diff --git a/AGENTS.md b/AGENTS.md
index cf4b9a0..dbb2851 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,5 +1,11 @@
 # GovOPlaN Dataflow Codex Guide
 
+## Documentation Contract
+
+- Treat documentation as part of every behavior change. Update this module's manifest-driven `DocumentationTopic` contributions for affected user and administrator behavior.
+- Keep feature content here; `govoplan-docs` projects it without importing Dataflow internals.
+- Maintain a static user/admin baseline and run `/mnt/DATA/git/govoplan/tools/checks/check-manifest-shapes.py` after behavior or manifest changes.
+
 ## Scope
 
 This repository owns canonical pipeline definitions, immutable revisions,
diff --git a/src/govoplan_dataflow/backend/manifest.py b/src/govoplan_dataflow/backend/manifest.py
index facb7d2..2540fcd 100644
--- a/src/govoplan_dataflow/backend/manifest.py
+++ b/src/govoplan_dataflow/backend/manifest.py
@@ -29,6 +29,7 @@ from govoplan_core.core.modules import (
     PermissionDefinition,
     RoleTemplate,
 )
+from govoplan_core.core.provider_governance import declared_module_architecture
 from govoplan_core.core.datasources import (
     CAPABILITY_DATASOURCE_CATALOGUE,
     CAPABILITY_DATASOURCE_LIFECYCLE,
@@ -425,6 +426,19 @@ manifest = ModuleManifest(
         ),
     ),
     documentation=DOCUMENTATION,
+    architecture=declared_module_architecture(
+        layer="data_reporting_integration",
+        kind="runtime",
+        maturity="vertical_slice",
+        documentation_ref="README.md",
+        test_ref="tests/test_golden_flows.py",
+        known_limits=("Execution adapters and operator recovery evidence do not yet cover every declared node family.",),
+        owned_concepts=("dataflow definition", "dataflow revision", "dataflow run", "transformation graph"),
+        non_owned_concepts=("datasource binding", "connector transport", "report presentation", "workflow task"),
+        recovery_docs=("README.md",),
+        security_docs=("README.md",),
+        operations_docs=("README.md",),
+    ),
 )