diff --git a/inc/Runtime/AgentsMdSections.php b/inc/Runtime/AgentsMdSections.php
index e18401f..325b87f 100644
--- a/inc/Runtime/AgentsMdSections.php
+++ b/inc/Runtime/AgentsMdSections.php
@@ -71,6 +71,9 @@ private static function register_auto_generated_marker( string $wp ): void {
 			}, array(
 				'label'       => 'Auto-generated marker',
 				'description' => 'HTML-comment header signalling that AGENTS.md is composed from registered sections.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'generated',
+				'conditions'  => 'Always registered when Data Machine Code and composable memory section registration are available.',
 			)
 		);
 	}
@@ -138,6 +141,9 @@ private static function register_datamachine_section( string $wp ): void {
 			}, array(
 				'label'       => 'Data Machine',
 				'description' => 'Memory, automation, workspace, and system operations.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'snapshot',
+				'conditions'  => 'Always registered when Data Machine Code and composable memory section registration are available.',
 			)
 		);
 	}
@@ -149,6 +155,9 @@ private static function register_workspace_inventory_section( string $wp ): void
 			}, array(
 				'label'       => 'Workspace Inventory',
 				'description' => 'Live snapshot of cloned repos + active worktrees in the workspace.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'snapshot',
+				'conditions'  => 'Registered when Data Machine Code is active; content is omitted when no workspace inventory is available.',
 			)
 		);
 	}
@@ -166,6 +175,9 @@ private static function register_abilities_section(): void {
 			}, array(
 				'label'       => 'Abilities',
 				'description' => 'WordPress Abilities API discovery.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'static',
+				'conditions'  => 'Always registered when Data Machine Code and composable memory section registration are available.',
 			)
 		);
 	}
@@ -185,6 +197,9 @@ private static function register_wordpress_source_section(): void {
 			}, array(
 				'label'       => 'WordPress Source',
 				'description' => 'Pointers to WordPress source directories.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'static',
+				'conditions'  => 'Always registered when Data Machine Code and composable memory section registration are available.',
 			)
 		);
 	}
@@ -208,6 +223,9 @@ private static function register_multisite_section( string $wp ): void {
 			}, array(
 				'label'       => 'Multisite',
 				'description' => 'Multisite-specific WP-CLI guidance.',
+				'owner'       => 'data-machine-code',
+				'freshness'   => 'static',
+				'conditions'  => 'Only registered on multisite installs.',
 			)
 		);
 	}
diff --git a/tests/smoke-agents-md-marker.php b/tests/smoke-agents-md-marker.php
index 5dc9495..e419bf2 100644
--- a/tests/smoke-agents-md-marker.php
+++ b/tests/smoke-agents-md-marker.php
@@ -53,6 +53,11 @@
 $expected_inventory_refresh = 'datamachine memory compose AGENTS.md{$agent_suffix}';
 $expected_abilities_note    = 'does not currently register a WP-CLI abilities discovery command';
 $stale_abilities_cli        = 'help abilities';
+$expected_section_owner     = "'owner'       => 'data-machine-code'";
+$expected_snapshot_fresh    = "'freshness'   => 'snapshot'";
+$expected_static_fresh      = "'freshness'   => 'static'";
+$expected_generated_fresh   = "'freshness'   => 'generated'";
+$expected_multisite_cond    = "'conditions'  => 'Only registered on multisite installs.'";
 
 $assert(
     'auto-generated marker uses memory compose command',
@@ -110,6 +115,26 @@
     'GitSync guidance distinguishes compact sync family',
     str_contains($source, $expected_gitsync_cli)
 );
+$assert(
+    'AGENTS.md sections declare Data Machine Code ownership',
+    6 === substr_count($source, $expected_section_owner)
+);
+$assert(
+    'AGENTS.md sections declare generated freshness for compose marker',
+    str_contains($source, $expected_generated_fresh)
+);
+$assert(
+    'AGENTS.md sections declare snapshot freshness for dynamic workspace guidance',
+    2 === substr_count($source, $expected_snapshot_fresh)
+);
+$assert(
+    'AGENTS.md sections declare static freshness for stable guidance',
+    3 === substr_count($source, $expected_static_fresh)
+);
+$assert(
+    'multisite section documents its registration condition',
+    str_contains($source, $expected_multisite_cond)
+);
 $assert(
     'plugin entrypoint delegates AGENTS.md section registration',
     str_contains($entrypoint, 'DataMachineCode\\Runtime\\AgentsMdSections')