diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec0ac7ef09d..f5d7e6d489b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -305,7 +305,7 @@ jobs:
     permissions:
       contents: read
     if: github.event_name != 'pull_request' || !github.event.pull_request.draft
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     env:
       PRE_COMMIT_HOME: .cache/pre-commit-security-fast
@@ -396,7 +396,7 @@ jobs:
     permissions:
       contents: read
     if: github.event_name != 'pull_request' || !github.event.pull_request.draft
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 10
     steps:
       - name: Checkout
@@ -420,7 +420,7 @@ jobs:
     permissions: {}
     needs: [security-scm-fast, security-dependency-audit]
     if: always() && (github.event_name != 'pull_request' || !github.event.pull_request.draft)
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify fast security jobs
@@ -453,7 +453,7 @@ jobs:
       contents: read
     needs: [preflight]
     if: needs.preflight.outputs.run_build_artifacts == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     steps:
       - name: Checkout
@@ -550,7 +550,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -638,7 +638,7 @@ jobs:
     name: ${{ matrix.checkName }}
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -722,7 +722,7 @@ jobs:
     name: checks-fast-contracts-channels
     needs: [preflight, checks-fast-channel-contracts-shard]
     if: always() && needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify channel contract shards
@@ -744,7 +744,7 @@ jobs:
     name: "checks-fast-protocol"
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 30
     steps:
       - name: Checkout
@@ -809,7 +809,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -879,7 +879,7 @@ jobs:
     name: checks-node-extensions
     needs: [preflight, checks-node-extensions-shard]
     if: always() && needs.preflight.outputs.run_checks_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify extension shards
@@ -897,7 +897,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight, build-artifacts]
     if: always() && needs.preflight.outputs.run_checks == 'true' && needs.build-artifacts.result == 'success'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -1012,7 +1012,7 @@ jobs:
     name: checks-node-compat-node22
     needs: [preflight]
     if: needs.preflight.outputs.run_node == 'true' && github.event_name == 'push'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     steps:
       - name: Checkout
@@ -1089,7 +1089,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_node_core_nondist == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -1213,7 +1213,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight, build-artifacts]
     if: always() && needs.preflight.outputs.run_checks_node_core_dist == 'true' && needs.build-artifacts.result == 'success'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -1357,7 +1357,7 @@ jobs:
     name: checks-node-core
     needs: [preflight, checks-node-core-test-nondist-shard, checks-node-core-test-dist-shard]
     if: always() && needs.preflight.outputs.run_checks == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify node test shards
@@ -1382,7 +1382,7 @@ jobs:
     name: "extension-fast"
     needs: [preflight]
     if: needs.preflight.outputs.run_extension_fast == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -1453,7 +1453,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: always() && needs.preflight.outputs.run_check == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     strategy:
       fail-fast: false
@@ -1568,7 +1568,7 @@ jobs:
     name: "check"
     needs: [preflight, check-shard]
     if: always() && needs.preflight.outputs.run_check == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify check shards
@@ -1586,7 +1586,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: always() && needs.preflight.outputs.run_check_additional == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     strategy:
       fail-fast: false
@@ -1788,7 +1788,7 @@ jobs:
     name: "check-additional"
     needs: [preflight, check-additional-shard]
     if: always() && needs.preflight.outputs.run_check_additional == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 5
     steps:
       - name: Verify additional check shards
@@ -1806,7 +1806,7 @@ jobs:
     name: "build-smoke"
     needs: [preflight, build-artifacts]
     if: always() && needs.preflight.outputs.run_build_smoke == 'true' && (github.event_name != 'push' || needs.build-artifacts.result == 'success')
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     steps:
       - name: Checkout
@@ -1902,7 +1902,7 @@ jobs:
       contents: read
     needs: [preflight]
     if: needs.preflight.outputs.run_check_docs == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     steps:
       - name: Checkout
@@ -1966,7 +1966,7 @@ jobs:
       contents: read
     needs: [preflight]
     if: needs.preflight.outputs.run_skills_python_job == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     steps:
       - name: Checkout
@@ -1997,11 +1997,11 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: needs.preflight.outputs.run_checks_windows == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-32vcpu-windows-2025' || 'windows-2025' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-windows-2025' || 'windows-2025' }}
     timeout-minutes: 60
     env:
       NODE_OPTIONS: --max-old-space-size=6144
-      # Keep total concurrency predictable on the 32 vCPU runner.
+      # Keep total concurrency predictable on the smaller Windows runner.
       OPENCLAW_VITEST_MAX_WORKERS: 1
       OPENCLAW_TEST_SKIP_FULL_EXTENSIONS_SHARD: 1
     defaults:
@@ -2100,7 +2100,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight, build-artifacts]
     if: always() && needs.preflight.outputs.run_macos_node == 'true' && needs.build-artifacts.result == 'success'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-12vcpu-macos-latest' || 'macos-latest' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-6vcpu-macos-latest' || 'macos-latest' }}
     timeout-minutes: 20
     strategy:
       fail-fast: false
@@ -2251,7 +2251,7 @@ jobs:
     name: ${{ matrix.check_name }}
     needs: [preflight]
     if: needs.preflight.outputs.run_android_job == 'true'
-    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-16vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
+    runs-on: ${{ github.repository == 'openclaw/openclaw' && 'blacksmith-8vcpu-ubuntu-2404' || 'ubuntu-24.04' }}
     timeout-minutes: 20
     strategy:
       fail-fast: false
diff --git a/docs/ci.md b/docs/ci.md
index f6d55a74925..451e9e0b5b5 100644
--- a/docs/ci.md
+++ b/docs/ci.md
@@ -60,9 +60,10 @@ GitHub may mark superseded jobs as `cancelled` when a newer push lands on the sa
 | Runner                           | Jobs                                                                                                                                      |
 | -------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
 | `ubuntu-24.04`                   | `preflight`; install-smoke preflight also uses GitHub-hosted Ubuntu so the Blacksmith matrix can queue earlier                            |
-| `blacksmith-16vcpu-ubuntu-2404`  | `security-scm-fast`, `security-dependency-audit`, `security-fast`, `build-artifacts`, Linux checks, docs checks, Python skills, `android` |
-| `blacksmith-32vcpu-windows-2025` | `checks-windows`                                                                                                                          |
-| `blacksmith-12vcpu-macos-latest` | `macos-node`, `macos-swift` on `openclaw/openclaw`; forks fall back to `macos-latest`                                                     |
+| `blacksmith-8vcpu-ubuntu-2404`   | `security-scm-fast`, `security-dependency-audit`, `security-fast`, `build-artifacts`, Linux checks, docs checks, Python skills, `android` |
+| `blacksmith-8vcpu-windows-2025`  | `checks-windows`                                                                                                                          |
+| `blacksmith-6vcpu-macos-latest`  | `macos-node` on `openclaw/openclaw`; forks fall back to `macos-latest`                                                                    |
+| `blacksmith-12vcpu-macos-latest` | `macos-swift` on `openclaw/openclaw`; forks fall back to `macos-latest`                                                                   |
 
 ## Local Equivalents