diff --git a/.github/workflows/coverage-report.yml b/.github/workflows/coverage-report.yml
index 0d00c3adb1..8df9dce719 100644
--- a/.github/workflows/coverage-report.yml
+++ b/.github/workflows/coverage-report.yml
@@ -20,15 +20,26 @@ jobs:
           path: coverage/
 
       - name: Fetch baseline coverage from GitHub Pages
+        id: baseline
+        env:
+          REPOSITORY: ${{ github.repository }}
+          REPOSITORY_OWNER: ${{ github.repository_owner }}
         run: |
+          url="https://${REPOSITORY_OWNER}.github.io/${REPOSITORY#*/}/coverage/coverage-summary.json"
+
           mkdir -p coverage-base
-          curl -fsSL https://metamask.github.io/ocap-kernel/coverage/coverage-summary.json \
-            -o coverage-base/coverage-summary.json || { echo "No baseline coverage found"; exit 1; }
+          if curl -fsSL "$url" -o coverage-base/coverage-summary.json; then
+            echo "path=coverage-base/coverage-summary.json" >> "$GITHUB_OUTPUT"
+          else
+            echo "::warning::No baseline coverage found at $url; reporting without trends."
+            echo "path=" >> "$GITHUB_OUTPUT"
+          fi
 
       - name: Post coverage report
         uses: davelosert/vitest-coverage-report-action@5b6122e3a819a3be7b27fc961b7faafb3bf00e4d
         with:
           json-summary-path: coverage/coverage-summary.json
           json-final-path: coverage/coverage-final.json
-          json-summary-compare-path: coverage-base/coverage-summary.json
+          # An empty path disables trend comparison.
+          json-summary-compare-path: ${{ steps.baseline.outputs.path }}
           file-coverage-mode: changes
diff --git a/.github/workflows/publish-preview.yml b/.github/workflows/publish-preview.yml
deleted file mode 100644
index 5181733876..0000000000
--- a/.github/workflows/publish-preview.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-name: Publish a preview build
-
-on:
-  issue_comment:
-    types: created
-
-jobs:
-  is-fork-pull-request:
-    name: Determine whether this issue comment was on a pull request from a fork
-    if: ${{ github.event.issue.pull_request && startsWith(github.event.comment.body, '@metamaskbot publish-preview') }}
-    runs-on: ubuntu-latest
-    outputs:
-      IS_FORK: ${{ steps.is-fork.outputs.IS_FORK }}
-    steps:
-      - uses: actions/checkout@v7
-      - name: Determine whether this PR is from a fork
-        id: is-fork
-        run: echo "IS_FORK=$(gh pr view --json isCrossRepository --jq '.isCrossRepository' "${PR_NUMBER}" )" >> "$GITHUB_OUTPUT"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          PR_NUMBER: ${{ github.event.issue.number }}
-
-  publish-preview:
-    name: Publish build preview
-    needs: is-fork-pull-request
-    permissions:
-      pull-requests: write
-    # This ensures we don't publish on forks. We can't trust forks with this token.
-    if: ${{ needs.is-fork-pull-request.outputs.IS_FORK == 'false' }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v7
-      - name: Check out pull request
-        run: gh pr checkout "${PR_NUMBER}"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          PR_NUMBER: ${{ github.event.issue.number }}
-      - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
-        with:
-          is-high-risk-environment: true
-      - name: Get commit SHA
-        id: commit-sha
-        run: echo "COMMIT_SHA=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
-      - run: yarn prepare-preview-builds @metamask-previews ${{ steps.commit-sha.outputs.COMMIT_SHA }}
-      - run: yarn build
-      - name: Publish preview build
-        run: yarn publish-previews
-        env:
-          YARN_NPM_AUTH_TOKEN: ${{ secrets.PUBLISH_PREVIEW_NPM_TOKEN }}
-      - name: Generate preview build message
-        run: yarn ts-node scripts/generate-preview-build-message.ts
-      - name: Post build preview in comment
-        run: gh pr comment "${PR_NUMBER}" --body-file preview-build-message.txt
-        env:
-          COMMIT_SHA: ${{ steps.commit-sha.outputs.COMMIT_SHA }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          PR_NUMBER: ${{ github.event.issue.number }}
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index 63c98b3338..ca9af9783c 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -6,7 +6,7 @@ on:
       NPM_TOKEN:
         required: true
       SLACK_WEBHOOK_URL:
-        required: true
+        required: false
 
 jobs:
   publish-release:
diff --git a/packages/agentmask/package.json b/packages/agentmask/package.json
index 19684ff03e..abf0f7e847 100644
--- a/packages/agentmask/package.json
+++ b/packages/agentmask/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/create-package/package.json b/packages/create-package/package.json
index c9fe7ddc8d..288938f821 100644
--- a/packages/create-package/package.json
+++ b/packages/create-package/package.json
@@ -37,7 +37,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/evm-wallet-experiment/package.json b/packages/evm-wallet-experiment/package.json
index d504f3f01b..7bf2c7347d 100644
--- a/packages/evm-wallet-experiment/package.json
+++ b/packages/evm-wallet-experiment/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/extension/package.json b/packages/extension/package.json
index 226563facd..87470cc094 100644
--- a/packages/extension/package.json
+++ b/packages/extension/package.json
@@ -27,7 +27,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "postinstall": "../../scripts/playwright-install.sh",
     "start": "./scripts/start.sh",
     "test": "vitest run --config vitest.config.ts",
diff --git a/packages/kernel-agents-repl/package.json b/packages/kernel-agents-repl/package.json
index 6a52d9b86b..ff684d3d68 100644
--- a/packages/kernel-agents-repl/package.json
+++ b/packages/kernel-agents-repl/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-agents/package.json b/packages/kernel-agents/package.json
index a6b65725b3..acb733a3ee 100644
--- a/packages/kernel-agents/package.json
+++ b/packages/kernel-agents/package.json
@@ -148,7 +148,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-browser-runtime/package.json b/packages/kernel-browser-runtime/package.json
index 92cb9cf778..0e6464c5aa 100644
--- a/packages/kernel-browser-runtime/package.json
+++ b/packages/kernel-browser-runtime/package.json
@@ -52,7 +52,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:build": "tsx ./test/build-tests.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
diff --git a/packages/kernel-cli/package.json b/packages/kernel-cli/package.json
index b5031b6901..279f39ac88 100644
--- a/packages/kernel-cli/package.json
+++ b/packages/kernel-cli/package.json
@@ -34,7 +34,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-errors/package.json b/packages/kernel-errors/package.json
index 24b74baf1b..c8de71f7e0 100644
--- a/packages/kernel-errors/package.json
+++ b/packages/kernel-errors/package.json
@@ -48,7 +48,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-language-model-service/package.json b/packages/kernel-language-model-service/package.json
index efea3c81c8..8a27529fe2 100644
--- a/packages/kernel-language-model-service/package.json
+++ b/packages/kernel-language-model-service/package.json
@@ -78,7 +78,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:e2e": "vitest run --config vitest.config.e2e.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
diff --git a/packages/kernel-node-runtime/package.json b/packages/kernel-node-runtime/package.json
index 6540dff953..d26da22b4c 100644
--- a/packages/kernel-node-runtime/package.json
+++ b/packages/kernel-node-runtime/package.json
@@ -58,7 +58,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:e2e": "vitest run --config vitest.config.e2e.ts",
     "test:e2e:ci": "./scripts/test-e2e-ci.sh",
diff --git a/packages/kernel-platforms/package.json b/packages/kernel-platforms/package.json
index 583c4800e8..40b9bdcbd4 100644
--- a/packages/kernel-platforms/package.json
+++ b/packages/kernel-platforms/package.json
@@ -58,7 +58,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-rpc-methods/package.json b/packages/kernel-rpc-methods/package.json
index 5d471bd527..1254f38497 100644
--- a/packages/kernel-rpc-methods/package.json
+++ b/packages/kernel-rpc-methods/package.json
@@ -48,7 +48,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-shims/package.json b/packages/kernel-shims/package.json
index 1cdbef69d5..05def590af 100644
--- a/packages/kernel-shims/package.json
+++ b/packages/kernel-shims/package.json
@@ -41,7 +41,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-store/package.json b/packages/kernel-store/package.json
index 638ab1fcdb..0fe85b80a2 100644
--- a/packages/kernel-store/package.json
+++ b/packages/kernel-store/package.json
@@ -69,7 +69,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-test/package.json b/packages/kernel-test/package.json
index b0ef8e0dd7..d1cf39704f 100644
--- a/packages/kernel-test/package.json
+++ b/packages/kernel-test/package.json
@@ -37,7 +37,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-ui/package.json b/packages/kernel-ui/package.json
index 54a6128fa5..7ea6d92e5a 100644
--- a/packages/kernel-ui/package.json
+++ b/packages/kernel-ui/package.json
@@ -51,7 +51,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/kernel-utils/package.json b/packages/kernel-utils/package.json
index 9ea10f3982..55a700dc8b 100644
--- a/packages/kernel-utils/package.json
+++ b/packages/kernel-utils/package.json
@@ -118,7 +118,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/llm-bridge/package.json b/packages/llm-bridge/package.json
index d6674c6fd0..d0318eaa81 100644
--- a/packages/llm-bridge/package.json
+++ b/packages/llm-bridge/package.json
@@ -41,7 +41,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/logger/package.json b/packages/logger/package.json
index 9ce3c27216..554343d9a1 100644
--- a/packages/logger/package.json
+++ b/packages/logger/package.json
@@ -58,7 +58,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/nodejs-test-workers/package.json b/packages/nodejs-test-workers/package.json
index 8c68b44206..530252a6c5 100644
--- a/packages/nodejs-test-workers/package.json
+++ b/packages/nodejs-test-workers/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/ocap-jsonrpc-vat/package.json b/packages/ocap-jsonrpc-vat/package.json
index 68912a38d7..fd5f69a33a 100644
--- a/packages/ocap-jsonrpc-vat/package.json
+++ b/packages/ocap-jsonrpc-vat/package.json
@@ -39,7 +39,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/ocap-kernel/package.json b/packages/ocap-kernel/package.json
index ad655d1ecd..5448c444c6 100644
--- a/packages/ocap-kernel/package.json
+++ b/packages/ocap-kernel/package.json
@@ -59,7 +59,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/omnium-gatherum/package.json b/packages/omnium-gatherum/package.json
index 780a8aae53..155d95dace 100644
--- a/packages/omnium-gatherum/package.json
+++ b/packages/omnium-gatherum/package.json
@@ -28,7 +28,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "postinstall": "../../scripts/playwright-install.sh",
     "start": "./scripts/start.sh",
     "test": "vitest run --config vitest.config.ts",
diff --git a/packages/remote-iterables/package.json b/packages/remote-iterables/package.json
index ec54ab5566..38b37771ba 100644
--- a/packages/remote-iterables/package.json
+++ b/packages/remote-iterables/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/sample-services/package.json b/packages/sample-services/package.json
index 423fd32c3a..47e8ff124d 100644
--- a/packages/sample-services/package.json
+++ b/packages/sample-services/package.json
@@ -39,7 +39,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/service-discovery-types/package.json b/packages/service-discovery-types/package.json
index ed516dd273..1d10b27db6 100644
--- a/packages/service-discovery-types/package.json
+++ b/packages/service-discovery-types/package.json
@@ -43,7 +43,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/service-matcher/package.json b/packages/service-matcher/package.json
index 46033f59c5..2f3828dcb2 100644
--- a/packages/service-matcher/package.json
+++ b/packages/service-matcher/package.json
@@ -39,7 +39,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/sheaves/package.json b/packages/sheaves/package.json
index 72d2e24a97..b8b867321a 100644
--- a/packages/sheaves/package.json
+++ b/packages/sheaves/package.json
@@ -48,7 +48,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/packages/streams/package.json b/packages/streams/package.json
index 853b587f63..21063fc55c 100644
--- a/packages/streams/package.json
+++ b/packages/streams/package.json
@@ -59,7 +59,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "postinstall": "../../scripts/playwright-install.sh",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
diff --git a/packages/template-package/package.json b/packages/template-package/package.json
index ea9abbd0b6..446335bc8b 100644
--- a/packages/template-package/package.json
+++ b/packages/template-package/package.json
@@ -38,7 +38,6 @@
     "lint:eslint": "eslint . --cache",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:misc --write && yarn constraints --fix && yarn lint:dependencies",
     "lint:misc": "prettier --no-error-on-unmatched-pattern '**/*.json' '**/*.md' '**/*.html' '!**/CHANGELOG.old.md' '**/*.yml' '!.yarnrc.yml' '!merged-packages/**' --ignore-path ../../.gitignore --log-level error",
-    "publish:preview": "yarn npm publish --tag preview",
     "test": "vitest run --config vitest.config.ts",
     "test:clean": "yarn test --no-cache --coverage.clean",
     "test:dev": "yarn test --mode development",
diff --git a/yarn.config.cjs b/yarn.config.cjs
index 36f4a2161f..f093f49b8f 100644
--- a/yarn.config.cjs
+++ b/yarn.config.cjs
@@ -176,13 +176,6 @@ module.exports = defineConfig({
           // Published packages must not have side effects.
           expectWorkspaceField(workspace, 'sideEffects', false);
 
-          // All published packages must have the same "publish:preview" script.
-          expectWorkspaceField(
-            workspace,
-            'scripts.publish:preview',
-            'yarn npm publish --tag preview',
-          );
-
           // All non-root package must have valid "changelog:update" and
           // "changelog:validate" scripts.
           expectCorrectWorkspaceChangelogScripts(workspace);