diff --git a/projects/plugins/jetpack/changelog/fix-skip-premature-am-enable-block-notes b/projects/plugins/jetpack/changelog/fix-skip-premature-am-enable-block-notes
new file mode 100644
index 000000000000..3b46ef84d69a
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/fix-skip-premature-am-enable-block-notes
@@ -0,0 +1,4 @@
+Significance: patch
+Type: bugfix
+
+Block Notes: Stop force-enabling Agents Manager site-wide via the unified experience filter.
diff --git a/projects/plugins/jetpack/extensions/plugins/block-notes/block-notes.php b/projects/plugins/jetpack/extensions/plugins/block-notes/block-notes.php
index f0951113ae56..a8261a2a8019 100644
--- a/projects/plugins/jetpack/extensions/plugins/block-notes/block-notes.php
+++ b/projects/plugins/jetpack/extensions/plugins/block-notes/block-notes.php
@@ -288,25 +288,6 @@ function enqueue_block_notes() {
 }
 add_action( 'enqueue_block_editor_assets', __NAMESPACE__ . '\enqueue_block_notes' );
 
-/**
- * Enable the agents manager unified experience on self-hosted sites
- * when Block Notes is enabled.
- *
- * This ensures the agents manager loads and can host the headless agent
- * even when the unified chat experience is not otherwise enabled.
- *
- * @param bool $use_unified_experience Current value of the filter.
- * @return bool
- */
-function enable_agents_manager_for_block_notes( $use_unified_experience ) {
-	if ( $use_unified_experience ) {
-		return true;
-	}
-
-	return is_block_notes_enabled();
-}
-add_filter( 'agents_manager_use_unified_experience', __NAMESPACE__ . '\enable_agents_manager_for_block_notes' );
-
 /**
  * Register the Block Notes headless agent provider with the agents manager.
  *
diff --git a/projects/plugins/jetpack/tests/php/extensions/plugins/block-notes/Block_Notes_Test.php b/projects/plugins/jetpack/tests/php/extensions/plugins/block-notes/Block_Notes_Test.php
index a58bb123b577..89fa968ca854 100644
--- a/projects/plugins/jetpack/tests/php/extensions/plugins/block-notes/Block_Notes_Test.php
+++ b/projects/plugins/jetpack/tests/php/extensions/plugins/block-notes/Block_Notes_Test.php
@@ -51,7 +51,6 @@ public function set_up() {
 	 */
 	public function tear_down() {
 		delete_transient( BlockNotes\ASSET_TRANSIENT );
-		remove_all_filters( 'agents_manager_use_unified_experience' );
 		remove_all_filters( 'agents_manager_agent_providers' );
 		remove_all_filters( 'pre_http_request' );
 		remove_all_filters( 'jetpack_ai_enabled' );
@@ -959,52 +958,6 @@ public function test_get_asset_data_from_remote_returns_false_on_non_json_conten
 		$this->assertFalse( $result );
 	}
 
-	// -------------------------------------------------------------------------
-	// enable_agents_manager_for_block_notes() tests
-	// -------------------------------------------------------------------------
-
-	/**
-	 * Test that enable_agents_manager_for_block_notes returns true
-	 * when AI features are available.
-	 */
-	public function test_enable_agents_manager_returns_true_when_block_notes_enabled() {
-		$result = BlockNotes\enable_agents_manager_for_block_notes( false );
-
-		$this->assertTrue( $result );
-	}
-
-	/**
-	 * Test that enable_agents_manager_for_block_notes returns false
-	 * when AI features are disabled and input is false.
-	 */
-	public function test_enable_agents_manager_returns_false_when_block_notes_disabled() {
-		$this->disable_ai_features();
-
-		$result = BlockNotes\enable_agents_manager_for_block_notes( false );
-
-		$this->assertFalse( $result );
-	}
-
-	/**
-	 * Test that enable_agents_manager_for_block_notes does not override
-	 * when agents_manager_use_unified_experience is already true.
-	 */
-	public function test_enable_agents_manager_preserves_existing_true() {
-		$result = BlockNotes\enable_agents_manager_for_block_notes( true );
-
-		$this->assertTrue( $result );
-	}
-
-	/**
-	 * Test that enable_agents_manager_for_block_notes preserves true
-	 * when input is already true and block notes is also enabled.
-	 */
-	public function test_enable_agents_manager_no_double_registration() {
-		$result = BlockNotes\enable_agents_manager_for_block_notes( true );
-
-		$this->assertTrue( $result );
-	}
-
 	// -------------------------------------------------------------------------
 	// register_headless_agent_provider() tests
 	// -------------------------------------------------------------------------