diff --git a/.github/workflows/experiment.yml b/.github/workflows/experiment.yml
new file mode 100644
index 00000000..d302f4ea
--- /dev/null
+++ b/.github/workflows/experiment.yml
@@ -0,0 +1,226 @@
+name: publish-package-to-npm
+on:
+  workflow_call:
+    inputs:
+      code-analyzer-core:
+        description: Should the code-analyzer-core package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-engine-api:
+        description: Should the code-analyzer-engine-api package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-eslint-engine:
+        description: Should the code-analyzer-eslint-engine package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-flowtest-engine:
+        description: Should the code-analyzer-flowtest-engine package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-pmd-engine:
+        description: Should the code-analyzer-pmd-engine package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-regex-engine:
+        description: Should the code-analyzer-regex-engine package be released?
+        type: boolean
+        required: false
+        default: false
+      code-analyzer-retirejs-engine:
+        description: Should the code-analyzer-retirejs-engine package be released?
+        type: boolean
+        required: false
+        default: false
+      dryrun:
+        description: Add --dry-run to npm publish step? (Uncheck to actually publish)
+        type: boolean
+        required: false
+        default: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  validate-packages-as-releasable:
+    runs-on: macos-latest
+    outputs:
+      packages-to-release: ${{ steps.main.outputs.packages_to_release }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+      - name: Verify to-be-released packages are SNAPSHOT-versioned
+        id: main
+        run: |
+          PACKAGES_TO_CHECK_ARR=()
+          # ENGINE API GETS CHECKED FIRST, BECAUSE IT MUST PUBLISH FIRST
+          if [ "${{ inputs.code-analyzer-engine-api }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-engine-api')
+          fi
+          if [ "${{ inputs.code-analyzer-core }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-core')
+          fi
+          if [ "${{ inputs.code-analyzer-eslint-engine }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-eslint-engine')
+          fi
+          if [ "${{ inputs.code-analyzer-flowtest-engine }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-flowtest-engine')
+          fi
+          if [ "${{ inputs.code-analyzer-pmd-engine }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-pmd-engine')
+          fi
+          if [ "${{ inputs.code-analyzer-regex-engine }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-regex-engine')
+          fi
+          if [ "${{ inputs.code-analyzer-retirejs-engine }}" == "true" ]; then
+            PACKAGES_TO_CHECK_ARR+=('code-analyzer-retirejs-engine')
+          fi
+          PACKAGES_TO_CHECK_STR=$(IFS=' '; echo "${PACKAGES_TO_CHECK_ARR[*]}")
+          node ./.github/workflows/publish-package-to-npm/validate-packages-as-releasable.js "$PACKAGES_TO_CHECK_STR"
+          echo "packages_to_release=$PACKAGES_TO_CHECK_STR" >> "$GITHUB_OUTPUT"
+  prepare-release-branch:
+    runs-on: macos-latest
+    env:
+      GH_TOKEN: ${{ github.token }}
+    permissions:
+      contents: write
+    needs: validate-packages-as-releasable
+    outputs:
+      branch-name: ${{ steps.create-release-branch.outputs.branch_name }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+      - name: Create release branch
+        id: create-release-branch
+        run: |
+          NOW_TIMESTAMP=$(date +%s)
+          git checkout -b release/$NOW_TIMESTAMP
+          # Immediately push the branch with no changes, so GraphQL can push to it later.
+          git push --set-upstream origin release/$NOW_TIMESTAMP
+          # Output the branch name so that it can be used later.
+          echo "branch_name=release/$NOW_TIMESTAMP" >> "$GITHUB_OUTPUT"
+      - name: Strip '-SNAPSHOT' from to-be-released package versions
+        run: |
+          PACKAGE_NAMES_STRING="${{ needs.validate-packages-as-releasable.outputs.packages-to-release }}"
+          node ./.github/workflows/publish-package-to-npm/update-versions-in-released-packages.js "$PACKAGE_NAMES_STRING"
+      - name: Update inter-package dependencies
+        run: |
+          PACKAGES_TO_RELEASE_STRING="${{ needs.validate-packages-as-releasable.outputs.packages-to-release }}"
+          cd packages
+          ALL_PACKAGES=`ls`
+          cd ..
+          node ./.github/workflows/publish-package-to-npm/update-dependencies-on-released-packages.js "$PACKAGES_TO_RELEASE_STRING" "$ALL_PACKAGES"
+      - name: Build
+        run: |
+          npm install
+          npm run build
+          # No need to test; that comes later.
+      - name: Commit changes to release branch
+        run: |
+          # GraphQL needs to know what branch to push to.
+          BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
+          # GraphQL needs a message for the commit.
+          MESSAGE="Preparing Core Ecosystem for release"
+          # GraphQL needs the latest versions of all the package.json files, as Base64 encoded strings.
+          CORE_PACKAGE_JSON="$(cat packages/code-analyzer-core/package.json | base64)"
+          API_PACKAGE_JSON="$(cat packages/code-analyzer-engine-api/package.json | base64)"
+          ESLINT_PACKAGE_JSON="$(cat packages/code-analyzer-eslint-engine/package.json | base64)"
+          FLOWTEST_PACKAGE_JSON="$(cat packages/code-analyzer-flowtest-engine/package.json | base64)"
+          PMD_PACKAGE_JSON="$(cat packages/code-analyzer-pmd-engine/package.json | base64)"
+          REGEX_PACKAGE_JSON="$(cat packages/code-analyzer-regex-engine/package.json | base64)"
+          RETIREJS_PACKAGE_JSON="$(cat packages/code-analyzer-retirejs-engine/package.json | base64)"
+          TEMPLATE_PACKAGE_JSON="$(cat packages/T-E-M-P-L-A-T-E/package.json | base64)"
+          # GraphQL also needs the top-level package-lock.json
+          PACKAGE_LOCK_JSON="$(cat package-lock.json | base64)"
+          
+          gh api graphql -F message="$MESSAGE" -F oldOid=`git rev-parse HEAD` -F branch="$BRANCH_NAME" \
+          -F corePackage="$CORE_PACKAGE_JSON" \
+          -F apiPackage="$API_PACKAGE_JSON" \
+          -F eslintPackage="$ESLINT_PACKAGE_JSON" \
+          -F flowtestPackage="$FLOWTEST_PACKAGE_JSON" \
+          -F pmdPackage="$PMD_PACKAGE_JSON" \
+          -F regexPackage="$REGEX_PACKAGE_JSON" \
+          -F retirejsPackage="$RETIREJS_PACKAGE_JSON" \
+          -F templatePackage="$TEMPLATE_PACKAGE_JSON" \
+          -F packageLock="$PACKAGE_LOCK_JSON" \
+          -f query='
+            mutation ($message: String!, $oldOid: GitObjectID!, $branch: String!,
+                      $corePackage: Base64String!, $apiPackage: Base64String!, $eslintPackage: Base64String!,
+                      $flowtestPackage: Base64String!, $pmdPackage: Base64String!, $regexPackage: Base64String!,
+                      $retirejsPackage: Base64String!, $templatePackage: Base64String!, $packageLock: Base64String!) {
+              createCommitOnBranch(input: {
+                branch: {
+                  repositoryNameWithOwner: "forcedotcom/code-analyzer-core",
+                  branchName: $branch
+                },
+                message: {
+                  headline: $message
+                },
+                fileChanges: {
+                  additions: [
+                    {
+                      path: "packages/code-analyzer-core/package.json",
+                      contents: $corePackage
+                    }, {
+                      path: "packages/code-analyzer-engine-api/package.json",
+                      contents: $apiPackage
+                    }, {
+                      path: "packages/code-analyzer-eslint-engine/package.json",
+                      contents: $eslintPackage
+                    }, {
+                      path: "packages/code-analyzer-flowtest-engine/package.json",
+                      contents: $flowtestPackage
+                    }, {
+                      path: "packages/code-analyzer-pmd-engine/package.json",
+                      contents: $pmdPackage
+                    }, {
+                      path: "packages/code-analyzer-regex-engine/package.json",
+                      contents: $regexPackage
+                    }, {
+                      path: "packages/code-analyzer-retirejs-engine/package.json",
+                      contents: $retirejsPackage
+                    }, {
+                      path: "packages/T-E-M-P-L-A-T-E/package.json",
+                      contents: $templatePackage
+                    }, {
+                      path: "package-lock.json",
+                      contents: $packageLock
+                    }
+                  ]
+                },
+                expectedHeadOid: $oldOid
+              }) {
+                commit {
+                  id
+                }
+              }
+            }'
+  create-postrelease-pull-request:
+    runs-on: macos-latest
+    needs: [prepare-release-branch]
+    if: ${{ inputs.dryrun == false }} # A Dry Run doesn't release, so no PR should be made
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.prepare-release-branch.outputs.branch-name }}
+      - run: |
+          echo -e "This branch and PR were automatically created as part of a Package Publish.\n\
+          The branch increments the .version property of published packages from X.Y.Z-SNAPSHOT to X.Y.Z, and updates any\
+          inter-package dependencies appropriately.\n\
+          The narrow scope of these changes makes a merge conflict unlikely, but if one does occur, you should consult\
+          with the author of the conflicting change and decide what to do next. Ultimately it may make sense to not merge\
+          this pull request at all. Use your judgment." > body.txt
+          gh pr create -B dev -H ${{ needs.prepare-release-branch.outputs.branch-name }} --title "POSTRELEASE @W-XXXXXXXX@ Merging after ecosystem release" -F body.txt
diff --git a/.github/workflows/verify-pr.yml b/.github/workflows/verify-pr.yml
index 3568e10e..b9ff3549 100644
--- a/.github/workflows/verify-pr.yml
+++ b/.github/workflows/verify-pr.yml
@@ -79,4 +79,8 @@ jobs:
         with:
           python-version: 3.12
       - run: npm install
-      - run: npm run all
\ No newline at end of file
+      - run: npm run all
+  run_experiment:
+    uses: ./.github/workflows/experiment.yml
+    with:
+      code-analyzer-core: true
\ No newline at end of file