diff --git a/.github/workflows/agentic_v2_builder.yml b/.github/workflows/agentic_v2_builder.yml
index c45d3a41..c13033f8 100644
--- a/.github/workflows/agentic_v2_builder.yml
+++ b/.github/workflows/agentic_v2_builder.yml
@@ -47,7 +47,7 @@ jobs:
     strategy:
       matrix:
         shard: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63]
-      max-parallel: 3
+      max-parallel: 2
       fail-fast: false
     steps:
       - name: Repository Synchronization
@@ -72,7 +72,7 @@ jobs:
           GEMINI_API_KEY_1: ${{ secrets.GEMINI_API_KEY_1 }}
           GEMINI_API_KEY_2: ${{ secrets.GEMINI_API_KEY_2 }}
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          ACTIVATE_BACKUP_KEY: ${{ github.event.inputs.activate_backup_key || 'false' }}
+          ACTIVATE_BACKUP_KEY: ${{ github.event_name == 'push' && 'true' || github.event.inputs.activate_backup_key || 'false' }}
           FORCE_FULL_CHECK: ${{ github.event.inputs.force_full_check || 'false' }}
           FORCE_EVAL: ${{ github.event.inputs.force_reevaluate || 'false' }}
           ENRICH_METADATA: ${{ github.event.inputs.enrich_metadata || 'false' }}