diff --git a/.github/workflows/cron-stale-prs.yml b/.github/workflows/cron-stale-prs.yml
deleted file mode 100644
index 01a9051c0b3..00000000000
--- a/.github/workflows/cron-stale-prs.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-on:
-  schedule:
-    - cron: '0 8 * * *'
-  workflow_dispatch:
-
-env:
-  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-  OWNER: ${{ github.repository_owner }}
-  REPO: ${{ github.event.repository.name }}
-
-jobs:
-  find_stale_prs:
-    runs-on: ubuntu-latest
-    permissions:
-      pull-requests: write
-    steps:
-      - shell: bash
-        run: |
-          stale_prs=$(gh pr list -R "$OWNER/$REPO" --json url,updatedAt,title,state,number,mergeable,labels,id,createdAt,author -L 1000 -s open -q '.|sort_by(.author.login)|.[]|(now - (.updatedAt|fromdate)) as $u|select(.state=="OPEN" and (.labels[].name|contains("merge")) and $u>86400)|{url:.url, author: .author.login, title: .title, updated: .updatedAt, u: $u, number: .number}'  | jq -c .)
-
-          if [[ "$stale_prs" != "" ]]; then
-            while IFS= read -r line; do
-                echo "Stale PR:  $line"
-                prNum=$(echo "$line" | jq -r .number)
-                prOpener=$(echo "$line" | jq -r .author)
-                gh pr comment -R "$OWNER/$REPO" $prNum -b "@${prOpener} - This PR appears to be stuck. It's had a merge label for > 24 hours"
-            done <<< "$stale_prs"
-            echo "detected stale PRs"
-            exit 1
-          else
-            echo "no stale PRs detected"
-            exit 0
-          fi
-      - name: notify on failure
-        if: failure()
-        uses: ./.github/actions/notify-status
-        with:
-          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
-          from: ${{ secrets.NOTIFY_EMAIL_FROM }}
-          to: ${{ secrets.NOTIFY_EMAIL_TO }}
-          password: ${{ secrets.NOTIFY_EMAIL_PASSWORD }}
diff --git a/.github/workflows/test-dapp-otc.yml b/.github/workflows/test-dapp-otc.yml
deleted file mode 100644
index fe83c6ce3b4..00000000000
--- a/.github/workflows/test-dapp-otc.yml
+++ /dev/null
@@ -1,82 +0,0 @@
-name: Test Dapp OTC Desk
-
-on:
-  pull_request:
-  merge_group:
-  schedule:
-    - cron: '17 6 * * *'
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-dapp:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: ['18.x']
-
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: 'true'
-          path: ./agoric-sdk
-      - uses: ./agoric-sdk/.github/actions/restore-node
-        with:
-          node-version: ${{ matrix.node-version }}
-          path: ./agoric-sdk
-
-      - name: yarn link
-        run: |
-          yarn link-cli ~/bin/agoric
-          echo "/home/runner/bin" >> $GITHUB_PATH
-        working-directory: ./agoric-sdk
-
-      # Select a branch on dapp to test against by adding text to the body of the
-      # pull request. For example: #dapp-encouragement-branch: zoe-release-0.7.0
-      # The default is 'main'
-      - name: Get the appropriate dapp branch
-        id: get-branch
-        uses: actions/github-script@v7
-        with:
-          result-encoding: string
-          script: |
-            let branch = 'main';
-            if (context.payload.pull_request) {
-              const { body } = context.payload.pull_request;
-              const regex = /^\#dapp-otc-branch:\s+(\S+)/m;
-              const result = regex.exec(body);
-              if (result) {
-                branch = result[1];
-              }
-            }
-            console.log(branch);
-            return branch;
-
-      - name: Check out dapp
-        uses: actions/checkout@v4
-        with:
-          repository: Agoric/dapp-otc
-          path: dapp
-          ref: ${{steps.get-branch.outputs.result}}
-
-      - name: Agoric install in dapp
-        run: agoric install
-        working-directory: ./dapp
-
-      - name: yarn build in dapp
-        run: yarn build
-        working-directory: ./dapp
-
-      - name: yarn test in dapp
-        run: yarn test
-        working-directory: ./dapp
-
-      - name: notify on failure
-        if: failure() && github.event_name != 'pull_request'
-        uses: ./agoric-sdk/.github/actions/notify-status
-        with:
-          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
-          from: ${{ secrets.NOTIFY_EMAIL_FROM }}
-          to: ${{ secrets.NOTIFY_EMAIL_TO }}
-          password: ${{ secrets.NOTIFY_EMAIL_PASSWORD }}
diff --git a/.github/workflows/test-dapp-pegasus.yml b/.github/workflows/test-dapp-pegasus.yml
deleted file mode 100644
index b1d51aece87..00000000000
--- a/.github/workflows/test-dapp-pegasus.yml
+++ /dev/null
@@ -1,82 +0,0 @@
-name: Test Dapp Pegasus
-
-on:
-  pull_request:
-  merge_group:
-  schedule:
-    - cron: '17 6 * * *'
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-dapp:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: ['18.x']
-
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: 'true'
-          path: ./agoric-sdk
-      - uses: ./agoric-sdk/.github/actions/restore-node
-        with:
-          node-version: ${{ matrix.node-version }}
-          path: ./agoric-sdk
-
-      - name: yarn link
-        run: |
-          yarn link-cli ~/bin/agoric
-          echo "/home/runner/bin" >> $GITHUB_PATH
-        working-directory: ./agoric-sdk
-
-      # Select a branch on dapp to test against by adding text to the body of the
-      # pull request. For example: #dapp-encouragement-branch: zoe-release-0.7.0
-      # The default is 'main'
-      - name: Get the appropriate dapp branch
-        id: get-branch
-        uses: actions/github-script@v7
-        with:
-          result-encoding: string
-          script: |
-            let branch = 'main';
-            if (context.payload.pull_request) {
-              const { body } = context.payload.pull_request;
-              const regex = /^\#dapp-pegasus-branch:\s+(\S+)/m;
-              const result = regex.exec(body);
-              if (result) {
-                branch = result[1];
-              }
-            }
-            console.log(branch);
-            return branch;
-
-      - name: Check out dapp
-        uses: actions/checkout@v4
-        with:
-          repository: Agoric/dapp-pegasus
-          path: dapp
-          ref: ${{steps.get-branch.outputs.result}}
-
-      - name: Agoric install in dapp
-        run: agoric install
-        working-directory: ./dapp
-
-      - name: yarn build in dapp
-        run: yarn build
-        working-directory: ./dapp
-
-      - name: yarn test in dapp
-        run: yarn test
-        working-directory: ./dapp
-
-      - name: notify on failure
-        if: failure() && github.event_name != 'pull_request'
-        uses: ./agoric-sdk/.github/actions/notify-status
-        with:
-          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
-          from: ${{ secrets.NOTIFY_EMAIL_FROM }}
-          to: ${{ secrets.NOTIFY_EMAIL_TO }}
-          password: ${{ secrets.NOTIFY_EMAIL_PASSWORD }}
diff --git a/.github/workflows/test-dapp-simple-exchange.yml b/.github/workflows/test-dapp-simple-exchange.yml
deleted file mode 100644
index 75ea21735a3..00000000000
--- a/.github/workflows/test-dapp-simple-exchange.yml
+++ /dev/null
@@ -1,82 +0,0 @@
-name: Test Dapp Simple Exchange
-
-on:
-  pull_request:
-  merge_group:
-  schedule:
-    - cron: '17 6 * * *'
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-dapp:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: ['18.x']
-
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: 'true'
-          path: ./agoric-sdk
-      - uses: ./agoric-sdk/.github/actions/restore-node
-        with:
-          node-version: ${{ matrix.node-version }}
-          path: ./agoric-sdk
-
-      - name: yarn link
-        run: |
-          yarn link-cli ~/bin/agoric
-          echo "/home/runner/bin" >> $GITHUB_PATH
-        working-directory: ./agoric-sdk
-
-      # Select a branch on dapp to test against by adding text to the body of the
-      # pull request. For example: #dapp-encouragement-branch: zoe-release-0.7.0
-      # The default is 'main'
-      - name: Get the appropriate dapp branch
-        id: get-branch
-        uses: actions/github-script@v7
-        with:
-          result-encoding: string
-          script: |
-            let branch = 'main';
-            if (context.payload.pull_request) {
-              const { body } = context.payload.pull_request;
-              const regex = /^\#dapp-simple-exchange-branch:\s+(\S+)/m;
-              const result = regex.exec(body);
-              if (result) {
-                branch = result[1];
-              }
-            }
-            console.log(branch);
-            return branch;
-
-      - name: Check out dapp
-        uses: actions/checkout@v4
-        with:
-          repository: Agoric/dapp-simple-exchange
-          path: dapp
-          ref: ${{steps.get-branch.outputs.result}}
-
-      - name: Agoric install in dapp
-        run: agoric install
-        working-directory: ./dapp
-
-      - name: yarn build in dapp
-        run: yarn build
-        working-directory: ./dapp
-
-      - name: yarn test in dapp
-        run: yarn test
-        working-directory: ./dapp
-
-      - name: notify on failure
-        if: failure() && github.event_name != 'pull_request'
-        uses: ./agoric-sdk/.github/actions/notify-status
-        with:
-          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
-          from: ${{ secrets.NOTIFY_EMAIL_FROM }}
-          to: ${{ secrets.NOTIFY_EMAIL_TO }}
-          password: ${{ secrets.NOTIFY_EMAIL_PASSWORD }}