diff --git a/app/Plan/JsonPlanRepository.php b/app/Plan/JsonPlanRepository.php
new file mode 100644
index 0000000..8a88838
--- /dev/null
+++ b/app/Plan/JsonPlanRepository.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace App\Plan;
+
+use App\User\User;
+use App\User\UserRepository;
+use App\ValueObjects\EmailAddress;
+
+class JsonPlanRepository implements PlanRepository
+{
+    private string $filePath;
+
+    public function __construct(
+        private UserRepository $userRepository,
+    ) {
+        $this->filePath = __DIR__ . '/../../data/plans.json';
+    }
+
+    public function create(CreatePlanDto $dto): Plan
+    {
+        $plans = $this->readPlans();
+        $id = $this->getNextId($plans);
+
+        $plans[] = [
+            'id' => $id,
+            'name' => $dto->name,
+            'userId' => $dto->user->getId(),
+        ];
+        $this->writePlans($plans);
+
+        return new Plan(
+            id: $id,
+            name: $dto->name,
+            user: $dto->user,
+        );
+    }
+
+    public function find(int $id): ?Plan
+    {
+        $plans = $this->readPlans();
+
+        foreach ($plans as $data) {
+            if ($data['id'] === $id) {
+                $user = $this->userRepository->find($data['userId']);
+                if ($user === null) {
+                    return null;
+                }
+                return new Plan(
+                    id: $data['id'],
+                    name: $data['name'],
+                    user: $user,
+                );
+            }
+        }
+
+        return null;
+    }
+
+    private function readPlans(): array
+    {
+        if (!file_exists($this->filePath)) {
+            return [];
+        }
+
+        $content = file_get_contents($this->filePath);
+
+        return json_decode($content, true) ?? [];
+    }
+
+    private function writePlans(array $plans): void
+    {
+        file_put_contents(
+            $this->filePath,
+            json_encode($plans, JSON_PRETTY_PRINT)
+        );
+    }
+
+    private function getNextId(array $plans): int
+    {
+        if (empty($plans)) {
+            return 0;
+        }
+
+        $maxId = -1;
+        foreach ($plans as $plan) {
+            if ($plan['id'] > $maxId) {
+                $maxId = $plan['id'];
+            }
+        }
+
+        return $maxId + 1;
+    }
+}
diff --git a/app/Plan/PlanController.php b/app/Plan/PlanController.php
new file mode 100644
index 0000000..cb88de8
--- /dev/null
+++ b/app/Plan/PlanController.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Plan;
+
+use App\Exceptions\BadRequestException;
+use App\Plan\UseCases\CreatePlan;
+use App\Plan\UseCases\CreatePlanRequest;
+use DomainException;
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+class PlanController
+{
+    public function createPlan(
+        Request $request,
+        Response $response,
+        CreatePlan $createPlanUseCase,
+    ): Response {
+        $data = json_decode((string) $request->getBody(), true) ?? [];
+
+        $userId = isset($data['userId']) ? (int) $data['userId'] : null;
+        $textId = isset($data['textId']) ? (int) $data['textId'] : null;
+        $name = $data['name'] ?? null;
+        $dateStart = $data['dateStart'] ?? null;
+        $dateEnd = $data['dateEnd'] ?? null;
+
+        try {
+            $plan = $createPlanUseCase->execute(new CreatePlanRequest(
+                userId: $userId,
+                textId: $textId,
+                name: $name,
+                dateStart: $dateStart,
+                dateEnd: $dateEnd,
+            ));
+        } catch (BadRequestException $exception) {
+            $response->getBody()->write(
+                json_encode(['error' => $exception->getMessage()])
+            );
+            return $response->withStatus(400)
+                ->withHeader('Content-Type', 'application/json');
+        } catch (DomainException $exception) {
+            $response->getBody()->write(
+                json_encode(['error' => $exception->getMessage()])
+            );
+            return $response->withStatus(404)
+                ->withHeader('Content-Type', 'application/json');
+        }
+
+        $response->getBody()->write(json_encode([
+            'id' => $plan->getId(),
+            'name' => $plan->getName(),
+        ]));
+        return $response->withStatus(201)
+            ->withHeader('Content-Type', 'application/json');
+    }
+}
diff --git a/app/ScheduledNode/JsonScheduledNodeRepository.php b/app/ScheduledNode/JsonScheduledNodeRepository.php
new file mode 100644
index 0000000..bee31ea
--- /dev/null
+++ b/app/ScheduledNode/JsonScheduledNodeRepository.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\ScheduledNode;
+
+class JsonScheduledNodeRepository implements ScheduledNodeRepository
+{
+    private string $filePath;
+
+    public function __construct()
+    {
+        $this->filePath = __DIR__ . '/../../data/scheduledNodes.json';
+    }
+
+    public function create(CreateScheduledNodeDto $dto): ScheduledNode
+    {
+        $scheduledNodes = $this->readScheduledNodes();
+        $id = $this->getNextId($scheduledNodes);
+
+        $scheduledNodes[] = [
+            'id' => $id,
+            'date' => $dto->date->format('Y-m-d'),
+            'planId' => $dto->plan->getId(),
+        ];
+        $this->writeScheduledNodes($scheduledNodes);
+
+        return new ScheduledNode(
+            id: $id,
+            date: $dto->date,
+            plan: $dto->plan,
+        );
+    }
+
+    private function readScheduledNodes(): array
+    {
+        if (!file_exists($this->filePath)) {
+            return [];
+        }
+
+        $content = file_get_contents($this->filePath);
+
+        return json_decode($content, true) ?? [];
+    }
+
+    private function writeScheduledNodes(array $scheduledNodes): void
+    {
+        file_put_contents(
+            $this->filePath,
+            json_encode($scheduledNodes, JSON_PRETTY_PRINT)
+        );
+    }
+
+    private function getNextId(array $scheduledNodes): int
+    {
+        if (empty($scheduledNodes)) {
+            return 0;
+        }
+
+        $maxId = -1;
+        foreach ($scheduledNodes as $scheduledNode) {
+            if ($scheduledNode['id'] > $maxId) {
+                $maxId = $scheduledNode['id'];
+            }
+        }
+
+        return $maxId + 1;
+    }
+}
diff --git a/app/User/JsonUserRepository.php b/app/User/JsonUserRepository.php
new file mode 100644
index 0000000..bde8c62
--- /dev/null
+++ b/app/User/JsonUserRepository.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace App\User;
+
+use App\User\UseCases\CreateUserDto;
+use App\ValueObjects\EmailAddress;
+
+class JsonUserRepository implements UserRepository
+{
+    private string $filePath;
+
+    public function __construct()
+    {
+        $this->filePath = __DIR__ . '/../../data/users.json';
+    }
+
+    public function create(CreateUserDto $dto): User
+    {
+        $users = $this->readUsers();
+        $id = $this->getNextId($users);
+
+        $users[] = [
+            'id' => $id,
+            'email' => (string) $dto->email,
+        ];
+        $this->writeUsers($users);
+
+        return new User(
+            id: $id,
+            email: $dto->email,
+        );
+    }
+
+    public function find(int $id): ?User
+    {
+        $users = $this->readUsers();
+
+        foreach ($users as $data) {
+            if ($data['id'] === $id) {
+                return new User(
+                    id: $data['id'],
+                    email: new EmailAddress($data['email']),
+                );
+            }
+        }
+
+        return null;
+    }
+
+    private function readUsers(): array
+    {
+        if (!file_exists($this->filePath)) {
+            return [];
+        }
+
+        $content = file_get_contents($this->filePath);
+
+        return json_decode($content, true) ?? [];
+    }
+
+    private function writeUsers(array $users): void
+    {
+        file_put_contents(
+            $this->filePath,
+            json_encode($users, JSON_PRETTY_PRINT)
+        );
+    }
+
+    private function getNextId(array $users): int
+    {
+        if (empty($users)) {
+            return 0;
+        }
+
+        $maxId = -1;
+        foreach ($users as $user) {
+            if ($user['id'] > $maxId) {
+                $maxId = $user['id'];
+            }
+        }
+
+        return $maxId + 1;
+    }
+}
diff --git a/bootstrap/app.php b/bootstrap/app.php
index db0dd63..1ceeb8e 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -6,6 +6,7 @@ use DI\Bridge\Slim\Bridge;
 use App\View\ViewController;
 use App\Text\TextController;
 use App\Node\NodeController;
+use App\Plan\PlanController;
 
 $container = require __DIR__ . '/container.php';
 $app = Bridge::create($container);
@@ -26,4 +27,6 @@ $app->get('/api/nodes/{textId}', [NodeController::class, 'getNodesOfText']);
 $app->post('/api/nodes/bulk', [NodeController::class, 'bulkCreateNodes']);
 $app->post('/api/nodes', [NodeController::class, 'createNode']);
 
+$app->post('/api/plans', [PlanController::class, 'createPlan']);
+
 return $app;
diff --git a/bootstrap/container.php b/bootstrap/container.php
index efcfde5..fb80996 100644
--- a/bootstrap/container.php
+++ b/bootstrap/container.php
@@ -6,10 +6,20 @@ use App\Text\TextRepository;
 use App\Text\JsonTextRepository;
 use App\Node\NodeRepository;
 use App\Node\JsonNodeRepository;
+use App\Plan\PlanRepository;
+use App\Plan\JsonPlanRepository;
+use App\User\UserRepository;
+use App\User\JsonUserRepository;
+use App\ScheduledNode\ScheduledNodeRepository;
+use App\ScheduledNode\JsonScheduledNodeRepository;
 
 $container = new Container([
     TextRepository::class => DI\autowire(JsonTextRepository::class),
     NodeRepository::class => DI\autowire(JsonNodeRepository::class),
+    PlanRepository::class => DI\autowire(JsonPlanRepository::class),
+    UserRepository::class => DI\autowire(JsonUserRepository::class),
+    ScheduledNodeRepository::class =>
+        DI\autowire(JsonScheduledNodeRepository::class),
 ]);
 
 return $container;
diff --git a/cypress/e2e/homeCreatePlan.cy.js b/cypress/e2e/homeCreatePlan.cy.js
new file mode 100644
index 0000000..3c9ee87
--- /dev/null
+++ b/cypress/e2e/homeCreatePlan.cy.js
@@ -0,0 +1,98 @@
+describe('Create plan modal on the home page', () => {
+    beforeEach(() => {
+        cy.exec('npm run db:seed')
+        cy.intercept('GET', '/api/texts').as('getTexts')
+        cy.visit('/home')
+        cy.wait('@getTexts')
+    })
+
+    afterEach(() => {
+        cy.exec('npm run db:wipe')
+    })
+
+    it('shows a "Create plan" button on each text', () => {
+        cy.get('#texts-list li').each((textItem) => {
+            cy.wrap(textItem).find('button.create-plan').should('exist')
+        })
+    })
+
+    it('hides the create plan modal by default', () => {
+        cy.get('#create-plan-modal').should('not.be.visible')
+    })
+
+    it('shows the modal when clicking "Create plan"', () => {
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal').should('be.visible')
+    })
+
+    it('modal contains name, date start, date end, save, cancel', () => {
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal input.plan-name').should('be.visible')
+        cy.get('#create-plan-modal input.plan-date-start')
+            .should('be.visible')
+        cy.get('#create-plan-modal input.plan-date-end')
+            .should('be.visible')
+        cy.get('#create-plan-modal button.save-plan').should('be.visible')
+        cy.get('#create-plan-modal button.cancel-plan').should('be.visible')
+    })
+
+    it('hides the modal when clicking "Cancel"', () => {
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal').should('be.visible')
+        cy.get('#create-plan-modal button.cancel-plan').click()
+        cy.get('#create-plan-modal').should('not.be.visible')
+    })
+
+    it('submits plan details to /api/plans', () => {
+        cy.intercept('POST', '/api/plans').as('createPlan')
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal input.plan-name')
+            .type('My reading plan')
+        cy.get('#create-plan-modal input.plan-date-start')
+            .type('2025-01-01')
+        cy.get('#create-plan-modal input.plan-date-end')
+            .type('2025-01-31')
+        cy.get('#create-plan-modal button.save-plan').click()
+        cy.wait('@createPlan').then((createPlanRequest) => {
+            expect(createPlanRequest.response.statusCode).to.eq(201)
+            expect(createPlanRequest.request.body).to.deep.equal({
+                userId: 0,
+                textId: 0,
+                name: 'My reading plan',
+                dateStart: '2025-01-01',
+                dateEnd: '2025-01-31',
+            })
+        })
+    })
+
+    it('closes the modal after successful submit', () => {
+        cy.intercept('POST', '/api/plans').as('createPlan')
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal input.plan-name')
+            .type('Another plan')
+        cy.get('#create-plan-modal input.plan-date-start')
+            .type('2025-02-01')
+        cy.get('#create-plan-modal input.plan-date-end')
+            .type('2025-02-28')
+        cy.get('#create-plan-modal button.save-plan').click()
+        cy.wait('@createPlan')
+        cy.get('#create-plan-modal').should('not.be.visible')
+    })
+
+    it('does not submit if name is empty', () => {
+        cy.intercept('POST', '/api/plans').as('createPlan')
+        cy.get('#texts-list li').first()
+            .find('button.create-plan').click()
+        cy.get('#create-plan-modal input.plan-date-start')
+            .type('2025-01-01')
+        cy.get('#create-plan-modal input.plan-date-end')
+            .type('2025-01-31')
+        cy.get('#create-plan-modal button.save-plan').click()
+        cy.get('@createPlan.all').should('have.length', 0)
+    })
+})
diff --git a/data/seedDb.php b/data/seedDb.php
index 3206372..922ca90 100644
--- a/data/seedDb.php
+++ b/data/seedDb.php
@@ -28,9 +28,22 @@ $nodes = [
     ],
 ];
 
+$users = [
+    [
+        'id' => 0,
+        'email' => 'user@example.com',
+    ],
+];
+
+$plans = [];
+$scheduledNodes = [];
+
 $fileDataMap = [
     'texts.json' => $texts,
     'nodes.json' => $nodes,
+    'users.json' => $users,
+    'plans.json' => $plans,
+    'scheduledNodes.json' => $scheduledNodes,
 ];
 
 foreach ($fileDataMap as $file => $data) {
diff --git a/data/wipeDb.php b/data/wipeDb.php
index 4183d5b..658bb2f 100644
--- a/data/wipeDb.php
+++ b/data/wipeDb.php
@@ -3,6 +3,9 @@
 $files = [
     'texts.json',
     'nodes.json',
+    'users.json',
+    'plans.json',
+    'scheduledNodes.json',
 ];
 
 foreach ($files as $file) {
diff --git a/public/js/home.js b/public/js/home.js
index 3e7cde8..b46a051 100644
--- a/public/js/home.js
+++ b/public/js/home.js
@@ -1,13 +1,85 @@
 document.addEventListener('DOMContentLoaded', () => {
     const textsList = document.getElementById('texts-list');
+    const createPlanModal = document.getElementById('create-plan-modal');
 
     async function loadTexts() {
         const response = await fetch('/api/texts');
         const texts = await response.json();
         textsList.innerHTML = texts
-            .map(text => '<li>' + text.name + '</li>')
+            .map(text =>
+                '<li>' + text.name +
+                ' <button class="create-plan" data-text-id="' +
+                text.id + '">Create plan</button></li>'
+            )
             .join('');
     }
 
+    const cancelPlanButton = createPlanModal.querySelector(
+        'button.cancel-plan'
+    );
+    const savePlanButton = createPlanModal.querySelector(
+        'button.save-plan'
+    );
+    const planNameInput = createPlanModal.querySelector('input.plan-name');
+    const planDateStartInput = createPlanModal.querySelector(
+        'input.plan-date-start'
+    );
+    const planDateEndInput = createPlanModal.querySelector(
+        'input.plan-date-end'
+    );
+
+    function openCreatePlanModal(textId) {
+        createPlanModal.dataset.textId = textId;
+        createPlanModal.hidden = false;
+    }
+
+    function closeCreatePlanModal() {
+        createPlanModal.hidden = true;
+        planNameInput.value = '';
+        planDateStartInput.value = '';
+        planDateEndInput.value = '';
+    }
+
+    textsList.addEventListener('click', (clickEvent) => {
+        const createPlanButton = clickEvent.target.closest(
+            'button.create-plan'
+        );
+        if (createPlanButton === null) {
+            return;
+        }
+        openCreatePlanModal(createPlanButton.dataset.textId);
+    });
+
+    cancelPlanButton.addEventListener('click', () => {
+        closeCreatePlanModal();
+    });
+
+    savePlanButton.addEventListener('click', async () => {
+        const planName = planNameInput.value;
+        const dateStart = planDateStartInput.value;
+        const dateEnd = planDateEndInput.value;
+        const textId = Number(createPlanModal.dataset.textId);
+
+        if (planName === '' || dateStart === '' || dateEnd === '') {
+            return;
+        }
+
+        const response = await fetch('/api/plans', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+                userId: 0,
+                textId: textId,
+                name: planName,
+                dateStart: dateStart,
+                dateEnd: dateEnd,
+            }),
+        });
+
+        if (response.ok) {
+            closeCreatePlanModal();
+        }
+    });
+
     loadTexts();
 });
diff --git a/tests/e2e/Controllers/PlanControllerTest.php b/tests/e2e/Controllers/PlanControllerTest.php
new file mode 100644
index 0000000..ee51012
--- /dev/null
+++ b/tests/e2e/Controllers/PlanControllerTest.php
@@ -0,0 +1,280 @@
+<?php
+
+namespace Tests\e2e\Controllers;
+
+use App\Node\CreateNodeDto;
+use App\Plan\PlanController;
+use App\Plan\UseCases\CreatePlan;
+use App\ScheduledNode\UseCases\CreateScheduledNode;
+use App\Text\CreateTextDto;
+use App\User\UseCases\CreateUserDto;
+use App\ValueObjects\EmailAddress;
+use PHPUnit\Framework\TestCase;
+use Psr\Http\Message\ServerRequestInterface;
+use Slim\Psr7\Factory\ServerRequestFactory;
+use Slim\Psr7\Factory\StreamFactory;
+use Slim\Psr7\Response;
+use Tests\Fakes\FakeNodeRepository;
+use Tests\Fakes\FakePlanRepository;
+use Tests\Fakes\FakeScheduledNodeRepository;
+use Tests\Fakes\FakeTextRepository;
+use Tests\Fakes\FakeUserRepository;
+
+class PlanControllerTest extends TestCase
+{
+    private FakePlanRepository $planRepo;
+    private FakeUserRepository $userRepo;
+    private FakeTextRepository $textRepo;
+    private FakeNodeRepository $nodeRepo;
+    private FakeScheduledNodeRepository $scheduledNodeRepo;
+    private CreatePlan $createPlan;
+    private PlanController $controller;
+
+    public function setUp(): void
+    {
+        $this->planRepo = new FakePlanRepository();
+        $this->userRepo = new FakeUserRepository();
+        $this->textRepo = new FakeTextRepository();
+        $this->nodeRepo = new FakeNodeRepository();
+        $this->scheduledNodeRepo = new FakeScheduledNodeRepository();
+
+        $this->userRepo->create(new CreateUserDto(
+            email: new EmailAddress('test@test.com'),
+        ));
+        $text = $this->textRepo->create(new CreateTextDto('testname'));
+        $this->nodeRepo->create(new CreateNodeDto(
+            text: $text,
+            title: 'Root Node',
+            parentNode: null,
+        ));
+
+        $createScheduledNode = new CreateScheduledNode(
+            scheduledNodeRepo: $this->scheduledNodeRepo,
+            planRepo: $this->planRepo,
+        );
+        $this->createPlan = new CreatePlan(
+            $this->planRepo,
+            $this->userRepo,
+            $this->textRepo,
+            $this->nodeRepo,
+            $createScheduledNode,
+        );
+        $this->controller = new PlanController();
+    }
+
+    private function makeRequest(array $data): ServerRequestInterface
+    {
+        $body = new StreamFactory()->createStream(json_encode($data));
+        return new ServerRequestFactory()
+            ->createServerRequest('POST', 'http://localhost/api/plans')
+            ->withHeader('Content-Type', 'application/json')
+            ->withBody($body);
+    }
+
+    public function test_create_plan_returns_201_with_id_and_name(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(201, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('id', $body);
+        $this->assertEquals('My Plan', $body['name']);
+    }
+
+    public function test_create_plan_returns_400_when_user_id_missing(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_400_when_text_id_missing(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_400_when_name_missing(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_400_when_date_start_missing(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_400_when_date_end_missing(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_400_when_date_end_before_start(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-02',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(400, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_404_when_user_not_found(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 99,
+                'textId' => 0,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(404, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_returns_404_when_text_not_found(): void
+    {
+        $response = $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 99,
+                'name' => 'My Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(404, $response->getStatusCode());
+        $body = json_decode($response->getBody(), true);
+        $this->assertArrayHasKey('error', $body);
+    }
+
+    public function test_create_plan_persists_plan_in_repository(): void
+    {
+        $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'Persistent Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $storedPlan = $this->planRepo->find(0);
+        $this->assertNotNull($storedPlan);
+        $this->assertEquals('Persistent Plan', $storedPlan->getName());
+    }
+
+    public function test_create_plan_schedules_nodes(): void
+    {
+        $this->controller->createPlan(
+            $this->makeRequest([
+                'userId' => 0,
+                'textId' => 0,
+                'name' => 'Scheduling Plan',
+                'dateStart' => '2025-01-01',
+                'dateEnd' => '2025-01-01',
+            ]),
+            new Response(),
+            $this->createPlan,
+        );
+
+        $this->assertEquals(
+            1,
+            $this->scheduledNodeRepo->getNumberOfTimesCreateCalled()
+        );
+        $this->assertNotNull($this->scheduledNodeRepo->find(0));
+    }
+}
diff --git a/views/templates/home.php b/views/templates/home.php
index a386efe..ddbc361 100644
--- a/views/templates/home.php
+++ b/views/templates/home.php
@@ -7,6 +7,20 @@
     <h1>Home</h1>
     <ul id="texts-list">
     </ul>
+    <div id="create-plan-modal" hidden>
+        <h2>Create plan</h2>
+        <label>Name
+            <input class="plan-name" type="text" />
+        </label>
+        <label>Start date
+            <input class="plan-date-start" type="date" />
+        </label>
+        <label>End date
+            <input class="plan-date-end" type="date" />
+        </label>
+        <button class="save-plan">Save</button>
+        <button class="cancel-plan">Cancel</button>
+    </div>
     <script src="/js/home.js"></script>
 </body>
 </html>