diff --git a/apps/mark/src-tauri/src/session_commands.rs b/apps/mark/src-tauri/src/session_commands.rs
index 351cb175..7e5789e9 100644
--- a/apps/mark/src-tauri/src/session_commands.rs
+++ b/apps/mark/src-tauri/src/session_commands.rs
@@ -180,9 +180,12 @@ pub fn start_session(
 /// The working directory is read from the session record (set when the
 /// session was first created), so the frontend doesn't need to pass it.
 #[tauri::command]
+#[allow(clippy::too_many_arguments)]
 pub fn resume_session(
     store: tauri::State<'_, Mutex<Option<Arc<Store>>>>,
     registry: tauri::State<'_, Arc<session_runner::SessionRegistry>>,
+    action_executor: tauri::State<'_, Arc<ActionExecutor>>,
+    action_registry: tauri::State<'_, Arc<ActionRegistry>>,
     app_handle: tauri::AppHandle,
     session_id: String,
     prompt: String,
@@ -201,6 +204,14 @@ pub fn resume_session(
     let agent_session_id = session.agent_id.clone();
     let working_dir = PathBuf::from(&session.working_dir);
 
+    // Check if this session is linked to a project note — if so, we need
+    // to start the MCP server so the agent has access to project tools.
+    let mcp_project_id = store
+        .get_project_note_by_session(&session_id)
+        .ok()
+        .flatten()
+        .map(|note| note.project_id);
+
     let transitioned = store
         .transition_to_running(&session_id)
         .map_err(|e| e.to_string())?;
@@ -215,7 +226,7 @@ pub fn resume_session(
             status: "running".to_string(),
             error_message: None,
             branch_id: None,
-            project_id: None,
+            project_id: mcp_project_id.clone(),
             session_type: None,
             is_auto_review: false,
         },
@@ -231,9 +242,17 @@ pub fn resume_session(
             provider,
             workspace_name: None,
             extra_env: vec![],
-            mcp_project_id: None,
-            action_executor: None,
-            action_registry: None,
+            mcp_project_id: mcp_project_id.clone(),
+            action_executor: if mcp_project_id.is_some() {
+                Some(Arc::clone(&action_executor))
+            } else {
+                None
+            },
+            action_registry: if mcp_project_id.is_some() {
+                Some(Arc::clone(&action_registry))
+            } else {
+                None
+            },
             remote_working_dir: None,
             image_ids: image_ids.unwrap_or_default(),
         },
diff --git a/apps/mark/src/lib/features/projects/ProjectSection.svelte b/apps/mark/src/lib/features/projects/ProjectSection.svelte
index 566f38af..ac157bb2 100644
--- a/apps/mark/src/lib/features/projects/ProjectSection.svelte
+++ b/apps/mark/src/lib/features/projects/ProjectSection.svelte
@@ -396,24 +396,42 @@
     loadProjectNotes();
 
     let unlistenSession: (() => void) | undefined;
-    listen<{ sessionId: string; status: string }>('session-status-changed', (event) => {
-      const { sessionId, status } = event.payload;
-      const isTracked = activeSessionIds.has(sessionId);
-      // Also reload if this session belongs to a known project note (handles
-      // sessions that were already running when the component mounted).
-      const isKnownNoteSession = projectNotes.some((n) => n.sessionId === sessionId);
-      if (isTracked || isKnownNoteSession) {
-        if (status === 'completed' || status === 'error' || status === 'cancelled') {
-          if (isTracked) {
-            const next = new Set(activeSessionIds);
-            next.delete(sessionId);
-            activeSessionIds = next;
+    listen<{ sessionId: string; status: string; projectId?: string }>(
+      'session-status-changed',
+      (event) => {
+        const { sessionId, status, projectId } = event.payload;
+        const isTracked = activeSessionIds.has(sessionId);
+        // Also reload if this session belongs to a known project note (handles
+        // sessions that were already running when the component mounted).
+        const isKnownNoteSession = projectNotes.some((n) => n.sessionId === sessionId);
+
+        // Handle resumed sessions: when a project note session is resumed,
+        // the backend emits a "running" event with the projectId. Re-add it
+        // to active tracking so the row spinner and sidebar spinner appear.
+        if (
+          status === 'running' &&
+          !isTracked &&
+          isKnownNoteSession &&
+          (projectId === project.id || !projectId)
+        ) {
+          activeSessionIds = new Set([...activeSessionIds, sessionId]);
+          sessionRegistry.register(sessionId, project.id, 'note');
+          projectStateStore.addRunningSession(project.id, sessionId);
+        }
+
+        if (isTracked || isKnownNoteSession) {
+          if (status === 'completed' || status === 'error' || status === 'cancelled') {
+            if (isTracked) {
+              const next = new Set(activeSessionIds);
+              next.delete(sessionId);
+              activeSessionIds = next;
+            }
+            // Refresh notes after session completes
+            loadProjectNotes();
           }
-          // Refresh notes after session completes
-          loadProjectNotes();
         }
       }
-    }).then((unlisten) => {
+    ).then((unlisten) => {
       unlistenSession = unlisten;
     });
 
diff --git a/crates/acp-client/src/driver.rs b/crates/acp-client/src/driver.rs
index 17aac637..d45ca20d 100644
--- a/crates/acp-client/src/driver.rs
+++ b/crates/acp-client/src/driver.rs
@@ -178,7 +178,7 @@ impl AcpDriver {
         self
     }
 
-    /// Set MCP servers to inject into the session via `NewSessionRequest`.
+    /// Set MCP servers to inject into the session via `NewSessionRequest` or `LoadSessionRequest`.
     pub fn with_mcp_servers(mut self, servers: Vec<McpServer>) -> Self {
         self.mcp_servers = servers;
         self
@@ -758,10 +758,10 @@ async fn setup_acp_session(
             );
 
             connection
-                .load_session(LoadSessionRequest::new(
-                    existing_id.to_string(),
-                    working_dir.to_path_buf(),
-                ))
+                .load_session(
+                    LoadSessionRequest::new(existing_id.to_string(), working_dir.to_path_buf())
+                        .mcp_servers(mcp_servers.to_vec()),
+                )
                 .await
                 .map_err(|e| format!("Failed to load ACP session: {e:?}"))?;