ci: add reboot and verification steps to nightly runner cleanup (drive-by clean…

.claude/skills/fast-push/SKILL.md

@@ -156,17 +156,6 @@ You MUST use the TaskCreate and TaskUpdate tools to track your progress. At the
 
    Use the commit messages and changed files to write a good title and summary.
 
-   **Add labels for non-trivial PRs:**
-   After creating or verifying the PR exists, assess whether the changes are non-trivial:
-   - Non-trivial = more than simple typo fixes, formatting, or config changes
-   - Non-trivial = any code logic changes, new features, bug fixes, refactoring
-
-   For non-trivial PRs, add the `cc:request` label to request code review:
-
-   ```
-   gh pr edit --add-label "cc:request"
-   ```
-
    **Remove review-issue label:**
    After pushing, remove the `needs-human:review-issue` label if it exists (this label indicates the issue needed human review before work started, which is now complete):
 

.github/workflows/nightly-runner-cleanup.yml

 # Nightly disk cleanup for self-hosted macOS CI runners.
 # Runs at 4:00 AM PST to prevent disk exhaustion from CI workloads.
+# After cleanup, reboots runners, then a verification job checks disk space.
 # Safe to run manually via workflow_dispatch for testing.
+#
+# NOTE: Runners must have the GitHub Actions runner service configured as a
+# LaunchDaemon (or equivalent) so that it auto-starts after reboot.
+# Without this, the verify job will hang waiting for a runner that never
+# re-registers with GitHub Actions.
 
 name: Nightly Runner Cleanup
 
@@ -25,3 +31,25 @@ jobs:
         env:
           CI_NIGHTLY_CLEANUP: "1"
         run: bash scripts/ci-cleanup-macos.sh
+
+      - name: Reboot runner
+        run: sudo reboot
+
+  verify:
+    needs: cleanup
+    # Run even if cleanup "fails" (reboot kills the runner mid-job), but still
+    # respect manual workflow cancellation.
+    if: ${{ !cancelled() }}
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        runner: [ci1, ci2, ci3]
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - name: Print available disk space
+        run: |
+          echo "=== Post-Reboot Disk Space ==="
+          df -h /
+          echo ""
+          echo "Available space: $(df -h / | tail -1 | awk '{print $4}')"