Decouple DMC guidance from Homeboy (#1318)

Author: chubes4

inc/Runtime/AgentsMdSections.php

@@ -81,7 +81,7 @@ private static function register_datamachine_section( string $wp ): void {
 				return <<<MD
 ## Data Machine Code
 
-{$workspace_policy_intro}DMC owns authoritative repository, primary-checkout, worktree, and GitHub workspace state. Homeboy consumes DMC-managed worktrees for agent execution, deterministic gates, promotion, evidence, and publication.
+Data Machine Code provides repository, primary-checkout, worktree, and GitHub workspace management. {$workspace_policy_intro}
 
 **Default routing**
 - Inspect workspace state: `{$wp} datamachine-code workspace list`, `{$wp} datamachine-code workspace show <repo>`, or `{$wp} datamachine-code workspace hygiene`
@@ -99,7 +99,7 @@ private static function register_datamachine_section( string $wp ): void {
 MD;
 			}, array(
 				'label'       => 'Data Machine Code',
-				'description' => 'Authoritative workspace routing, lifecycle, and safety guidance.',
+				'description' => 'Data Machine Code workspace lifecycle, GitHub, and safety guidance.',
 				'owner'       => 'data-machine-code',
 				'freshness'   => 'snapshot',
 				'conditions'  => 'Always registered when Data Machine Code and composable memory section registration are available.',
@@ -108,7 +108,7 @@ private static function register_datamachine_section( string $wp ): void {
 	}
 
 	private static function render_workspace_policy_intro( string $workspace_path ): string {
-		$default = "All code changes happen in Data Machine Code worktrees. The controller workspace root is `{$workspace_path}`. ";
+		$default = "When using Data Machine Code to manage code changes, work in a Data Machine Code worktree. The controller workspace root is `{$workspace_path}`. ";
 
 		/**
 		 * Filters the site-owned workspace policy sentence rendered before DMC command facts.

tests/smoke-agents-md-sections.php

@@ -84,11 +84,27 @@ function assert_not_contains( string $needle, string $haystack, string $message
 	$default = $render();
 
 	assert_contains(
-		'All code changes happen in Data Machine Code worktrees. The controller workspace root is `unavailable; run datamachine-code workspace path to diagnose`.',
+		'Data Machine Code provides repository, primary-checkout, worktree, and GitHub workspace management.',
+		$default,
+		'DMC standalone capabilities missing'
+	);
+	assert_contains(
+		'When using Data Machine Code to manage code changes, work in a Data Machine Code worktree. The controller workspace root is `unavailable; run datamachine-code workspace path to diagnose`.',
 		$default,
 		'default workspace policy intro changed'
 	);
-	assert_contains('DMC owns authoritative repository, primary-checkout, worktree, and GitHub workspace state. Homeboy consumes DMC-managed worktrees', $default, 'DMC/Homeboy ownership boundary missing');
+	assert_not_contains('Homeboy', $default, 'DMC guidance must not couple to Homeboy');
+	assert_not_contains('All code changes happen', $default, 'DMC guidance must not claim universal routing authority');
+	assert_not_contains(
+		'Homeboy',
+		json_encode($sections['datamachine-code']['metadata'], JSON_THROW_ON_ERROR),
+		'DMC section metadata must not couple to Homeboy'
+	);
+	assert_contains(
+		'Data Machine Code workspace lifecycle, GitHub, and safety guidance.',
+		$sections['datamachine-code']['metadata']['description'],
+		'DMC section metadata must describe DMC only'
+	);
 	assert_contains(
 		'- **Primary is read-only.** Never edit `<workspace>/<repo>` (no `@slug`).',
 		$default,
@@ -116,7 +132,7 @@ static function (): string {
 	);
 
 	$filtered = $render();
-	assert_contains('Use local project policy for `unavailable; run datamachine-code workspace path to diagnose`. DMC owns authoritative repository', $filtered, 'workspace policy intro filter was not applied');
+	assert_contains('Use local project policy for `unavailable; run datamachine-code workspace path to diagnose`.', $filtered, 'workspace policy intro filter was not applied');
 	assert_contains('- **Local policy:** caller-owned workspace rules.', $filtered, 'workspace policy section filter was not applied');
 	assert_not_contains('- **Primary is read-only.** Never edit `<workspace>/<repo>` (no `@slug`).', $filtered, 'default policy section remained after filter override');
 	assert_contains('**Default routing**', $filtered, 'DMC routing changed after policy filter');