diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 88148f78..ea930527 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -119,3 +119,36 @@ jobs:
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4
+
+  # Notify the skills repo that docs changed, so it can regenerate its
+  # docs-driven rules against the just-deployed content. See the
+  # generate.yaml workflow in HarperFast/skills (Phase 2 of the
+  # docs-driven-skills plan).
+  #
+  # Authenticates as the org-owned "harper-skills-sync" GitHub App, minting
+  # a token scoped to HarperFast/skills (the default GITHUB_TOKEN is scoped
+  # to this repo only and cannot dispatch cross-repo). The App must be
+  # installed on the skills repo; this repo holds its SKILLS_SYNC_APP_ID /
+  # SKILLS_SYNC_APP_PRIVATE_KEY secrets. If the App is ever removed, the
+  # skills repo's weekly cron is the safety net.
+  notify-skills:
+    needs: deploy
+    name: Notify skills repo
+    runs-on: ubuntu-latest
+    steps:
+      - name: Mint app token for skills
+        id: app-token
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
+        with:
+          app-id: ${{ secrets.SKILLS_SYNC_APP_ID }}
+          private-key: ${{ secrets.SKILLS_SYNC_APP_PRIVATE_KEY }}
+          owner: HarperFast
+          repositories: skills
+
+      - name: Dispatch docs-updated to HarperFast/skills
+        env:
+          GH_TOKEN: ${{ steps.app-token.outputs.token }}
+        run: |
+          gh api repos/HarperFast/skills/dispatches \
+            -f event_type=docs-updated \
+            -F client_payload[sha]=${{ github.sha }}