diff --git a/.github/workflows/f6-1-patch-presentation-ci.yml b/.github/workflows/f6-1-patch-presentation-ci.yml
new file mode 100644
index 0000000..399140b
--- /dev/null
+++ b/.github/workflows/f6-1-patch-presentation-ci.yml
@@ -0,0 +1,72 @@
+name: F6.1 patch presentation CI
+
+on:
+  push:
+    branches:
+      - 'release/f6-1-presentation-territory'
+    paths:
+      - '.github/workflows/f6-1-patch-presentation-ci.yml'
+
+permissions:
+  contents: write
+
+jobs:
+  patch:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: release/f6-1-presentation-territory
+          fetch-depth: 0
+
+      - name: Update clean migration rehearsal contract
+        run: |
+          python - <<'PY'
+          from pathlib import Path
+          path=Path('.github/workflows/ci.yml')
+          text=path.read_text()
+          text=text.replace(
+            '# F5.1 intentionally ends with zero operational/domain instances. The\n          # technical family and finding masters remain, but territory preload,\n          # imports, applicability links and old audits are deliberately gone.',
+            '# F5.1 performs the historical clean start. F6.1 then seeds only the\n          # presentation territory approved by DH: 7 Departamentos, 64 Áreas,\n          # 230 Yacimientos and 12 real Empresas.'
+          )
+          text=text.replace(
+            '            territory_sources integer;\n',
+            '            territory_sources integer;\n            presentation_sources integer;\n'
+          )
+          old="""            IF domain_assets <> 0 THEN
+              RAISE EXCEPTION 'F5.1 clean start must contain 0 Assets, got %', domain_assets;
+            END IF;"""
+          new="""            IF domain_assets <> 313 THEN
+              RAISE EXCEPTION 'F6.1 presentation preload must contain 313 Assets, got %', domain_assets;
+            END IF;"""
+          if old not in text: raise SystemExit('domain asset CI contract not found')
+          text=text.replace(old,new)
+          old="""            SELECT COUNT(*) INTO territory_sources
+            FROM source_documents
+            WHERE document_number='DH-F5-TERRITORY';
+            IF territory_sources <> 0 THEN
+              RAISE EXCEPTION 'F5.1 must remove the old territory source preload, got % rows', territory_sources;
+            END IF;
+"""
+          new=old+"""
+            SELECT COUNT(*) INTO presentation_sources
+            FROM source_documents
+            WHERE document_number='DH-F6.1-PRESENTATION-TERRITORY-20260909';
+            IF presentation_sources <> 1 THEN
+              RAISE EXCEPTION 'F6.1 must contain exactly one presentation territory source, got %', presentation_sources;
+            END IF;
+"""
+          if old not in text: raise SystemExit('territory source CI contract not found')
+          path.write_text(text.replace(old,new))
+          Path('.github/workflows/f6-1-patch-presentation-ci.yml').unlink()
+          PY
+
+      - name: Commit CI contract
+        run: |
+          set -Eeuo pipefail
+          git config user.name 'github-actions[bot]'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add .github/workflows/ci.yml .github/workflows/f6-1-patch-presentation-ci.yml
+          git diff --cached --check
+          git commit -m 'ci(F6.1): rehearse presentation territory baseline'
+          git push origin HEAD:release/f6-1-presentation-territory