diff --git a/Cargo.lock b/Cargo.lock
index 6235e04..d737895 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1193,6 +1193,7 @@ dependencies = [
  "chrono",
  "futures-util",
  "maestro-protocol",
+ "maestro-tui",
  "reqwest",
  "serde",
  "serde_json",
diff --git a/crates/maestro-e2e/Cargo.toml b/crates/maestro-e2e/Cargo.toml
index 125d6f0..9edb70c 100644
--- a/crates/maestro-e2e/Cargo.toml
+++ b/crates/maestro-e2e/Cargo.toml
@@ -26,4 +26,5 @@ tracing.workspace = true
 uuid.workspace = true
 
 [dev-dependencies]
+maestro-tui.workspace = true
 tokio = { workspace = true, features = ["macros", "rt-multi-thread", "test-util"] }
diff --git a/crates/maestro-e2e/tests/tui_integration.rs b/crates/maestro-e2e/tests/tui_integration.rs
new file mode 100644
index 0000000..4f96c95
--- /dev/null
+++ b/crates/maestro-e2e/tests/tui_integration.rs
@@ -0,0 +1,166 @@
+//! TUI integration tests (NAP-282).
+//!
+//! Exercises `CatalogStore` and the per-session `SessionTask` against a real
+//! registry + daemon subprocess pair. We don't spin the full ratatui frontend
+//! here — those interactions are best tested with `TestBackend` unit tests in
+//! `crates/maestro-tui/src/*.rs`. This file fills the gap between those
+//! and the headless e2e suite by verifying that the TUI's wire layer plays
+//! nicely with a real `maestrod`.
+//!
+//! Requires `tmux` and `git` on `$PATH`.
+
+#![allow(clippy::result_large_err)]
+
+use std::path::PathBuf;
+use std::time::{Duration, Instant};
+
+use maestro_e2e::{Daemon, Registry};
+use maestro_protocol::CreateSessionRequest;
+use maestro_tui::catalog::CatalogStore;
+
+const TOKEN: &str = "tui-integration-token";
+
+async fn bring_up() -> (Registry, Daemon) {
+    let registry = Registry::spawn(TOKEN).await;
+    let daemon = Daemon::spawn("konishi", &registry.http_base(), TOKEN).await;
+    (registry, daemon)
+}
+
+fn http_base(daemon: &Daemon) -> String {
+    format!("http://{}", daemon.bind_addr)
+}
+
+fn ws_base(daemon: &Daemon) -> String {
+    format!("ws://{}", daemon.bind_addr)
+}
+
+async fn wait_until<F, Fut>(label: &str, deadline: Duration, mut check: F)
+where
+    F: FnMut() -> Fut,
+    Fut: std::future::Future<Output = bool>,
+{
+    let start = Instant::now();
+    loop {
+        if check().await {
+            return;
+        }
+        if start.elapsed() >= deadline {
+            panic!("timeout waiting for {label}");
+        }
+        tokio::time::sleep(Duration::from_millis(25)).await;
+    }
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn catalog_bootstrap_against_real_daemon() {
+    let (_registry, daemon) = bring_up().await;
+    let ws_url = format!("{}/api/events", ws_base(&daemon));
+
+    let store = CatalogStore::default();
+    let bg = store.clone();
+    tokio::spawn(async move { bg.run_events_loop(ws_url).await });
+
+    tokio::time::timeout(Duration::from_secs(3), store.wait_for_initial_snapshot())
+        .await
+        .expect("initial snapshot");
+
+    let snap = store.snapshot();
+    assert_eq!(snap.daemons.len(), 1, "self-daemon snapshot");
+    assert_eq!(snap.daemons[0].daemon_id, "konishi");
+    assert!(snap.sessions.is_empty());
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn post_session_propagates_through_events_ws() {
+    let (_registry, daemon) = bring_up().await;
+    let ws_url = format!("{}/api/events", ws_base(&daemon));
+    let http_base = http_base(&daemon);
+
+    let store = CatalogStore::default();
+    let bg = store.clone();
+    tokio::spawn(async move { bg.run_events_loop(ws_url).await });
+
+    tokio::time::timeout(Duration::from_secs(3), store.wait_for_initial_snapshot())
+        .await
+        .expect("initial snapshot");
+
+    let cwd = PathBuf::from(daemon.home());
+    let req = CreateSessionRequest {
+        daemon_id: "konishi".into(),
+        cwd,
+        command: "bash".into(),
+        env: Default::default(),
+        metadata: Default::default(),
+        worktree: None,
+    };
+    let res = reqwest::Client::new()
+        .post(format!("{http_base}/api/sessions"))
+        .json(&req)
+        .send()
+        .await
+        .expect("post sessions");
+    assert!(res.status().is_success(), "POST /api/sessions: {res:?}");
+
+    wait_until(
+        "session to surface in catalog",
+        Duration::from_secs(2),
+        || async { store.snapshot().sessions.len() == 1 },
+    )
+    .await;
+
+    let snap = store.snapshot();
+    assert_eq!(snap.sessions.len(), 1);
+    assert_eq!(snap.sessions[0].daemon_id, "konishi");
+    assert_eq!(snap.sessions[0].command, "bash");
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn delete_session_propagates_removal() {
+    let (_registry, daemon) = bring_up().await;
+    let ws_url = format!("{}/api/events", ws_base(&daemon));
+    let http_base = http_base(&daemon);
+
+    let store = CatalogStore::default();
+    let bg = store.clone();
+    tokio::spawn(async move { bg.run_events_loop(ws_url).await });
+
+    tokio::time::timeout(Duration::from_secs(3), store.wait_for_initial_snapshot())
+        .await
+        .expect("initial snapshot");
+
+    let cwd = PathBuf::from(daemon.home());
+    let req = CreateSessionRequest {
+        daemon_id: "konishi".into(),
+        cwd,
+        command: "bash".into(),
+        env: Default::default(),
+        metadata: Default::default(),
+        worktree: None,
+    };
+    let client = reqwest::Client::new();
+    let res = client
+        .post(format!("{http_base}/api/sessions"))
+        .json(&req)
+        .send()
+        .await
+        .unwrap();
+    assert!(res.status().is_success());
+
+    wait_until("creation", Duration::from_secs(2), || async {
+        store.snapshot().sessions.len() == 1
+    })
+    .await;
+
+    let sid = store.snapshot().sessions[0].id;
+    let res = client
+        .delete(format!("{http_base}/api/sessions/{sid}"))
+        .send()
+        .await
+        .unwrap();
+    assert!(res.status().is_success(), "DELETE /api/sessions: {res:?}");
+
+    wait_until("removal", Duration::from_secs(2), || async {
+        store.snapshot().sessions.is_empty()
+    })
+    .await;
+}