-version"
-        cache: pnpm
+        package-manager-cache: ${{ inputs.skip-cache != 'true' }}
+        cache: ${{ inputs.skip-cache != 'true' && 'pnpm' || '' }}
 
     - name: Install dependencies
       shell: bash
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 3a3cce5..7495a7f 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -9,3 +9,5 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e4a2c52..f4e0f66 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,8 @@ name: CI
 
 on:
   pull_request:
-  push:
-    branches:
-      - main
+  # merge queue is required so all commits on target branches trigger this workflow
+  # despite lack of the push event trigger here
   merge_group:
     branches:
       - main
@@ -12,7 +11,30 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.sha }}
+  cancel-in-progress: true
+
 jobs:
+  lint-workflows:
+    name: Lint workflows
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read # only required in private repos
+      security-events: write # allow writing security events
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@b1d7e1fb5de872772f31590499237e7cce841e8e # v0.5.3
+        with:
+          persona: pedantic
+          annotations: true
+          advanced-security: false
+
   test:
     name: Test
     timeout-minutes: 20
@@ -49,8 +71,8 @@ jobs:
     name: CI OK
     runs-on: ubuntu-latest
     if: always()
-    needs: [test, typecheck]
+    needs: [lint-workflows, test, typecheck]
     steps:
       - name: Exit with error if some jobs are not successful
         run: exit 1
-        if: ${{ always() && (contains(needs.*.result, 'failure') || contains(needs.*.result, 'skipped') || contains(needs.*.result, 'cancelled')) }}
+        if: ${{ always() && (contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')) }}
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 92b9145..e3384c8 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,7 +5,10 @@ on:
     branches:
       - main
 
-concurrency: ${{ github.workflow }}-${{ github.ref }}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+  queue: max
 
 permissions: {} # each job should define its own permission explicitly
 
@@ -27,6 +30,8 @@ jobs:
           persist-credentials: false
 
       - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
 
       - name: Build
         run: pnpm build
@@ -61,6 +66,8 @@ jobs:
           token: ${{ steps.app-token.outputs.token }}
 
       - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
 
       - name: Build
         run: pnpm build
diff --git a/.github/workflows/release-pr.yml b/.github/workflows/release-pr.yml
index 94f9e71..c77c6e5 100644
--- a/.github/workflows/release-pr.yml
+++ b/.github/workflows/release-pr.yml
@@ -4,25 +4,33 @@ on:
   issue_comment:
     types: [created]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.run_id }}
+  cancel-in-progress: true
+
 permissions: {}
 
 jobs:
   release_check:
+    name: Validate release request
     if: github.repository == 'changesets/action' && github.event.issue.pull_request && startsWith(github.event.comment.body, '/release-pr')
     timeout-minutes: 5
     runs-on: ubuntu-latest
 
     permissions:
-      contents: read
-      issues: write
-      pull-requests: read
+      contents: read # to inspect the pull request commit state (changesets/action)
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: read # to inspect the pull request head state (changesets/action)
 
     steps:
       - id: report_in_progress
         run: |
-          echo "in_progress_reaction_id=$(gh api /repos/${{github.repository}}/issues/comments/${{github.event.comment.id}}/reactions -f content='eyes' --jq '.id')" >> "$GITHUB_OUTPUT"
+          in_progress_reaction_id=$(gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='eyes' --jq '.id')
+          echo "in_progress_reaction_id=$in_progress_reaction_id" >> "$GITHUB_OUTPUT"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
 
       - id: parse_command
         run: |
@@ -38,7 +46,7 @@ jobs:
 
       - id: check_authorization
         run: |
-          if [[ $AUTHOR_ASSOCIATION == 'MEMBER' || $AUTHOR_ASSOCIATION == 'OWNER' || $AUTHOR_ASSOCIATION == 'COLLABORATOR' ]]
+          if [[ "$AUTHOR_ASSOCIATION" == 'MEMBER' || "$AUTHOR_ASSOCIATION" == 'OWNER' || "$AUTHOR_ASSOCIATION" == 'COLLABORATOR' ]]
           then
             echo "User is authorized to release"
           else
@@ -53,7 +61,7 @@ jobs:
           requested_sha=$(echo "$REQUESTED_SHA" | tr '[:upper:]' '[:lower:]')
 
           mapfile -t matches < <(
-            gh api /repos/${{ github.repository }}/pulls/${{ github.event.issue.number }}/commits --paginate --jq '.[].sha' |
+            gh api "/repos/$GH_REPO/pulls/$ISSUE_NUMBER/commits" --paginate --jq '.[].sha' |
               awk -v sha="$requested_sha" 'index(tolower($0), sha) == 1 { print $0 }'
           )
 
@@ -70,7 +78,7 @@ jobs:
           fi
 
           resolved_sha="${matches[0]}"
-          pr_head_sha=$(gh pr view ${{ github.event.issue.number }} --json headRefOid --jq '.headRefOid')
+          pr_head_sha=$(gh pr view "$ISSUE_NUMBER" --json headRefOid --jq '.headRefOid')
 
           if [[ "$resolved_sha" != "$pr_head_sha" ]]
           then
@@ -82,13 +90,17 @@ jobs:
           echo "pr_head_sha=$pr_head_sha" >> "$GITHUB_OUTPUT"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
           REQUESTED_SHA: ${{ steps.parse_command.outputs.requested_sha }}
 
       - id: get_pr_head_repository
         run: |
-          echo "head_repository=$(gh pr view ${{ github.event.issue.number }} --json headRepositoryOwner,headRepository --jq '.headRepositoryOwner.login + "/" + .headRepository.name')" >> "$GITHUB_OUTPUT"
+          head_repository=$(gh pr view "$ISSUE_NUMBER" --json headRepositoryOwner,headRepository --jq '.headRepositoryOwner.login + "/" + .headRepository.name')
+          echo "head_repository=$head_repository" >> "$GITHUB_OUTPUT"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
 
     outputs:
       in_progress_reaction_id: ${{ steps.report_in_progress.outputs.in_progress_reaction_id }}
@@ -98,15 +110,16 @@ jobs:
       head_repository: ${{ steps.get_pr_head_repository.outputs.head_repository }}
 
   release:
+    name: Release snapshot
     if: github.repository == 'changesets/action'
     timeout-minutes: 20
     runs-on: ubuntu-latest
     needs: release_check
 
     permissions:
-      contents: write
-      issues: write
-      pull-requests: write
+      contents: write # to create the release commit and publish snapshot artifacts (changesets/action)
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: write # to comment on the pull request with the release result (changesets/action)
 
     steps:
       - name: Check out repo
@@ -115,35 +128,40 @@ jobs:
           persist-credentials: false
 
       - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
 
       - name: Fetch validated commit from pull request head repository
         run: |
-          git remote add pr-head https://github.com/$HEAD_REPOSITORY.git
-          git fetch --no-tags pr-head $RESOLVED_SHA
+          git remote add pr-head "https://github.com/$HEAD_REPOSITORY.git"
+          git fetch --no-tags pr-head "$RESOLVED_SHA"
         env:
           HEAD_REPOSITORY: ${{ needs.release_check.outputs.head_repository }}
           RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
 
       - name: Checkout validated commit
-        run: git checkout --detach $RESOLVED_SHA
+        run: git checkout --detach "$RESOLVED_SHA"
         env:
           RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
 
       - name: Check if Version Packages PR
         id: check_version_packages
         run: |
-          echo "version_packages=$(gh pr view ${{ github.event.issue.number }} --json headRefName --jq '.headRefName|startswith("changeset-release/")')" >> "$GITHUB_OUTPUT"
+          version_packages=$(gh pr view "$ISSUE_NUMBER" --json headRefName --jq '.headRefName|startswith("changeset-release/")')
+          echo "version_packages=$version_packages" >> "$GITHUB_OUTPUT"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
 
       - name: Reset Version Packages PR
         if: steps.check_version_packages.outputs.version_packages == 'true'
         run: git reset --hard HEAD~1
 
       - name: Create snapshot version
-        run: pnpm changeset version --snapshot pr${{ github.event.issue.number }}
+        run: pnpm changeset version --snapshot "pr$ISSUE_NUMBER"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
 
       - name: Build
         run: pnpm build
@@ -157,45 +175,68 @@ jobs:
         run: pnpm release:pr
 
       - name: Add success reaction
-        run: gh api /repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions -f content='rocket'
+        run: gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='rocket'
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
 
       - name: Remove in-progress reaction
-        run: gh api -X DELETE /repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions/${{ needs.release_check.outputs.in_progress_reaction_id }}
+        run: gh api -X DELETE "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions/$IN_PROGRESS_REACTION_ID"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+          IN_PROGRESS_REACTION_ID: ${{ needs.release_check.outputs.in_progress_reaction_id }}
 
       - name: Comment success
         run: |
-          gh pr comment ${{ github.event.issue.number }} --body "The release for \`${{ needs.release_check.outputs.resolved_sha }}\` triggered by [this comment](${{ github.event.comment.url }}) has [succeeded](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}). Published commit: [${{ github.repository }}@$(git rev-parse HEAD)](https://github.com/${{ github.repository }}/commit/$(git rev-parse HEAD))."
+          published_commit="$(git rev-parse HEAD)"
+          body="The release for \`$RESOLVED_SHA\` triggered by [this comment]($COMMENT_URL) has [succeeded]($RUN_URL). Published commit: [$GH_REPO@$published_commit](https://github.com/$GH_REPO/commit/$published_commit)."
+          gh pr comment "$ISSUE_NUMBER" --body "$body"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          COMMENT_URL: ${{ github.event.comment.url }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
 
   report-failure-if-needed:
+    name: Report failure
     needs: [release_check, release]
     timeout-minutes: 2
     runs-on: ubuntu-latest
     if: failure() && github.repository == 'changesets/action' && (needs.release_check.result == 'failure' || needs.release.result == 'failure')
 
     permissions:
-      issues: write
-      pull-requests: write
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: write # to comment on the pull request with the failure result (changesets/action)
 
     steps:
       - name: Add failure reaction
-        run: gh api /repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions -f content='-1'
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Remove in-progress reaction
-        run: gh api -X DELETE /repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions/${{ needs.release_check.outputs.in_progress_reaction_id }}
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Comment failure
-        run: |
-          gh pr comment ${{ github.event.issue.number }} --body "The release for \`${{ needs.release_check.outputs.requested_sha }}\` triggered by [this comment](${{ github.event.comment.url }}) has [failed](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})."
+        run: gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='-1'
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+
+      - name: Remove in-progress reaction
+        run: gh api -X DELETE "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions/$IN_PROGRESS_REACTION_ID"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+          IN_PROGRESS_REACTION_ID: ${{ needs.release_check.outputs.in_progress_reaction_id }}
+
+      - name: Comment failure
+        run: |
+          body="The release for \`$REQUESTED_SHA\` triggered by [this comment]($COMMENT_URL) has [failed]($RUN_URL)."
+          gh pr comment "$ISSUE_NUMBER" --body "$body"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          COMMENT_URL: ${{ github.event.comment.url }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          REQUESTED_SHA: ${{ needs.release_check.outputs.requested_sha }}