diff --git a/src/api_hook_client.py b/src/api_hook_client.py
index f70b86b..40d2497 100644
--- a/src/api_hook_client.py
+++ b/src/api_hook_client.py
@@ -171,3 +171,22 @@ class ApiHookClient:
  def reset_session(self) -> None:
   """Resets the current session via button click."""
   self.click("btn_reset")
+
+ def trigger_patch(self, patch_text: str, file_paths: list[str]) -> dict[str, Any]:
+  """Triggers the patch modal to show in the GUI."""
+  return self._make_request('POST', '/api/patch/trigger', data={
+   "patch_text": patch_text,
+   "file_paths": file_paths
+  }) or {}
+
+ def apply_patch(self) -> dict[str, Any]:
+  """Applies the pending patch."""
+  return self._make_request('POST', '/api/patch/apply') or {}
+
+ def reject_patch(self) -> dict[str, Any]:
+  """Rejects the pending patch."""
+  return self._make_request('POST', '/api/patch/reject') or {}
+
+ def get_patch_status(self) -> dict[str, Any]:
+  """Gets the current patch modal status."""
+  return self._make_request('GET', '/api/patch/status') or {}
diff --git a/src/api_hooks.py b/src/api_hooks.py
index 60212f4..df35c85 100644
--- a/src/api_hooks.py
+++ b/src/api_hooks.py
@@ -288,6 +288,97 @@ class HookHandler(BaseHTTPRequestHandler):
     else:
      self.send_response(504)
      self.end_headers()
+   elif self.path == "/api/patch/trigger":
+    patch_text = data.get("patch_text", "")
+    file_paths = data.get("file_paths", [])
+    event = threading.Event()
+    result = {"status": "queued"}
+    def trigger_patch():
+     try:
+      app._pending_patch_text = patch_text
+      app._pending_patch_files = file_paths
+      app._show_patch_modal = True
+      result["status"] = "ok"
+     except Exception as e:
+      result["status"] = "error"
+      result["error"] = str(e)
+     finally:
+      event.set()
+    lock = _get_app_attr(app, "_pending_gui_tasks_lock")
+    tasks = _get_app_attr(app, "_pending_gui_tasks")
+    if lock and tasks is not None:
+     with lock: tasks.append({"action": "custom_callback", "callback": trigger_patch})
+    if event.wait(timeout=10):
+     self.send_response(200)
+     self.send_header("Content-Type", "application/json")
+     self.end_headers()
+     self.wfile.write(json.dumps(result).encode("utf-8"))
+    else:
+     self.send_response(504)
+     self.end_headers()
+   elif self.path == "/api/patch/apply":
+    event = threading.Event()
+    result = {"status": "done"}
+    def apply_patch():
+     try:
+      if hasattr(app, "_apply_pending_patch"):
+       app._apply_pending_patch()
+      else:
+       result["status"] = "no_method"
+     except Exception as e:
+      result["status"] = "error"
+      result["error"] = str(e)
+     finally:
+      event.set()
+    lock = _get_app_attr(app, "_pending_gui_tasks_lock")
+    tasks = _get_app_attr(app, "_pending_gui_tasks")
+    if lock and tasks is not None:
+     with lock: tasks.append({"action": "custom_callback", "callback": apply_patch})
+    if event.wait(timeout=10):
+     self.send_response(200)
+     self.send_header("Content-Type", "application/json")
+     self.end_headers()
+     self.wfile.write(json.dumps(result).encode("utf-8"))
+    else:
+     self.send_response(504)
+     self.end_headers()
+   elif self.path == "/api/patch/reject":
+    event = threading.Event()
+    result = {"status": "done"}
+    def reject_patch():
+     try:
+      app._show_patch_modal = False
+      app._pending_patch_text = None
+      app._pending_patch_files = []
+     except Exception as e:
+      result["status"] = "error"
+      result["error"] = str(e)
+     finally:
+      event.set()
+    lock = _get_app_attr(app, "_pending_gui_tasks_lock")
+    tasks = _get_app_attr(app, "_pending_gui_tasks")
+    if lock and tasks is not None:
+     with lock: tasks.append({"action": "custom_callback", "callback": reject_patch})
+    if event.wait(timeout=10):
+     self.send_response(200)
+     self.send_header("Content-Type", "application/json")
+     self.end_headers()
+     self.wfile.write(json.dumps(result).encode("utf-8"))
+    else:
+     self.send_response(504)
+     self.end_headers()
+   elif self.path == "/api/patch/status":
+    show_modal = _get_app_attr(app, "_show_patch_modal", False)
+    patch_text = _get_app_attr(app, "_pending_patch_text", None)
+    patch_files = _get_app_attr(app, "_pending_patch_files", [])
+    self.send_response(200)
+    self.send_header("Content-Type", "application/json")
+    self.end_headers()
+    self.wfile.write(json.dumps({
+     "show_modal": show_modal,
+     "patch_text": patch_text,
+     "file_paths": patch_files
+    }).encode("utf-8"))
    elif self.path == "/api/ask":
     request_id = str(uuid.uuid4())
     event = threading.Event()
diff --git a/tests/test_patch_modal_gui.py b/tests/test_patch_modal_gui.py
new file mode 100644
index 0000000..4b5ae84
--- /dev/null
+++ b/tests/test_patch_modal_gui.py
@@ -0,0 +1,84 @@
+import pytest
+import time
+import sys
+import os
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "src")))
+
+from src import api_hook_client
+
+@pytest.mark.integration
+@pytest.mark.timeout(120)
+def test_patch_modal_appears_on_trigger(live_gui) -> None:
+ """
+    Test that triggering a patch shows the modal in the GUI.
+    Uses live_gui fixture to start the GUI with test hooks enabled.
+    """
+ proc, _ = live_gui
+ client = api_hook_client.ApiHookClient()
+ 
+ if not client.wait_for_server(timeout=15):
+  pytest.skip("GUI server not available")
+ 
+ sample_patch = """--- a/test_file.py
++++ b/test_file.py
+@@ -1,3 +1,4 @@
+ def hello():
+-    print("old")
++    print("new")
++    print("extra")
+     return True"""
+ 
+ result = client.trigger_patch(sample_patch, ["test_file.py"])
+ assert result.get("status") == "ok", f"Failed to trigger patch: {result}"
+ 
+ time.sleep(2)
+ 
+ status = client.get_patch_status()
+ assert status.get("show_modal") == True, "Patch modal should be visible"
+ assert status.get("patch_text") == sample_patch
+ assert "test_file.py" in status.get("file_paths", [])
+ 
+ result = client.reject_patch()
+ assert result.get("status") == "done"
+ 
+ time.sleep(1)
+ 
+ status = client.get_patch_status()
+ assert status.get("show_modal") == False, "Patch modal should be closed after reject"
+
+@pytest.mark.integration
+@pytest.mark.timeout(120)
+def test_patch_apply_modal_workflow(live_gui) -> None:
+ """
+    Test the full patch apply workflow: trigger -> apply -> verify modal closes.
+    """
+ proc, _ = live_gui
+ client = api_hook_client.ApiHookClient()
+ 
+ if not client.wait_for_server(timeout=15):
+  pytest.skip("GUI server not available")
+ 
+ sample_patch = """--- a/example.py
++++ b/example.py
+@@ -5,3 +5,4 @@
+ def calculate():
+     x = 1
+-    return x
++    return x + 1
++    # added line"""
+ 
+ result = client.trigger_patch(sample_patch, ["example.py"])
+ assert result.get("status") == "ok"
+ 
+ time.sleep(2)
+ 
+ status = client.get_patch_status()
+ assert status.get("show_modal") == True
+ 
+ result = client.apply_patch()
+ time.sleep(1)
+ 
+ status = client.get_patch_status()
+ assert status.get("show_modal") == False, "Patch modal should close after apply"
\ No newline at end of file