diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 88f9c7d..4feb938 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -79,3 +79,34 @@ jobs:
 
       - name: Build
         run: pnpm --filter sidewalk-web build
+
+  mobile:
+    name: Mobile
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: .
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Lint
+        run: pnpm --filter mobile lint
+
+      - name: Type check
+        run: pnpm --filter mobile typecheck
diff --git a/README.md b/README.md
index 38bd13c..7672773 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,10 @@ Mobile app:
 pnpm dev:mobile
 ```
 
+## Demo runbook
+
+Use [docs/phase-1-demo-runbook.md](./docs/phase-1-demo-runbook.md) for the current end-to-end demo path across API, web, and mobile.
+
 ## Local quality checks
 
 Run the full workspace checks:
diff --git a/docs/phase-1-demo-runbook.md b/docs/phase-1-demo-runbook.md
new file mode 100644
index 0000000..1ecea82
--- /dev/null
+++ b/docs/phase-1-demo-runbook.md
@@ -0,0 +1,39 @@
+# Phase 1 Demo Runbook
+
+This runbook covers the current Phase 1 demo path using the API, web app, and mobile app.
+
+## Environment
+
+- Install dependencies with `pnpm install`
+- Ensure MongoDB and Redis are available
+- Configure the API from `apps/api/.env.example`
+- Configure the mobile app from `apps/mobile/.env.example`
+
+## Start the stack
+
+1. Run `pnpm --filter sidewalk-api db:seed`
+2. Run `pnpm dev:api`
+3. Run `pnpm dev:web`
+4. Run `pnpm dev:mobile`
+
+## Web flow
+
+1. Open `http://localhost:3000/diagnostics`
+2. Verify the health card shows API connectivity
+3. Open the OTP auth flow and sign in
+4. Create a report from `/dashboard/reports/new`
+5. Open the report detail page
+6. If using an admin account, open the moderation queue and submit a status update
+
+## Mobile flow
+
+1. Launch the Expo app
+2. Request and verify an OTP from the login screen
+3. Submit a report from the Reports tab
+4. Reopen the app to confirm the stored session restores
+
+## Known limitations
+
+- OTP delivery depends on the configured email transport
+- The admin anchoring flow still expects the original Stellar transaction hash
+- Mobile media capture and richer report history are still evolving beyond the core Phase 1 demo